Is formed when carbon dioxide dissolves in rainwater, and this mildly reactive substance aids chemical weathering. clay hydrochloric acid limestone carbonic acid

The answer is carbonic acid.

That is carbonic acid is formed when carbon dioxide dissolves in rainwater, and this mildly reactive substance aids chemical weathering.

The reason for rain water being acidic, is that CO₂  from air dissolves in it. And that dissolving forms carbonic acid that aids chemical weathering.

mass of water is 7.43 g

Explanation:

q = mc∆T

qsteam = 100 g × 1.864 J/(g °C) × (110 – 100) °C = 1864 J

qwater = mwater× 4.184 J/(g °C) × (95 – 35) °C = mwater× 251.04 J/g = qsteam = 1864 J

mwater = 1864 J / 251.04 J/g = 7.43 g