The difference in stability between Li2+ and Li2 results from several factors.
First, Li2+ has a fractional bond order, meaning that the electrons in the bond are less strongly held and more easily able to move around. As a result, Li2+ is more reactive and less stable than Li2.
Second, Li2+ has a higher charge density than Li2. This means that it is more tightly held together, making it more reactive and less stable. Third, Li2+ is more likely to form a coordinate covalent bond than Li2. In a coordinate covalent bond, one of the atoms contributes electrons to form the bond, making it more reactive and less stable.
Finally, Li2+ has higher ionization energy than Li2. This means that it is more difficult to remove electrons from Li2+, making it less stable.
In summary, Li2+ is less stable than Li2 due to its fractional bond order, higher charge density, propensity to form coordinate covalent bonds, and higher ionization energy.
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both the codons uuu and uuc specify the amino acid phenylalanine. this is possible because the genetic code is __________. a. commaless b. non-overlapping c. degerate d. non-ambigous
Phenylalanine is indicated by the codons uuu & uuc. The degenerated genetic code makes this feasible.
What exactly does it mean to be a degenerate?adjective. If you label someone as degenerate, you are disapproving of them because you believe they have poor morals or standards of behavior. A bunch of vile computer hackers, to be exact. Synonyms include vile, base, corrupt, and fallen. Additional Degenerate Synonyms
How do you recognize degeneracy in something?If an energy level in quantum mechanics corresponds in two or more distinct observable states of the a quantum system, it is said to be degenerate. A quantum mechanical system is considered to be degenerate if two or more of its states have the same energy value when measured.
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consider the chlorite anion. what is the central atom? enter its chemical symbol. how many lone pairs are around the central atom? what is the ideal angle between the chlorine-oxygen bonds? compared to the ideal angle, you would expect the actual angle between the chlorine-oxygen bonds to be ...
The actual angle between chlorine-oxygen bonds may differ slightly from the ideal angle due to various factors such as electron-electron repulsion and bond length
The central atom of the chlorite anion (ClO2^-) is chlorine and its chemical symbol is Cl.
There are two lone pairs of electrons around the central chlorine atom. The ideal angle between the chlorine-oxygen bond of the chlorite anion is about 120 degrees.
This is because the molecular structure of the chlorite ion is curved, with a chlorine atom bonded to two oxygen atoms. The actual angle between chlorine-oxygen bonds may differ slightly from the ideal angle due to various factors such as electron-electron repulsion and bond length. However, it is generally expected that the actual angles between chlorine-oxygen bonds are close to the ideal angles.
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66.7 ml of ethanol was dissolved in 222.2 ml of water. what is the volume % of the ethanol in the solution? Respond with the correct number of signficant figures in scientific notation. (Use E notation and only 1 digit before decimal, for example, 2.5E5 for 2.5 times 10 to the power of 5)
In 222.2 mL of water, 66.7 gallons of ethanol was dissolved. The volume percent of ethanol in the mixture is 30.0%.
Can people drink ethanol?Over two billion individuals consume ethyl alcohol (also known as ethanol) on a daily basis. By fermenting yeast, sugars, and starches, this kind of alcohol is created. Beverages with ethanol as an ingredient, including beer and wine, have been consumed by people for generations to alter their mood.
Is alcohol made of ethanol prohibited by Islam?If the amount of ethanol in a product is less than 1%, it is regarded as an important preservative, making it eligible for Halal certification as Mubah, which is permissible as long as the ethanol was either produced naturally through fermentation with in presence of oxygen or was artificially supplied.
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How could a lake be considered a part of one of Earth’s spheres during one season and part of another sphere during another season?
The interactions between Earth's five systems—the geosphere, biosphere, cryosphere, hydrosphere, and atmosphere—create the conditions we are accustomed to.
What is Atmosphere?On Earth, there are five major systems, or spheres. The Earth's interior and surface, which are both formed of rocks, make up the first system, the geosphere.
The second system is made up of the little area of the planet that may sustain life; this area is known as the biosphere. The third system contains the hydrosphere, or regions of Earth that are completely covered with water.
The fourth system is the atmosphere, a gaseous envelope that maintains the planet's temperature while also supplying carbon dioxide for photosynthesis and oxygen for breathing.
Therefore, The interactions between Earth's five systems—the geosphere, biosphere, cryosphere, hydrosphere, and atmosphere—create the conditions we are accustomed to.
