1) CuCl2+H2S—>CuS+2HCl
Double replacement
2)ZnCO3—>ZnO+CO2 (already balanced)
Decomposition
3)2Zn+2HCl—>2ZnCl+H2
Single replacement
When a molecule of oxygen (O2) is combined with an atom of carbon (C), they form CO2, or carbon dioxide. The carbon and oxygen are the reactants in this chemical reaction; the CO2 is the product.
Gay- Lussacs law states that the pressure of a gas is directly proportional to temperature for a fixed amount of gas at constant volume.
therefore 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
T1 - temperature in kelvin - 110 °C + 273 = 383 K
T2 - 65.0 °C + 273 = 338 K
substituting these values in the equation

P = 19.9 psi
new pressure is 19.9 psi
Answer:
FLUORINE
Explanation:
It has 5 electrons In Its 2P shell!
Convection is the transfer of heat/thermal enrgy by the movement of a fluid(either a liquid or gas).