<u>Answer:</u> The bronsted acids for the given reaction are 
<u>Explanation:</u>
According to the Bronsted-Lowry conjugate acid-base theory:
- An acid is defined as a substance which looses or donates protons and thus forming conjugate base.
- A base is defined as a substance which accepts protons and thus forming conjugate acid.
For the given chemical equation:
For the forward reaction, 
looses 1 proton to form 
and thus acts as bronsted acid.
For the backward reaction, 
looses 1 proton to form 
and thus acts as bronsted acid
Hence, the bronsted acids for the given reaction are
The question is incomplete, complete questions is :
The first step in the industrial synthesis of hydrogen is the reaction of steam and methane to give synthesis gas, a mixture of carbon monoxide and hydrogen.
Kc= 4.7 at 1400K. A mixture of reactants and products at 1400 K contains 0.035 M , 0.050 M 
, 0.15 M 
, and 0.20 M 
.
In which direction does the reaction proceed to reach equilibrium?
A)The reaction will proceed from left to right to reach equilibrium.
B)The reaction will proceed from right to left to reach equilibrium.
Answer:
The correct answer is option A.
Explanation:
The equilibrium constant of the reaction at 1400 K =
Concentration of water = ![[H_2O]=0.035 M](https://tex.z-dn.net/?f=%5BH_2O%5D%3D0.035%20M)
Concentration of methane = ![[CH_4]=0.050 M](https://tex.z-dn.net/?f=%5BCH_4%5D%3D0.050%20M)
Concentration of carbon monoxide= ![[CO]=0.15 M](https://tex.z-dn.net/?f=%5BCO%5D%3D0.15%20M)
Concentration of hydrogen = ![[H_2]=0.20 M](https://tex.z-dn.net/?f=%5BH_2%5D%3D0.20%20M)
The reaction Quotient at 1400 K:
![Q_c=\frac{[CO][H_2]^3}{[H_2O][CH_4]}](https://tex.z-dn.net/?f=Q_c%3D%5Cfrac%7B%5BCO%5D%5BH_2%5D%5E3%7D%7B%5BH_2O%5D%5BCH_4%5D%7D)
So, the reaction will move in forward direction that is from left to right.
Subduction leads to composite, or above ground
Answer:
<em />
- <em>19. C₂H₂, HF, and H₂O₂ are molecular compounds</em>
<em />
- <em>20. The formula is CuSO₄. 5H₂O</em>
Explanation:
<u><em>Question 19.</em></u>
The three the chemical formulae in red, C₂H₂, HF, and H₂O₂, represent compounds because a compound is the chemical union of two or more atoms of different kind.
The chemical union is done either by ionic bonds or covalent bonds.
C, H, F, and O are all non-metal elements. Non-metals combine each other through covalent bonds, which is the bond in which electrons are shared to complete the valence shell. Ionic bonds are formed by the electrostatic atraction between ions of different charge and is typical of the bond between a metal and a non-metal.
Thus, all the bonds are covalent and the compounds are molecular compounds.
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<u><em>Question 20. </em></u>
<em></em>
You can determine the chemical formula using the molar masses of both Copper(II) sulfate and water.
- Molar mass of copper(II) sulfate: 159.609 g/mol
- Molar mass of water: 18.015 g/mol
Call n the number of water molecules in the molecular formula:
The ratio of water to copper(II) sulfate is:
- n × molar mass of water / molar mass of the compound
- n × 18.015 / (n × 18.015 + 159.609) = 36%
- 18.015n = 0.36(18.015n + 159.609)
- 18.015n = 6.4854n + 57.45924
Therefore, the formula of the hydrate contains 5 molecules of water and it is CuSO₄.5H₂O.
