Directions for the Equation Set: QUESTIONS 1-4:Write and balance the symbolic eq

Question

Directions for the Equation Set: QUESTIONS 1-4:Write and balance the symbolic equations.

FOR QUESTION 5-6: Solve the problems completely.

1. sodium bicarbonate reacts with hydrochloric acid _____________________________________________________________________________

2. mercury reacts with oxygen _____________________________________________________________________________

3. hydrofluoric acid reacts with calcium hydroxide _____________________________________________________________________________

4. propane (C3H8(g)) is burned in air (combustion) _____________________________________________________________________________

5. Given the following reaction:

CH4(g) + O2(g) ? CO2(g) + H2O(g) Balance this reaction and then determine the heat of reaction.

6. Given the following chemical reaction:

CaCl2(aq) + AgNO3(aq) ? Ca(NO3)2(aq) + AgCl(s)

a. Balance the reaction.

b. If 18.0 g. of silver nitrate react with 21.5 g. of calcium chloride, determine the mass of the calcium nitrate and the molecules of the silver chloride formed in reaction

Explanation / Answer

1)

When hydrochloric acid reacts with sodium bicarbonate, a salt forms along with carbon dioxide and water. all carbonates react with acid in this way. The equation describing this reaction is:

HCl + NaHCO3 ? NaCl + H2CO3H2CO3 ? CO2 + H2O.

2)

Mercury is a metal and reacts similarly to the other metals in the d-block. Mercury can react to form conventional salts in the +1 or +2 oxidation states but it can also react with organic compounds to form organomercury compounds which are highly toxic.

SOME REACTIONS OF MERCURY

Mercury reacts with oxygen at 350

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