2Al(s) + 3Cu²⁺(aq) → 2Al³⁺(aq) + 3Cu(s) Which particles are transferred in this reaction?

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.

Animals that reproduce sexually either do it through external or internal fertilization. read the following statement and decide if it is true or false. birds reproduce through external reproduction which is because the female will then be able to protect the egg.