Ionic formula for :

strontium chloride
caesium selenide
calcium astatide
radium polonide
gallium fluoride
scandium(III) bromide
chromium(III) oxide
strontium iodide
lithium arsenide
Aluminium nitrate
Silver nitrate
Calcium hydrocarbonate
Magnesium nitrate

Answer:

it does not matter

Explanation:

g

Answer:

It doesn't matter

Explanation:

In almost all cases, chemical bonds are formed by interactions of valence electrons in atoms. To facilitate our understanding of how valence electrons interact, a simple way of representing those valence electrons would be useful. Again, it does not matter on which sides of the symbol the electron dots are positioned.

The number of valence electron pairs in the outermost shell, as determined by the valence shell electron repulsion theory (VSEPR), would determine the molecular shape.

The molecular shape process, which can be used to determine a molecule's shape, examines the repulsion between bond electron pairs in the outermost electron shell. Studying molecular shape or geometry is important because it has an impact on the majority of its physical and chemical properties.

 Repulsion between electron pairs that surround the central atom under consideration must be as weak as possible for VSEPR to work. The VSEPR theory is based on the idea that the geometry (shape) of a molecule is primarily determined by the repulsion between the pairs of electrons surrounding a central atom.

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Ethene + Cl₂ gives out 1,2 dichloroethane (C2H4Cl2).

When ethene gas reacts with water it hydrates to form ethyl alcohol. When this ethyl alcohol reacts with sulfuric acid it is dehydrated to ethene again. Halogenation reactions of alkenes specifically bromination or chlorination, are reactions in which a dihalide such as Cl 2 or Br 2 is added to the molecule after the carbon-carbon double bond is broken.

Halides attach to adjacent carbons from opposite sides of the molecule. A reaction in which a molecule of a reagent adds across a double or triple bond of an unsaturated compound is called an addition reaction. The presence of double bonds makes the molecule reactive. Since ethene contains a double bond it undergoes additional reactions.

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The benzene is only sparingly soluble in water,  the intermolecular forces of attraction between water and benzene is London dispersion force and the dipole induced dipole forces.

The benzene is a non polar compound and the water is a polar compound. so the like dissolve like. polar dissolves polar and the non polar dissolves nonpolar. the intermolecular force of  attraction between the benzene and the water is the London dispersion forces and the dipole induce dipole force.

Thus, The benzene is only sparingly soluble in water,  the intermolecular forces of attraction between water and benzene is London dispersion force and the dipole induced dipole forces.

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shale oil is used as an energy source and is considered to be the future energy source

what is shale oil?

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The first carbon atom linked to a functional group, such as a carbonyl, is the alpha carbon.

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Answer:

Reactions at the α-Carbon

Many aldehydes and ketones undergo substitution reactions at an alpha carbon, as shown in the following diagram (alpha-carbon atoms are colored blue).

Explanation:

These reactions are acid or base catalyzed, but in the case of halogenation the reaction generates an acid as one of the products, and is therefore autocatalytic. If the alpha-carbon is a chiral center, as in the second example, the products of halogenation and isotopic exchange are racemic. Indeed, treatment of this ketone reactant with acid or base alone serves to racemize it. Not all carbonyl compounds exhibit these characteristics, the third ketone being an example.

Two important conclusions may be drawn from these examples. First, these substitutions are limited to carbon atoms alpha to the carbonyl group. Cyclohexanone (the first ketone) has two alpha-carbons and four potential substitutions (the alpha-hydrogens). Depending on the reaction conditions, one or all four of these hydrogens may be substituted, but none of the remaining six hydrogens on the ring react. The second ketone confirms this fact, only the alpha-carbon undergoing substitution, despite the presence of many other sites. Second, the substitutions are limited to hydrogen atoms. This is demonstrated convincingly by the third ketone, which is structurally similar to the second but has no alpha-hydrogen.

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Answer: m=0.2699g

Explanation:

n=m/M   (n=moles, m=mass, M=molar mass)

nxM=m

0.01x26.99=m    (26.99=molar mass of aluminium (seen on periodic table))

m=0.2699g

Ether layer poured out of the top of the funnel as opposed to being drawn off through the stopcock because when the stopcock is closed, a tiny amount of the solution that was flowing through it is trapped and if the upper layer goes through the stopcock, that small amount of the bottom layer will be present as an impurity.

What do you mean by ether?

