How many liters of oxygen are necessary for the combustion of 7.01 g of Calcium, assuming that the reaction occurs at STP? The balanced equation is: 2Ca + O2 --> 2CaO

Give your answer with 2 decimal places.

explanation:

since this is put under health, i would define "ethical (medical) behavior" the way the oath for doctors is recited.   "first do no harm."

but the term in general means when given a choice between right and wrong, we should always choose right. if we do, then we are practicing ethical behavior.

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.

elements make up everything, and they combine to make compounds.

the answer is c