When 50.0 ml of 0.100 m agno, is combined with 50.0 ml of 0.100 m hchin a conce-cup cave the temperature changes from 23.4 c to 24.21 c. calculate the heat of reaction. (ans: -68 kj/mol)

in chemistry, a solution’s concentration is how much of a dissolvable substance, known as a solute, is mixed with another substance, called the solvent. the standard formula is c = m/v, where c is the concentration, m is the mass of the solute dissolved, and v is the total volume

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.

l dont know l am s sorry