Which statements below describe the law of conservation of mass? *
1 point
mass cannot be created or destroyed.
mass is conserved by decreasing the number of atoms in the product.
the mass of the reactants must equal the mass of the products in a chemical reaction.
mass can be destroyed if you have a chemical reaction that isn't in a closed container.

Why is silver chloride is an ionic compound

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Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .