How much heat is given off when 32g liquid methanol (ch3oh) at its freezing point changes to solid methanol? (methanol hf=3.16 kj/mol)

a)1.58 kj
b)3.16 kj
c)0.79 kj
d) 0.18 kj

Aside from human impact, which of the following causes less water vapor production over a small area? (2 pderivartin

Why does a plastic bottle that is sealed at a high altitude change it’s shape when taken to lower altitude

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.