Is a candle melting in the hot sun a chemical or a physical change?

How many chlorine atoms are on the products side of the reaction 2Al + 6HCl → 2AlCl3 + 3H2?

How many electrons are present if a bromine ion has a charge of - 1

Why is the piece of coal layered?

A mole of sulfur and a mole of aluminum will have the same

A 6.0-l vessel was found to contain 1.0 mol brcl3, 2.0 mol br2 and 6.0 mol cl2. what is the equilibrium constant, kc, for this equilibrium mixture for the reaction 2brcl3 (g) ? br2 (g) + 3cl2 (g) ?

Explain Charles law

2 H2 + O2 → 2 H2O What is the product of this chemical reaction

Which of the following is a chemical property? A.) Ability to burn B.) Mass C.) Density D.) All of the above

What is the density of rock if it has a mass of 25 g?

In a popular classroom demonstration, solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. part a write a balanced chemical equation for this reaction.