Hello there,
The answer to your question is:
C. Zinc
Hope this answer helps you.
Gay-Lussac's law gives the relationship between pressure and temperature of gas. For a fixed amount of gas, pressure is directly proportional to temperature at constant volume.
P/T = k
where P - pressure , T - temperature and k - constant

parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation
substituting the values in the equation

T = 4342 K
initial temperature was 4342 K
Answer:
So the molar mass of C4,H10 is
58.12g mole -1
Answer:
Rb
Explanation:
This is because they are in the same group which means they share similar properties.