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Rank the following in order of increasing electrolyte strength ( 1 = weakest; 4 = strongest) a)Al2S b)HzS c)(NH4)3PO4 d)Fe(N03)2
The order of increasing electrolyte strength is as follows:
Al2S.HzS.(NH4)3PO4.Fe(N03)2.An electrolyte is a substance that produces ions in solution and can conduct electricity. The strength of an electrolyte is a measure of how well it ionizes or dissociates in solution, and therefore how well it can conduct electricity. In general, strong electrolytes ionize completely in solution, while weak electrolytes only ionize partially. Therefore, the order of increasing electrolyte strength reflects the ability of these substances to ionize in solution and conduct electricity.
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what type of pollution is a man washes clothes in a stream using a detergoent that contains phosphorus
Nutrient pollution occurs when a person uses a detergent containing phosphorus to wash his clothing in a stream.
Nutrient pollution, it is the process where too many nutrients, mainly nitrogen and phosphorus, are added to bodies of water and can act like fertilizer, causing excessive growth of algae. Nutrients can run off of land in urban areas where lawn and garden fertilizers are used.
Phosphorus is an essential macronutrient for biota, but it is also a common pollutant because, in many regions of the world, it is delivered in excess to receiving surface waters.
Thus, phosphorus-containing detergent used by a guy to wash his clothing in a stream is nutrient pollution or contamination.
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kJ. The energy of 3600 cal is equal to Hint: 1 cal = 4.184 J
O 0.86
O 15
O 3.6
O 4.184
O 15 000
The energy of 3600 calory = 15kJ.
The option b) 15 is correct answer.
Because 1cal = 4.184J
⇒ 3600cal = 3600 × 4.148
= 14,932.8 ≈ 15000J
= 15kJ
What is the relation between 1 calorie and Joule?
1 Calorie/kcal = 4.2 kilojoules
Joule is the unit of energy.
Is A Joule the same as a calorie?
Kilojoules and calories are essentially two separate terminology-based units of measurement for the energy found in food and the energy we burn. By dividing the number of calories by 4.2, one can convert them to kilojoules.
Why is 1 calorie 4.18 joules?
It is false that 1kcal = 4.18 joules. The 'kcal' is one of the most common physical units which are used to measure the energy. The joule is now the SI unit used to measure energy. 1 kcal = 4184 joules (approx.)
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a sample prepared using the solvent and any other chemicals in the sample solutions, but not the absorbing substance
The refrence blank is the sample prepared using the solvent and any other chemicals in the sample solutions, but not the absorbing substance.
A square-shaped container, normally product of quartz, designed to preserve samples in a spectrophotometer is the cuvettes.
A dimension of the quantity of mild that passes via a pattern is transmittance.
A dimension of the quantity of mild this is taken in through a pattern is called absorbance.
A unit this is usually utilized in spectrophotometry this is inversely proportional to power and usually measured in nanometers is the wavelength.
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if 5 mol no2 react with 1 mol h2o, how many moles of the excess reactant remains when the reaction is complete? 3 no2 h2o ⟶ no 2hno3
2 moles of NO2 remained after the reaction .
Why do moles appear on your body?Moles develop when melanocytes, skin cells, cluster together. Generally speaking, melanocytes are found all throughout the skin. The natural pigment and gives skin its color, melanin, is produced by them.
Briefing :
The balanced equation for the reaction is given below:
3NO2 + H2O —> NO + 2HNO3
Next, we shall determine the excess reactant. This is illustrated below:
From the balanced equation above,
3 moles of NO2 reacted with 1 moles H2O.
Therefore, 6.5 moles of NO2 will react with = (6.5 x 1)/3 = 2.17 moles of H2O.
From the above calculations, we can see that it will take a higher amount i.e 2.17 moles than what was given i.e 1 mole of H2O to react completely with 6.5 moles of NO2.
Therefore, NO2 is the excess reactant and H2O is the limiting reactant.
Next, we shall determine the number of mole of the excess reactant that reacted in the reaction. This is illustrated below:
From the balanced equation above, we can see that 3 moles of NO2 reacted with 1 mole of H2O.
Finally, we shall determine the leftover mole of the excess reactant after the reaction. This is illustrated below:
Given mole of NO2 = 5 moles
Reacted mole of NO2 = 3 moles
Leftover mole of NO2 =...?
