Describe what you would expect to see when potassium is allowed to burn safely in a gas jar of bromine vapour. write a word and balanced chemical equation for this reaction.

The molecular formula for caffeine is cshion402. which of the following elements is not found in caffeine?

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.