Answer:
the correct answers is "neutralize"
Explanation:
When an acid is related to a base or also called an alkali and they reach a pH of 7, this acid will be neutralized or it will be canceled as the question says.
This happens so it reaches an equilibrium between both compounds, where the solution medium where these two compounds are is NEITHER ACID NOR BASIC, that is why it is called NEUTRAL medium.
Whenever you read that the pH of a solution is balanced, a neutralized acid, or a ph7 it means that the solution is NEUTRAL.
Given the formula representing a compound: What is the IUPAC name of this compound?
Answer:
2,2- dichloro-heptane
Explanation:
The IUPAC name of the compound is 2,2-dichloro-heptane
Kinetic energy definition
Answer:
kinetic energy. (General Physics) the energy of motion of a body, equal to the work it would do if it were brought to rest. The translational kinetic energy depends on motion through space, and for a rigid body of constant mass is equal to the product of half the mass times the square of the speed.
Answer:it is the simplest one
the energy possessed by a body due to its motion is called kinetic energy
K.E.=[tex]\frac{1}{2}[/tex]mv²
Consider the equations below.
H₂ → 2H
CHA+HC2H5
C2H5 + HC2H6
When these equations are added together, what will the overall equation be?
C₂H4+H₂C₂H
H2 + CH4 + 2H + C2H5+ → 2H + CH3 + CHE
C2H4 +C2H4 + H2>C2H5 + C2H5
Answer:
a
Explanation:
The overall equation is [tex]C_2H_4 + H_2 ---- > C_2H_6[/tex].
What is Chemical Equation?A chemical equation is defined as a symbolic representation of a chemical reaction in the form of symbols and formulas, in which reactant elements are given on the left and product units on the right.
For example,
[tex]NaOH+ HCl ---- > NaCl+ H_2O[/tex]
In this, reactants are converted to products which is symbolized by a chemical equation. For example, iron (Fe) and sulfur (S) combine to form iron sulfide (FeS).
Fe(s) + S(s) → FeS(s)
here, the plus sign indicates that iron reacts with sulfur.
Thus, the overall equation is [tex]C_2H_4 + H_2 ---- > C_2H_6[/tex].
Learn more about Chemical Equation, here:
https://brainly.com/question/30087623?
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The recommended dose of aspirin will yield approximately 100.0 micrograms/mL in the blood. How many molecules of aspirin (C9H8O4) are in a drop (0.100 mL) of blood?
Answer:
3.34x10¹⁶ molecules of aspirin are in a drop of blood
Explanation:
The recomended dose of aspirin in blood is 100.0μg/mL =
1x10⁻⁴g aspirin / mL of blood.
In a drop (0.100mL) there are:
0.100mL ₓ (1x10⁻⁴g aspirin / mL of blood) = 1x10⁻⁵g aspirin.
Molecular mass of aspirin is:
9C = 12.01g/mol ₓ 9 = 108.09g/mol
8H = 1.01g/mol ₓ 8 = 8.08g/mol
4O = 16g/mol ₓ 4 = 64g/mol
108.09 + 8.08 + 64 = 180.17g/mol
Thus, moles of aspirin in 1x10⁻⁵g are:
1x10⁻⁵g ₓ (1mol / 180.17g) = 5.55x10⁻⁸ moles of aspirin
In 1 mole, you have 6.022x10²³ molecules, thus:
5.55x10⁻⁸ moles of aspirin ₓ (6.022x10²³ molecules / 1 mole ) =
3.34x10¹⁶ molecules of aspirin are in a drop of bloodWhat takes place in a cell's mitochondria ?
A.cellular respiration
B.DNA replication
C.protein synthesis
D.photosynthesis
I NEED HELP ASAP!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
c
Explanation:
the mitochodria is the protien power house of the cell
Inorganic compounds which are found in the earth are called: minerals vitamins synthetics cement
Answer:
Minerals
Explanation:
I looked it up on google. Thanks.
When 0.3 moles of acetylene is burned , total mole number of the products will be? a- 0.30 mol b-0.60 mol c-0.75 mol d-0.90 mol e- 1.2 mol
Answer:
d. 0.9 mol
Explanation:
On this case we have to start with the formula of acetylene:
[tex]C_2H_2[/tex]
Now we can write the chemical reaction of combustion:
[tex]C_2H_2~+~O_2~->~CO_2~+~H_2O[/tex]
The next step is to balance the reaction:
[tex]2C_2H_2~+~5O_2~->~4CO_2~+~2H_2O[/tex]
The molar ratio between [tex]C_2H_2[/tex] and [tex]CO_2[/tex] is 2:4, so:
[tex]0.3~mol~C_2_H_2\frac{4~mol~CO_2}{2~mol~C_2H_2}=0.6~mol~CO_2[/tex]
The molar ratio between [tex]C_2H_2[/tex] and [tex]H_2O[/tex] is 2:2, so:
[tex]0.3~mol~C_2_H_2\frac{2~mol~H_2O}{2~mol~C_2H_2}=0.3~mol~H_2O[/tex]
The total moles would 0.6 + 0.3=0.9 moles.
