If the amount of water vapor in the air remained constant, but the air temperature increased throughout the day, the relative humidity would

Decrease

Explanation:

Relative humidity is both a function of water vapor in the air and temperature. By increasing the temperature, you increase the amount of water vapor the air can hold. This is because hot air has the ability to hold more moisture than cool air. Therefore, as the temperature increases, the relative humidity is bound to reduce.

given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g