Leftover mole = Given mole – Reacted mole
Leftover mole of NO2 = 5 – 3
Leftover mole of NO2 = 2 moles.
Therefore, 2 moles of NO2 remained after the reaction.
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Why is the enthalpy of formation of oxygen zero?
The enthalpy of formation of oxygen is zero because the enthalpy of formation any compound to form its elemental state is zero.
Here in this case, because oxygen is present in its elemental state it has zero enthalpy of formation because it does not require any energy to occur in a naturally occurring state.
Not only oxygen if any other compound is present in its naturally occurring state then it will have zero enthalpy of formation.
Because it does not require any amount of energy for any element to occur in its elemental state.
So, this is why we are concluding that because oxygen is present in its elemental state it has 0 enthalpy of formation.
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Which type of compound is P2O4? a. Fixed charge ionic compound b. Variable charge ionic compound c. Molecular compound d. Metallic compound
Answer:
since both of them are non-metals its not gonna be an ionic compond so its C.Molecular Compound
what atomic or hybrid orbitals make up the bond between c1 and c2 in propylene, ch2chch3?
The triple bond between C1 and C2 is formed by the hybrid orbitals spsp s p s p.
What is the molecular shape VSEPR theory, often known as the valence-shell electron-pair repulsion theory?
The fundamental idea in molecular structures is known as valence shell electron pair repulsion (VSEPR). It basically says that electron pairs are attracted to one another and want to keep as far away as possible because they are made up of negatively charged particles.
What are the three fundamental assumptions of the VSEPR theory?
Since electron pairs are negatively charged, they will go as far apart as they can. Instead of bound electron pairs, lone pairs use up space. In comparison to single bonds, double bonds
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The IR spectrum of limonene is shown in Figure Label each diagnostic peak with the appropriate bond (ignore the peaks in the fingerprint region). Figure 4: IR Spectrum of Limonene courtesy of SDBSWeb (National Institute of Advanced Industrial Science and Technology; July 22, 2006) What functional group(s are present in limonene?
The double bond is the only functional group in limonene. The terpene component limonene can be found in the citrus peel essential oil.
What are the limonene's functional groups?A methyl group is substituted at position 1 and a prop-1-en-2-yl group is substituted at position 4 in the monoterpene limonene.
What is the R SH functional group?Alkanethiols or Alkyl thiols are thiols with the structural formula RSH, in which an alkyl group (R) is joined to a sulfhydryl group (SH). Alcohols and thiols exhibit comparable connectivity. Orange and other citrus fruit peels are used to make the oil limonene.
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brainly which process forms all elements up to and including iron, except light elements such as hydrogen and helium?
Nuclear fusion is the process which forms all elements up to and including iron, except light elements such as hydrogen and helium.
Nuclear Fusion reactions power the solar and different stars. In a fusion response, two mild nuclei merge to shape a single heavier nucleus.
The method releases power due to the fact the total mass of the ensuing single nucleus is less than the mass of the 2 unique nuclei. The leftover mass turns into electricity.
For years, the science has proved difficult to master. However over the last year, nuclear fusion has inched in the direction of fact. Scientists are mere years from getting extra energy out of fusion reactions than the power required to create them, they stated.
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how many unique proton signals are seen in the h1 nmr spectrum of ethanol after shaking with d2o? number of unique proton signals:
After shaking with D₂O, the spectrum of ethanol shows two proton signals. The OH signals will no longer exist.
Three peaks may be seen in the ethanol 1H-NMR spectra. The following are the chemical shifts (Image 1).
The spectrum of ethanol after shaking with D₂O shows only two peaks. After shaking with D₂O, the peak that corresponds to OH disappears at this point. The following are the chemical shifts (Image 2).
At around 3.57 ppm, a water peak forms while the -OH resonance totally vanishes. This happens as a result of leftover H₂O and HOD in the D₂O bottle and traded out hydroxy protons (-OH), which now produce more H₂O.
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66.7 ml of ethanol was dissolved in 222.2 ml of water. what is the volume % of the ethanol in the solution? Respond with the correct number of signficant figures in scientific notation. (Use E notation and only 1 digit before decimal, for example, 2.5E5 for 2.5 times 10 to the power of 5)
A total of 66.7 liters of ethanol were dissolved in 222.2 mL of water. The mixture contains 30.0% ethanol by volume.