I hope it helps!
Question 11
A solution cannot dissolve any more solute even though only a small amount of solute has
been added to the solvent. This solution is
1. saturated and concentrated
2. unsaturated and dilute
3. saturated and dilute
4. unsaturated and concentrated
Answer:
Explanation:
B.) Saturated
A saturated solution is when the maximum amount of solute that could be dissolved in that solvent volume at that temperature and pressure has been dissolved, adding more solute beyond this point would lead to the additional solute not dissolving in the solvent. When the maximum solute concentration in the solution that can be dissolved has been reached the solution is said to be saturated.
Hope This Helps??
What does the period number tell about the energy levels occupied by electrons in an atom?
Answer:
Number of energy levels that the element has.
Explanation:
The period number (n) is the outer energy level that is occupied by electrons. The period number that an element is in, is the number of energy levels that the element has.
Please help!! This is for chem!!!
Answer:
1st answer choice
P4O6 + 2 O2 -> P4O10
Explanation:
You need to cancel out reactants and products that are the same.
P4 cancels out because it appears in both reactants and products
We get 2 O2 in the reactants because 5-3= 2
Thus, answer choice 1 is correct.
which of these methods could are used to separate an insoluble solid and soluble solid
Answer:
To separate an insoluble solid from a soluble solid: Mixing the mixture with water, filtering out the insoluble solid, and then evaporating the water to isolate the soluble solid.
Explanation:
Answer:
Mixing the mixture with water, filtering out the insoluble solid, and then evaporating the water to isolate the soluble solid
The atomicity of bromine is
Answer:
So, the atomicity of noble gases is 1. Example. ... So, the atomicity of hydrogen, nitrogen, oxygen, chlorine, bromine and iodine is 2 each.
Explanation:
So, the atomicity of noble gases is 1. Example. ... So, the atomicity of hydrogen, nitrogen, oxygen, chlorine, bromine and iodine is 2 each.
could help
The name given to the substance formed when a liquid is miscible in another liquid.
Answer:
Solute
Explanation:
Can someone help me with my chemistry homework?!
Answer:
calculate grams and use mole ratio lol
Explanation:
Answer:
Explanation:
23
a. 24.5 g of ammonia NH3 = how many moles of ammonia?
.b How many molecules of ammonia is that from 22.a.?
describes the forces that exist
between a liquid and different
molecules,
A Adhesion
B. Repulsion
C. Condensation
D. Cohesion
98-2000 Anths Charpentine A Nights Arsenal
Answer:
i just answered this and its a
Explanation:
I NEED HELP PLEASE, THANKS SO MUCH! :)
Solids, liquids and gases are the three most commonly accepted phases of matter. Explain the properties of each phase, including their relative energy.
Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the way the particles inside them differ.
In a gas, the molecules are spread wide apart and moves freely at high speeds
In a liquid, the more closer to each other and will vibrate or slip past each other
In a solid, the molecules are tightly packed, making no room for each other and harder to move. These molecules vibrate and jiggle but, don't move
How many grams of chlorine gas are needed to react with 3.5 liters of a 1.7 molar
potassium bromide solution?
Cl2 + 2 KBr - 2 KCl + Br2
Answer: 211.2 grams
Explanation:
To calculate the number of moles for given molarity, we use the equation:
[tex]\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution in L)}}[/tex] .....(1)
Molarity of [tex]KBr[/tex] solution = 1.7 M
Volume of solution = 3.5 L
Putting values in equation 1, we get:
[tex]1.7M=\frac{\text{Moles of}KBr}{3.5L}\\\\\text{Moles of }KBr=\{1.7mol/L\times 3.5L}=5.95moles[/tex]
The balanced chemical reaction is:
[tex]Cl_2+2KBr\rightarrow 2KCl+Br_2[/tex]
According to stoichiometry:
2 mole of KBr requires = 1 mole of [tex]Cl_2[/tex]
5.95 moles of KBr requires = [tex]\frac{1}{2}\times 5.95=2.975[/tex] moles of [tex]Cl_2[/tex]
Mass of [tex]Cl_2=moles\times {\text {Molar mass}}=2.975mol\times 71g/mol=211.2g[/tex]
Thus 211.2 grams of chlorine gas are needed to react with 3.5 liters of a 1.7 molar potassium bromide solution
The sodium salt, NaA, of a weak acid is dissolved in water; no other substance is added. Which of these statements (to a close approximation) is true?
Answer:
Your question is somewhat poorly worded, even so what I can contribute is the statement is false, since the salt is sodium chloride, where its severe chemical formula NaCl, is a SALT not an acid and if it dissolves in water, seriously the solute of a solution, where water plays the role of the solvent
Explanation:
Sodium chloride is a binary salt, very easy to dissolve in water, it is also called the famous table salt, since it can be ingested in food even though it is not so recommended against high blood pressure conditions.
