What are the coefficients that will balance the following equation?

1. 1 What are the coefficients that will balance the following equation? Rb + RbNO3 --> Rb2O + N2 A 10,1,6,1 B 2,2,3,1 C 1,2,6,1 D 10,2,6,1

2. 2 What are the coefficients that will balance the equation below? H3PO4 + Mg(OH)2 --> Mg3(PO4)2 + H2O A 2,3,1,6 B 2,4,2,6 C 4,3,2,12 D 1,3,2,12

3. 3 Write out the correct chemical equation for the word equation given below. Aluminum hydroxide + Carbonic acid --> Aluminum carbonate + water A AlOH + H2CO3 --> AlCO3 + H2O B Al(OH)3 + H2CO3 --> Al2(CO3)3 + H2O C AlO3H3 + H2CO3 --> Al2C3O9 + H2O D Al(OH)3 + H2CO3 --> AlCO3 + H2O

4. 4 Identify the type of reaction for the following chemical equation. 2H2 + O2 --> 2H2O A sythesis B decomposition C single-replacement D double-replacement

5. 5 What type of reaction is the following chemical equation? HCl + NaOH --> NaCl + H2O A synthesis B decomposition C single-replacement D double-replacement

6. 6 What type of reaction is the following chemical equation? HNO3 --> H2O + O2 + NO2 A sythesis B decomposition C single-replacement D double-replacement

7. 7 What type of reaction is the following chemical equation? K + B2O3à K2O + B A synthesis B decomposition C single-replacement D double-replacement

8. 8 Predict the products for the following chemical equation. Ca(OH)2 + HNO3à A Ca(NO3)2+ H2O B CaNO3+ H2O C CaHNO3 + OH D Ca(NO3)3+ H2O

9. 9 Predict the products of the following chemical reaction. Sodium + Chlorine --> A Na + Cl2 B Na2 + Cl C NaCl D NaCl2

10. 10 How many grams of calcium carbonate are required to prepare 50.0g of calcium oxide? CaCO3 --> CaO + CO2 A 0.892 g B 56 g C 100 g D 89 g