Ethers are a type of chemical molecule that contains an ether group—an oxygen atom linked to two alkyl or aryl groups. Ethers are further categorised into two types: simple or symmetrical ethers, which have the same alkyl or aryl groups on both sides of the oxygen atom, and mixed or unsymmetrical ethers, which have different alkyl or aryl groups on both sides of the oxygen atom.

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One provision of the Affordable Healthcare Act is that the government create its own health care insurance company.

For households earning below 100% - 400% of both the federal poverty threshold, the law offers customers subsidies (referred to as "premium tax credits") that reduce prices (FPL). Increase Medicaid coverage to include all adults with incomes below 138% of the federal poverty level.

Obamacare allows people to purchase health insurance regardless of their financial level. You may be eligible for a prescription tax credit or other special discounts that will lower the cost of your health insurance if your family income between 100% or 400percent of total of both the federal poverty threshold (FPL).

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The complete question is-

What is one requirement of the Affordable Care Act?

A. Senior citizens must pay for their own health insurance if they can afford it.

B. The government will set up its own health insurance entity.

C. Government employees can't use private insurance companies.

D. Everyone has to obtain health care coverage.

Because they only require one electron to form an octet

What is octet?

The existence of 8 electrons in an atom's outermost shell indicates that the atom is stable and has the electron configuration of an inert gas.

Every atom wants to be stable, therefore they combine with one another to reach the octet state by gaining, losing, or sharing electrons.

According to the electronic theory of chemical bond formation, atoms can unite by passing, that is, gaining or losing valence shell electrons from one element or atom to another, or by dividing or sharing them to achieve a complete octet in their final shells. The octet rule is what it's called.

The rule of eight, electronic theory of valence, and octet theory of valence are all names for the octet rule. According to the octet theory:

Atoms interact with one other by losing, gaining, or sharing electrons during the creation of a chemical bond. They do, however, develop a stable outermost shell of eight electrons.

Elements in Group 18 have complete outer energy levels and do not easily form ions. Because they only require one electron to create an octet, Group 17 elements are highly reactive.

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The radiation generates radiant energy as waves or particles in the process of doing so.

A beta particle is a particle made up of two protons and two neutrons that is similar to the helium nucleus.

an alpha particle is an electron that the nucleus releases that are negatively charged.

the gamma-ray is the process of an atom's radioactive decay that results in the release of a photon and is caused by the redistribution of electric charge within a nucleus.

The chemical element helium has the atomic number 2 and the symbol He. It is the first member of the noble gas group in the periodic table and is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas. Of all the elements, it has the lowest melting and boiling points. In the observable universe, it is the second-lightest and second-most abundant element (hydrogen is the lightest and most abundant). More than 12 times the mass of all the heavier elements put together, it makes up around 24% of the total mass of the elements.

Due to the highest high nuclear binding energy (per nucleon) of helium-4 compared to the following three elements after helium, its abundance is comparable to this in both the Sun and Jupiter. The fact that helium-4 is a byproduct of both nuclear fusion and radioactive decay is further explained by its high binding energy. The majority of the helium in the cosmos is helium-4, and most of it was created during the Big Bang. Nuclear fusion of hydrogen in stars results in significant amounts of fresh helium being produced.

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The correct question is:-

Use the drop-down menus to identify the definition of radiation and the different types of radioactive emissions.

______is the process of emitting radiant energy in the form of waves or particles.

______is two protons and two neutrons bound together into a particle identical to a helium nucleus. is a negatively charged electron emitted by the nucleus.

______is the radioactive decay of an atom that releases a photon, which results from a redistribution of electric charge within a nucleus.

Nuclear charge, atomic radius, shielding effect are three factors determine the reactivity of elements.

An element is a compound that cannot be changed into another substance. The roughly 100 elements each have a different type of atom. Every object in the universe has atoms out of at least one element and maybe more. The periodic table contains a list of every known element, with similar elements being grouped together.

Russian chemist Dmitri Mendeleev created the framework for the modern periodic table in 1869, leaving blank spots for elements that were yet to be identified. He organised the elements into groups based on its atomic weight, rearranging them if he found that they simply does not fit.

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Answer:

0.0250 dm 3.

Explanation:

Volume of sodium hydroxide solution = 25.00 ÷ 1000 = 0.0250 dm 3. Amount of sodium hydroxide = 0.100 × 0.0250 = 0.00250 mol. From the equation, 0.00250 mol of NaOH reacts with 0.00250 mol of HCl

when a mixture of unburned fuel gases and oxygen come in contact with an ignition source , smoke or fire gas explosion occurs when unburned pyrolysis products and flammable products of combustion accumulate and mix with air, forming a flammable mixture and introduction of a source of ignition results in a violent explosion of the pre-mixed fuel gases and air.

