A 500-gram block of solid cheese is melted in a pot. Which is most likely be the mass of the cheese after it is melted? pleas answer

Which statement describes covalent bases? they have hydroxide ions. they produce hydrogen ions. they are often amines. they are named the same as ionic compounds.

Consider the nuclear equation below. 239/94 pu—-> x+ 4/2 he. what is x?

Is a chemical message sent by another individual.