Why is yeast a dependent variable when you are using it for baking and for the dough to rise.

When you perform this reaction, what could remain at the end of the reaction? check all that apply. excess reactant aqueous copper chloride excess reactant aluminum oxygen product solid copper carbon dioxide product aqueous aluminum chloride water

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Chemistry worksheet - i am not sure what they are asking for exactly?