Chemical Equations Test Review

Chemical Equations Test Review ***This list is NOT all-inclusive. Be sure to review all notes, DQs, labs and homework. Vocabulary Review 1. activity series 5. decomposition 9. reactant 2. chemical equation 6. double-replacement 10. single-replacement 3. coefficient 7. precipitate 11. synthesis 4. combustion 8. product Concept Review Learning Target Students will write a balanced chemical equation. 1. List the evidence/indications that a chemical reaction occurred. What is the only way to know for certain that a chemical reaction occurred?

2. What law must be obeyed in all chemical equations? How do we show that we satisfied the law?

3. Balance each of the following reactions. a. ____H2O(l)  ____H2(g) + ____O2(g) b. ____NH3(g) + ____O2(g)  ____NO(g) + ____H2O(l) c. ____C3H8(g) + ____O2(g)  ____CO2(g) + ____H2O(g) 4. Write balanced chemical equations for the following: a. Solid zinc(II) sulfide reacts with oxygen gas to form solid zinc(II) oxide and sulfur dioxide gas .

b. Aqueous calcium nitrate and water are produced by the reaction of aqueous nitric acid and solid calcium hydroxide

c. Solid lead(II) carbonate breaks apart to form solid lead(II) oxide and carbon dioxide gas.

Learning Target

Students will classify chemical reactions as: synthesis, decomposition, single-replacement, double-replacement, or combustion. 5. Classify the types of reactions in problem number 3 and 4.

Learning Target Students will write/predict the products of various chemical reactions given the reactants. 6. Write balanced equations for the synthesis reaction that occurs between the following elements. a. solid francium and nitrogen gas

b. solid calcium and solid iodine

c. solid barium and solid phosphorus

d. solid gallium and solid selenium

7. Write a balanced equation for the combustion of propane.

8. Write a balanced equation for the combustion of methane.

9. Use the activity series on age 286 to predict whether the following reactions will occur. Write the product for the reactions that will occur. If the reaction does not occur, write “no reaction.”. If a transition metal is in a compound, make it 2+. a. Ni(s) + CuCl2(aq)  b. Cl2(g) + KI(aq)  c. Ag(s) + NaCl(aq)  10. A solution of magnesium chloride is added to a solution of silver(I) nitrate. Write a balanced chemical equation, including states of matter.

11. A solution of potassium carbonate is added to a solution of iron(III) nitrate. Write a balanced chemical equation, including states of matter.