Of the reactions listed below, which one is NOT a combination reaction? A) C + O2 => CO2 B) 2Mg + O2 => 2MgO C) 2N2 + 3H => 2NH3 D) CaO + H2O => Ca(OH)2 E) 2CH4 + 4O2 => 2CO2 + 4H2O
Answer:
E
Explanation:
A combination reaction is one in which two elements or two compounds react to give a new single compound
Hence, what we are expecting on the reactant side is only a single product and not a mixture of products
For the first reaction, we had two elements giving a single product
For the second reaction, we had same
For the third, we had same
For the fourth, we had two compounds reacting to give a singe new product
While in the last, we had two different products which means it does not follow the definition of a combination reaction and that makes it our answer
Which of the following statements is true?
A. Every organism is made of different elements.
B. All living things are made of the same elements.
C. Every species is made of different elements.
D. All matter is made of the same 10 elements.
Answer:
Every species is made of different elements.
Explanation:
Living organisms are classified by their species. Species refer to a group of closely related individual organisms which are callable of interbreeding with each other and exchanging genetic material.
Member of a species have similar genetic make up and often look alike, it is the lowest taxonomic rank of closely related organisms.
Members of of different species are often composed of different elements. Since individual organisms are members of a given species, we can say that every species of organisms are made up of different elements.
Which is the electron configuration for bromine?
Answer:
first answer
Explanation:
atomic number of bromine is 35
[tex]1{s}^{2} 2 {s}^{2} 2 {p}^{6} 3 {s}^{2} 3 {p}^{6} 3 {d}^{10} 4 {s}^{2} 4 {p}^{5} [/tex]
Answer:
1s22s22p63s23p64s23d104p5
Explanation:
;)
If the mass of a certain block is 500g, what is the weight of the block?
______________________________
Solution,
Mass=500g =500/1000=0.5 kg
gravity(g)=9.8m/s^2
Now,
Weight= m*g
= 0.5*9.8
=4.9 N
So the weight of the block is 4.9 Newton
hope it helps...
Good luck on your assignment
_______________________
How are scientific questions answered?
O A. By predicting a solution to the question
O B. By reading books about the question
O C. By asking other scientists what they think
D. By observing and measuring the physical world
Answer:
D
Explanation:
Scientists always perform tests and observe and measure in the physical world to prove their points or answer their questions.
1.)A strong acid solution requires 3.2 grams of sulfuric acid (H2SO4). How many molecules of sulfuric acid are in the solution?
2.) While measuring out the sulfuric acid you accidentally spilled some of it! Before trying to clean it up you put some baking soda (NaHCO3) on to it neutralize it. If you scatter 7.8 g of baking soda on the acid how many moles of baking soda have you used?
Answer: 1. There are [tex]0.20\times 10^{23}[/tex] molecules of sulfuric acid in the solution.
2. 0.093 moles of baking soda have been used.
Explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.
To calculate the moles, we use the equation:
1. [tex]\text{Number of moles of sulpfuric acid}=\frac{\text{Given mass}}{\text {Molar mass}}=\frac{3.2g}{98g/mol}=0.033moles[/tex]
1 mole of [tex]H_2SO_4[/tex] contains = [tex]6.023\times 10^{23}[/tex] molecules of sulfuric acid
Thus mole of [tex]H_2SO_4[/tex] contains = [tex]\frac{6.023\times 10^{23}}{1}\times 0.033=0.20\times 10^{23}[/tex] molecules of sulfuric acid
There are [tex]0.20\times 10^{23}[/tex] molecules of sulfuric acid in the solution.
2. [tex]\text{Number of moles of baking soda}=\frac{\text{Given mass}}{\text {Molar mass}}=\frac{7.8g}{84g/mol}=0.093moles[/tex]
0.093 moles of baking soda have been used.
Only purple flowers result from a cross between purple-flowered pea plants and white-flowered pea plants. What does this indicate?
Purple flowers are a mutation
Purple flowers are recessive
Purple flowers are dominant
Purple flowers are hybrid
Answer:
Purple flowers are dominant
Explanation:
Am I correct? Because I’m kinda in between answers
Answer:
yh you are correct. the pattern is correct! :)
Answer:
Yep! :)
Explanation:
Rapid, uncontrolled cell division of abnormal cells is characteristic of
sex cells
cancer
growth
sexual reproduction
Which statement accurately describes the movement of Earth’s plates due to convection currents?
Answer:
Volcanic eruptions.
Why would it be more comfortable to walk on hot beach sand in flip-flops
than without them?
O A. Thermal insulation is blocked by the flip-flops.
B. Convection warming is blocked by the flip-flops.
C. Radiation warming is blocked by the flip-flops.
O D. Thermal conduction is blocked by the flip-flops.
Answer:
D. Thermal conduction is blocked by the flip-flops.
Explanation:
Convection is a process of heat transfer which involves fluids( liquid or gas). This however rules convection out of the answer.
Radiation involves heat transfer from the sun to bodies on earth.
Conduction involves heat transfer between two solid bodies. Hot beach sand and flip-flops are solid bodies which validates thermal(heat) conduction.