Is ethanol safe to consume?Ethyl alcohol, usually known as ethanol, is regularly consumed by more than two billion people worldwide. This type of alcohol is produced by fermenting yeast, sugars, and starches. People have long consumed alcoholic beverages that contain ethanol to change their mood, such as beer and wine.
Does Islam forbid ethanol-based alcohol?If a product contains less than 1% of ethanol, it is considered to be a significant preservative and qualifies for Halal logo as Mubah, which is acceptable provided the ethanol was either found naturally through fermentation with oxygen present or was artificially added.
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consider a di-glycine dipeptide (e.g. two glycine amino acids that have been covalently bonded together via a peptide bond). if the amino group and the c-terminal carboxy group are both protonated, which ph value do you expect is most consistent with these observations?
The pH of the solution is now obtained as 10 after deprotonation.
What is the correct pH value?We know that the pH has to do with the degree of the acidity or the alkalinity of system. Now we know that the pH can be measured by means of a pH meter.
In the body, there are a lot of biological molecules that work together to make the body to function effectively. Of all of these compounds, the most abundant of the biological molecules that are important in the body are the protein molecules.
The protein molecule is composed of the amino acids. Now we know that the amino acids can be protonated or deprotonated and the pH of the system would depend on whether the amino acid is protonated or deprotonated. The deprotonation of the substrate would make it much more basic.
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Missing parts;
Consider a di-glycine dipeptide (e.g. two glycine amino acids that have been covalently bonded together via a peptide bond). If the amino group is neutral and the C-terminal carboxy group is deprotonated, which pH value do you expect is most consistent with these observations?
Group of answer choices
a. 1
b. physiological pH
c. 3
d. the pKa of an aspartic acid side-chain carboxylate
e. 10
How many molecules are in the element 3Na2SO4?
A mole is the unit that measures the amount of a substance. One mole of 'something' contains 6.022 x 1023 entities.
How do you know how many molecules an element has?To determine the required number of molecules, first determine the molecular weight of the substance for one mole, then divide the molar mass value by the molecular mass, and multiply by the Avogadro constant.Elements can be made of one atom, like He, or be elemental molecules, such as hydrogen (H2), oxygen (O2), chlorine (Cl2), ozone (O3), and sulfur (S8). Atoms are not drawn to scale. Some elements are monatomic, meaning they are made of a single (mon-) atom (-atomic) in their molecular form.Taking into account the definition of avogadro's number, 3 moles of Na₂SO₄ are 1.8069×10²⁴ atoms of Na₂SO₄.Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.In this case you have 3 moles of the compound Na₂SO₄. Then you can apply the following rule of three: if 1 mole of the compound contains 6.023×10²³ atoms, then 3 moles of the compound contain how many atoms of copper?amount of atoms of copper= (6.023×10²³ atoms× 3 moles)÷ 1 moleamount of atoms of copper= 1.8069×10²⁴ atomsFinally, 3 moles of Na₂SO₄ are 1.8069×10²⁴ atoms of Na₂SO₄.3Na= 3 sodium atoms2S= 2 sulfur atoms2O4= 8 oxygen atomsThe numbers in front of atoms are like coefficients(i.e. 2x or 3y). You should have 14 atoms in total.To learn more about molecules refer to:
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why does the existence of unpaired electrons in the valence shell determine the reactivity of an atom
The electrons that are found in an atom's outermost shell are known as valence electrons. The reason for this is because if atoms engage, the electrons in their outermost shells are the first to make contact with one
Which electrons have valence?The electrons located in an atom's valence shell, and energy level, are known as valence electrons. For instance, oxygen contains two valence electrons in the 2s subshell as four with in 2p subshell, for a total of six valence electrons. The oxygen's valence electron configuration is 2s22p4.
Are electron shells always eight?The octet rule, a general rule of thumb, states that most biologically significant elements require eight electron in the outer shell to be stable. Even if the valence shell is the some shell, that has a maximum capacity for holding 18 electrons, some atoms can nevertheless be stable with an octet.
