Question

A. Choose the correct answer. remains constant during a physical change. 1. The (a) mass (b) volume involved. (c) state (d) temperature 2. When reactants are mixed together to form products, there is (a) change of mass (b) no change of mass (c) a catalyst (d) change in temperature 3. Which of the following is a chemical formula for barium sulphate? (a) BeSO (b) Ba,SO (c) BaSO4 (d) Ba So 4. What happens when barium chloride and sodium sulphate react? (a) Baso, and NaCl are formed. (b) BaSO and NaCl are formed. (c) BaCl and Naso, are formed. (d) BaSo, and NaCl are formed. 4​

Answer 1

Answer:

1. (a) mass

2. (b) no change of mass

3. (c)BaSO4

4. (b) BaSO4 and NaCl are formed

Answer 2

Answer:

I know the answer

Explanation:

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