Question

2 multiple choice 2 points
which of the following is not a reaction type?
radical
combination
decomposition
single displacement
3 multiple choice 2 points
answer the question based upon the reaction below:
$(nh_{4})_{2}cro_{4}(aq)+2agno_{3}(aq)->ag_{2}cro_{4}(s)+2nh_{4}no_{3}(aq)$
which substance is the precipitate?
a. $(nh_{4})_{2}cro_{4}(aq)$
b. $2agno_{3}(aq)$
c. $ag_{2}cro_{4}(s)$
d. $2nh_{4}no_{3}(aq)$

Explanation:

• For question 2:
• Combination, decomposition, and single displacement are common reaction types.
• Radical refers to a species with an unpaired electron, not a reaction type.
• For question 3:
• In a chemical reaction, a precipitate is an insoluble solid formed.
• The notation (s) indicates a solid. Among the options, \(Ag_2CrO_4(s)\) is the solid product.

Answer:

1. Radical
2. C. \(Ag_2CrO_4(s)\)