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pyroxene has the chemical formula, (naca)(mg,fe,al)(al,si)2o6. is pyroxene a felsic or mafic silicate mineral?
pyroxene has the chemical formula, (naca)(mg,fe,al)(al,si)2o6. pyroxene is a Mafic silicate mineral.
silicate mineral or extrusive igneous rich in iron and magnesium is widely recognized as a mafic mineral or rock. The large percentage of mafic minerals are dark, and some of the most common rock-forming mafic minerals are olivine, pyroxene, amphibole, and biotite. Basalt, diabase, and gabbro are examples of common mafic rocks. When trying to discuss stones or lava, mafic refers to the quantity of silica inside the lava or rock, whereas felsic refers to the amount of silica in the lava or stone. 6. Mafic rocks are darker in colour than felsic rocks. A chemical formula is a way to convey information about the chemical percentages of atoms that make up a specific chemical compound and molecule by using chlorine atom symbols, numbers, and occasionally other symbols like parentheses, dashes, brackets, commas, and plus and minus signage.
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when 0.485 g of compound x is burned completely in a bomb calorimeter containing 3000 g of water, a temperature rise of 0.285°c is observed. what is δu of the reaction for the combustion of compound x? the hardware component of the calorimeter has a heat capacity of 3.81 kj/°c. the specific heat of water is 4.184 j/g·°c. the molar mass of compound x is 56.0 g/mol.
The change in internal energy for 56 g/mol of the molecule is discovered to be e -539 kJ/mol.
A reaction's internal energy change is represented by the symbol U. U = calorimeter heat plus solution heat for a reaction in the bomb calorimeter.
Heat capacity equals heat Temperature
Regarding, 0.485 g compound
For the 56 g/mol compound, U = 3.81 0.285 + 4.184 3000 0.285 U = 4.67 kJ
U = moles of energy/mass
56 U equals 539 kJ/mol at U = 4.67/0.485.
The whole amount of energy that a thermodynamic system has inside of it is known as internal energy. It is the energy required to develop or prepare the system in its current internal condition, and it comprises both internal kinetic energy and potential energy contributions. It keeps track of the system's energy gains and losses brought on by modifications in its internal state. [1][2] It excludes any external energies from the surrounding force fields as well as the kinetic energy of motion of the entire system. The first law of thermodynamics, which is based on the fact that an isolated system's internal energy is constant, is stated as the law of conservation of energy. The interior energy is a vast quality.
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In the Lewis structure of ClF, the formal charge on Cl is ________, and the formal charge on F is ________. A) -1, -1 B) 0, 0 C) 0, -1 D) +1, -1
the correct opttion is (A) -1,-1 ClF2-lewis structure includes two Fluorine atoms surrounding the central Chlorine (Cl) atom (F). Each fluorine atom (F) and chlorine atom (Cl) are connected by a single bond (F). The chlorine atom has a formal charge of -1. (Cl).
In other words, you must now determine the formal charges of the fluorine (F) and chlorine (Cl) atoms in the ClF4 molecule. You must apply the following formula to determine the formal charge; Formal charge is equal to the sum of the bonding and non-bonding electrons.
Four Fluorine atoms circle the central Chlorine atom (Cl) in the ClF4-Lewis structure (F). Each fluorine atom (F) and chlorine atom (Cl) are connected by four single bonds (F).
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Compare 2,3-pentanediol and 2,4-pentanediol with respect to the number of stereoisomers possible for each. Which ones are chiral? Which are achiral?
Both molecules have two chiral centers, one at each point of attachment for a hydroxyl group.
What are stereoisomers?According to a general definition, stereoisomers are isomers with the same composition (i.e., the same components), but different orientations in space. Enantiomers and diastereomers are the two different types of stereoisomers.
X = [tex]2^{n}[/tex], where n is the total number of stereogenic atoms in the molecule, is the formula for calculating the maximum number of stereoisomers. The maximum number of stereoisomers can be accurately determined by the formula X = [tex]2^{n}[/tex], but in cases of great symmetry, it cannot determine the actual number.
Both molecules have two chiral centers, one at each point of attachment for a hydroxyl group. It is not possible to have a stereoisomer of 2,3-pentanediol with a plane of symmetry, while there is one stereoisomer of 2,4-pentanediol with a plane of symmetry. The plane of symmetry reduces the possible number of stereoisomers.
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which of the following best describes the pattern in the atmospheric co2 concentration data over the past 200,000 years? responses the concentration of co2 fluctuate between 150 ppm and 250 ppm. the concentration of c o 2 fluctuated between 150 parts per million and 250 parts per million . the concentration of co2 fluctuate between 150ppm and 250 ppm until recently, when the concentration rose exponentially. the concentration of c o 2 fluctuated between 150 parts per million and 250 parts per million until recently, when the concentration rose exponentially. the concentration of co2 remained constant at first from 200,000 years ago until 50,000 years ago, and then began a steady decline. the concentration of c o 2 remained constant at first from 200,000 years ago until 50,000 years ago, and then began a steady decline. the concentration of co2 rose exponentially to 400ppm and leveled off at carrying capacity.
