A 23.0 g sample of metal is heated to 100.0°C. A calorimeter contains 75.0 ml of water at 18.5°C. When the sample is added to the calorimeter, the sample and water reach thermal equilibrium at 21.1°C. What is the identity of the metal? A) Mn
B) V
C) Fe
D) N

the answer is alpha particles hope i you

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.

hypostyle hall;