Ok true or false 1. plants obtain their energy directly from the sun
2. photosynthesis takes place inside the chloroplast
3. plants take in carbon dioxide and change it to oxygen
4. carbon dioxide and water are absorbed during photosynthesis
5. plants breathe by inhaling carbon dioxide and exhaling oxygen
true or false

1.True

2.True

3.True

4. True

5. True

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.