Before recently, the CO2 levels varied between 150 ppm and 250 ppm before rising dramatically.
Which successional stage is the oldest?The forest, sometimes known as the climax stage, is the first stage of a succession performance. A lichen is an example of an early species that can be found in habitats like a forest.
What caused the environment of the peppered moth to alter, and how?Urban tree trunks and buildings had turned black due to sooty air pollution brought on by industrialization and home coal fires, which also killed out lichens. Thus, the melanic form of the moth was better hidden and more likely to live and create progeny, whereas the pale form was now more visible to predators.
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Which of the following has the lowest freezing point
A. 0.1 M glucose B. 0.1 M ethanol C. 0.1 M urea D. 0.1 m Sucrose
The right answer is C) A solute's concentration affects a colligative property that causes a depression in freezing point.
What does chemistry mean by a colligative property?
Colligative qualities of solutions are characteristics that depend on the quantity of molecules or ions in the solute, but not on the kind of solute. Osmotic pressure, boiling point elevation, freezing point depression, and vapor pressure reduction are examples of ligand-like properties.
Why are colligative qualities given that name?
Colligative means "connected to the number" in Greek, which suggests that these attributes are related to the quantity of solute particles rather than their identities. These features are known as colligative properties.
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the main reason that no2 has a higher boiling point than co2 is that no2
Due to its dipole-dipole interactions, NO2 does have a higher boiling point as CO2. The molecular structure of CO2 is straight, and therefore lacks a net molecule dipole moment.
Describe the dipole moment using an example.
The symmetry of a molecules is established using the dipole moment. The molecules will not be symmetric and have some dipole moment if they contained two or even more polar links. For instance, H2O is 1.84 D and CH3Cl, or methyl chloride, is 1.86 D.
How is the dipole moment determined?
The below formula is used to determine a chemical bond's dipole moment: = qr (where q is the size of a separated charge, r is the gap between the charges, and is the bonding dipole moment).
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Which of the following statements about amino acids is TRUE?
a) Amino acids contain a central α carbon.
b) Amino acids are dipolar ions, or zwitterions.
c) All amino acids, except glycine, contain side chains.
d) Amino acids contain a central α-carbon and are dipolar ions, or zwitterions.
The right answer is D. Amino acids are zwitterions, or dipolar ions, with a core -carbon.
Simple definition of what amino acids are:Amino acids are the building blocks of proteins. Life's essential building blocks are proteins and amino acids. Byproducts of the breakdown or digestion of proteins are amino acids. The body uses amino acids to make proteins that help with meal digestion.
What, for instance, are amino acids?These include alanine, serine, arginine, aspartic acid, taurine, cysteine, ammonia, proline, glycine, trypsin, and tyrosine. Other than these, there are nine other amino acids that are absolutely necessary because our bodies cannot make them.
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the changing of a substance from a liquid into a vapor or gas is called
Answer: Boiling and Evaporation: Evaporation is the change of a substance from a liquid to a gas. Boiling is the change of a liquid to a vapor, or gas, throughout the liquid.
Explanation: Boiling and Evaporation: Evaporation is the change of a substance from a liquid to a gas. Boiling is the change of a liquid to a vapor, or gas, throughout the liquid.
which compound would you expect to have greater surface tension, acetone [(ch3)2co] or water (h2o) ?
The surface tension depends on the intermolecular forces, and it rises as the strength of those forces rises. Hydrogen bonds are present in water in acetone, but not the other way around. Water, therefore, has a high surface tension.
The only other liquid with a higher surface tension than water is mercury. A sign that the hydrogen bond is present is surface tension. Hydrogen bonds between the water molecules below them and those at the surface of the water create a powerful attraction between them.
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In an endothermic reaction, energy is
Answer:
Endothermic reactions absorb energy
Explanation:
Answer:
Energy (Heat energy) is absorbed from the surroundings
Explanation:
When the total heat content of the products is more than the reactants, heat energy must be absorbed from the surroundings for the reaction to proceed . such reaction is said to be endothermic