What are fuels ?

Fuels are dense stores of energy that are consumed to provide energy services such as heating, transportation, and power generation.  Although most fuels ultimately derive their energy from the sun (see 'Energy Conservation'), it is usually considered the primary energy source. When people talk about saving energy, it usually means using less fuel (see Saving Fuel).

Nearly all primary energy for humans, about 95%, comes from primary fuels (as opposed to primary energy streams). These fuels enter power plants (, engines, heaters, and everything else that humans get work and heat from). This percentage is slightly different for power generation. 85% of the primary energy used to generate electricity comes from combustibles (as opposed to primary energy streams).

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Workplace labels are not required to include borders or particular language, but they do need the following details: Product identification data for the product's secure handling.

Labels are a suitable set of written, printed, or graphic informative components about a hazardous chemical some of which are attached to, printed on, or fastened to the adjacent container of something like a hazardous chemical but rather to the outside packaging, as defined by the HCS.

In order to give the customer the ability to make an educated decision regarding the potential for energy savings—and consequently, cost savings—of the relevant marketed product, the Bureau the Energy Efficiency launched this same Standards & Branding programme for appliances and appliances in 2006.

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Metal hydroxide, in this example M(OH)3, is created when a soluble metal oxide reacts with water (aq).

While some metals do not react with water and instead generate metal hydroxide, others do. Different metals have different water reactivity. Highly reactive metals include sodium and potassium. Alkalis like sodium hydroxide and potassium hydroxide are created when they interact with water.

According to these findings, metal hydroxide sludge can be recycled and used to treat textile effluent in dye removal procedures.

Metals and oxygen react to generate substances called meta oxides. The ionic components of these compounds will separate if they are put in water.

Metal oxides in water will most likely dissociate,

2M³⁺ + 3O²⁻

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Niels Bohr first proposed that the electron in the hydrogen atom can have only certain energies.

Niels Bohr modeled the atom with electrons that could simplest have precise solid orbits. This model of the atom became the first to incorporate the quantum concept. That electron may want to best arise in unique orbits defined why factors consisting of hydrogen emitted and absorbed mild at specific wavelengths.

Niels Bohr proposed a principle for the hydrogen atom, based on the quantum idea that a few bodily quantities only take discrete values. Bohr proposed that electrons no longer radiate strength as they orbit the nucleus, but exist in states of constant strength that he referred to as desk-bound states. Bohr's paintings changed based totally on the emission spectra of hydrogen.

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Thus, a total of 8 acetyl-CoA, 7 NADH, and 7 FADH2 molecules are produced.

The beta oxidation of a 16 carbon fatty acid produces how many molecules of NADH?

The fatty acid with the most common structure, palmitic acid, has sixteen carbon atoms but no carbon-carbon double bonds. A total of seven cycles of beta oxidation are required to fully degrade the fatty acid. Thus, a total of 8 acetyl-CoA, 7 NADH, and 7 FADH2 molecules are produced.

A 30 C saturated fatty acid will provide how many acetyl-CoA molecules?

A fatty acid with 30 carbons makes up the molecule. It will result in 15 Acetyl CoA molecules because it is a 30-carbon fatty acid.

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The equilibrium concentrations of all species 0.00762M.

Solution:

N₂+ o2 ⇄ 2N0

0.38 -x 0.38 I C

+2x

E (0.38-x) (0.38-x) 2x [No]2 [N2][02]

401X10-4 = (2x) 2 (0.38-2)2 solving, x = 0.0038/ on at equilibrium.

[N₂]=[%₂] = 0.38-2 =0.376M

[No] = 2x = 0.00762M.

Write the equilibrium constant equation for the reaction. Substitute the known K value and the final concentration to solve for x. Calculate the final concentration of each substance in the reaction mixture. Check your answer by plugging these values ​​into the equilibrium constant equation and bringing K to a chemical equilibrium state.

In this state, the forward reaction rate is equal to the reverse reaction rate. The equilibrium constant equation is a mathematical relationship that describes how the concentrations of products vary with the concentrations of reactants.

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let us give the reaction of nucleophilic substitution reactions,

[tex]CH3-X + Nu ^{-} --- > CH3-Nu + X^{-}[/tex]

A family of chemical reactions known as nucleophilic substitution reactions occurs when one nucleophile substitutes another. It is pretty reminiscent of the common displacement reactions we observe in chemistry, where a more reactive element replaces a less reactive part from its salt solution. The "leaving group" is the group that accepts an electron pair and displaces the carbon, while the "substrate" is the molecule on which substitution occurs. An anion or neutral molecule is how the departing group exits.

