Chemical Reaction Types / Reaction Rates

25 Questions | By Milton_glenn | Updated: Mar 21, 2022 | Attempts: 183

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1.

The process in which one or more substances change to make one or more new substances is called?
- A.
  
  Chemical change
- B.
  
  Chemical reaction
- C.
  
  Chemical process
- D.
  
  Chemical explosion
2.

How can you tell when a chemical reaction is taking place? (check all that apply)
- A.
  
  A gas forms
- B.
  
  Substance turns to a liquid
- C.
  
  Energy is given off
- D.
  
  There is a color change
3.

Is the chemical equation balanced? Na + Cl₂ -------------------> NaCl
- A.
  
  Yes
- B.
  
  No
4.

Is the chemical equation balanced? 3Mg + N₂ -------------> Mg₃N₂
- A.
  
  Yes
- B.
  
  No
5.

Which of the following types of reactions results in a single product?
- A.
  
  A synthesis reaction
- B.
  
  A decomposition reaction
- C.
  
  A combustion reaction
- D.
  
  A single replacement reaction
- E.
  
  A double replacement reaction
6.

Which of the following is NOT an observable clue that a chemical reaction has occurred?
- A.
  
  Release of a gas
- B.
  
  Odor change
- C.
  
  Precipitate formation
- D.
  
  Mixing two reactants
7.

The __________________________________________ says that mass cannot be created or destroyed.
8.

CO_2(g) + H₂O_(l) → H₂CO_3(aq)
- A.
  
  Synthesis
- B.
  
  Decomposition
- C.
  
  Single replacement
- D.
  
  Double replacement
9.

2 Na_(s) + Cl_2(g) → 2NaCl_(s)
- A.
  
  Synthesis
- B.
  
  Decomposition
- C.
  
  Single replacement
- D.
  
  Double replacement
10.

Cl_2(g) + 2NaBr_(aq) → 2NaCl_(aq) + Br_2(l)
- A.
  
  Synthesis
- B.
  
  Decomposition
- C.
  
  Single replacement
- D.
  
  Double replacement
11.

2NaCl_(l) → 2Na_(s) + Cl_2(g)
- A.
  
  Synthesis
- B.
  
  Decomposition
- C.
  
  Single replacement
- D.
  
  Double replacement
12.

Zn_(s)+ 2HCl_(aq)→ ZnCl_2(aq)+ H_2(g)
- A.
  
  Synthesis
- B.
  
  Decomposition
- C.
  
  Single replacement
- D.
  
  Double replacement
13.

2KClO_3(s) → 2KCl_(s) + 3O_2(g)
- A.
  
  Synthesis
- B.
  
  Decomposition
- C.
  
  Single replacement
- D.
  
  Double replacement
14.

CaCO_3(s)→ CaO_(s)+ CO_2(g)
- A.
  
  Synthesis
- B.
  
  Decomposition
- C.
  
  Single replacement
- D.
  
  Double replacement
15.

2Mg_(s) + O_2(g) → 2MgO_(s)
- A.
  
  Synthesis
- B.
  
  Decomposition
- C.
  
  Single replacement
- D.
  
  Double replacement
16.

Ba(NO₃)_2(aq)+ K₂SO_{4(aq) -->} BaSO_4(s) + 2KNO_3(aq)
- A.
  
  Synthesis
- B.
  
  Decomposition
- C.
  
  Single replacement
- D.
  
  Double replacement
17.

Fe_(s)+ CuSO_4(aq) → FeSO_4(aq) + Cu_(s)
- A.
  
  Synthesis
- B.
  
  Decomposition
- C.
  
  Single replacement
- D.
  
  Double replacement
18.

C_(s) + O_2(g) → CO_2(g)
- A.
  
  Synthesis
- B.
  
  Decomposition
- C.
  
  Single replacement
- D.
  
  Double replacement
19.

2P_(s) + 3Cl_2(g) → 2PCl_3(g)
- A.
  
  Synthesis
- B.
  
  Decomposition
- C.
  
  Single replacement
- D.
  
  Double replacement
20.

H₂SO₄ → H₂O_(l) + SO_3(g)
- A.
  
  Synthesis
- B.
  
  Decomposition
- C.
  
  Single replacement
- D.
  
  Double replacement
21.

Ca(OH)_2(s) → CaO_(s) + H₂O_(g)
- A.
  
  Synthesis
- B.
  
  Decomposition
- C.
  
  Single replacement
- D.
  
  Double replacement
22.

Which statement is true?
- A.
  
  The higher the temperature the slower the reaction
- B.
  
  The lower the temperature the faster the reaction
- C.
  
  The higher the concentration the slower the reaction
- D.
  
  The higher the concentration the faster the reaction.
23.

The breaking down of a compound into simpler substances is
- A.
  
  Displacement
- B.
  
  Synthesis
- C.
  
  Decomposition
- D.
  
  Endothermic
24.

What coefficients would balance the following equation? Sr + H₂O → Sr(OH)₂ + H₂
- A.
  
  1, 4, 2, 2
- B.
  
  2, 4, 2, 4
- C.
  
  1, 2, 1, 1
- D.
  
  It is already balanced
25.

Which has the greater surface area?
- A.
  
  A sugar cube (one teaspoon if measured)
- B.
  
  A teaspoon of powdered sugar
- C.
  
  They both have the same surface area.
- D.
  
  There is no way to answer this question.