How many elements have to be present for a compound to form?

What do chemical equations show?

What is the oxidation number of Ni in NiO

Which element on the periodic table has chemical properties that are most similar to carbon?

Liquid hexane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water. suppose 41. g of hexane is mixed with 150. g of oxygen. calculate the maximum mass of water that could be produced by the chemical reaction.

Mixture one contains sand and water. mixture two contains salt and water. which method of separation could be used to obtain each of the required products from each mixture

What evidence of a chemical reaction might you see in dropping an Alka-Seltzer tablet into a glass of water?

State hess's law. how is it used

When the name of a molecule ends in - ose, the molecule is a

How many moles are in. 12 grams of gold.

When lithium reacts with bromine to form the compound LiBr, each lithium atom: (1) gains one electron and becomes a negativelycharged ion (2) gains three electrons and becomes a negativelycharged ion (3) loses one electron and becomes a