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The annual cycle is related to the atmospheric CO₂ concentration.

CO₂ is measured as parts per million (ppm), which is numerically equivalent to micromoles of CO₂ per mole of air. The SI unit for CO2 concentration is µmol per mol. CO₂ typically decreases during sunny, warm days because of photosynthesis removes CO₂ from the air. This generally occurs in summer days.

In the record of atmospheric CO₂ concentration at the Mauna loa observatory there is a trend and an annual cycle. The trend of the Mauna loa observatory with atmospheric CO₂ concentration is in the upward trend.

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Gallium bromide + Difluorine gives Gallium Trifluoride + Dibromine. This reaction is called as single displacement reaction.

Gallium bromide + Difluorine gives Gallium Trifluoride + Dibromine. The balanced chemical equation for the follwing reaction is as follow :

2GaBr₃    +               3F₂   ----->      2GaF₃    +              3Br₂

gallium bromide      Fluorine      gallium trifluoride      dibromine

when the highly reaction element displace the low reactive element then the reaction is called as balanced chemical reaction. Here fluorine displace the bromine  called as the single displacement reaction.

Thus , Gallium bromide + Difluorine gives Gallium Trifluoride + Dibromine. This reaction is called as the single displacement reaction.

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The amount of 4.86 ml needed to completely react with 11.73 ml of 1.006 m ca(oh)2 is 4.86 ml.

given data to  be calculated:-

Ca3(PO4)2 (s) + 6H2O can be used to calculate this: 3Ca(OH)2 (aq) + 2H3PO4 (aq) (l)

ca moles (OH)

2  present 11.00 moles of H3PO4 are required; 7.33 moles of H3PO4 in a volume of ml are required; 7.33/1.508 = 4.86.

The direction that creates more moles of gas benefits from an increase in volume, and since there are more moles of products in this case, the reaction will shift to the right and produce more moles of products.

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For the graph of accelerated motion;

a) The graph begins at origin

c) The slope is positive

d) The line of best fit moves upwards.

We define motion as the change in the position of an object with time. Now we know that an object has moved if in a given time interval we can see that the position of the object changed. That is, the object is no longer where it was.

As the object is moving it has to move with a given velocity because velocity is defined as the change in the displacement of an object with time. As the velocity of the object is changing we say that the body is accelerating.

The acceleration is the rate of change of the velocity with time and if the velocity changes by equal amounts in equal time intervals, we say that this is a uniform acceleration.

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The organelles that fold, modify, and transport proteins are the golgi bodies that are present in the eukaryotic cell. The initial process takes place in the rough endoplasmic reticulum (RER), but later the whole process is carried out by golgi bodies.

The eukaryotic cell has different organelles such as nuclei, golgi bodies, mitochondria, etc., and all of them carry out specific functions of the cell. The ribosome on the endoplasmic reticulum performs protein synthesis via a process known as translation. The polypeptide chain enters the RER lumen and folds; it is then sent to the golgi for additional modifications, such as lipid addition for some proteins and carbohydrate moiety for others, in order for them to function properly.

Hence, the cell organelle that fold, modify, and transport protein are the golgi bodies 

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Answer:

I don't know

Explanation:

Its question that answer

N₂ has a bond order of three. O₂ has a bond order of two. this means that N₂ is more stable than O₂ and N₂ has a shorter bond length than O₂

The bond order is the number of bond pairs of electrons between two atoms. For covalent bonds between two atoms, a single bond has a bond degree of 1, a double bond has a bond degree of 2, a triple bond has a bond degree of 3, and so on.

Bond order is described as the gap among the facilities of covalently bonded atoms. The bond duration is decided via way of means of the wide variety of electrons within side the bond (bond order). The higher the bond order, the stronger the attraction between the two atoms and the shorter the bond length. In general, the length of a bond between two atoms is approximately the sum of the covalent bond radii of the two atoms. Bond lengths are expressed in picometers. Therefore, the bond lengths increase in the order:

Single bond > double bond > Triple bond

The higher the bond order, the more stable the molecule. A stable bond is less likely to break and therefore has a higher binding energy. As the bond order increases, the bond length decreases. Triple bonds are more energetic and stable because they have shorter bond lengths than double or single bonds

Therefore, N₂ has a bond order of three. O₂ has a bond order of two. this means that N₂ is more stable than O₂ and N₂ has a shorter bond length than O₂

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