Question 1

How many atoms are in 1.00 mol of Mg?

Accepted Answer

A)  24.3 
B)  6.02 × 1023 
C)  24.3 × 6.02 × 1023 
D)  24.3 × 1023 
A)  24.3 
B)  6.02 × 1023 
C)  24.3 × 6.02 × 1023 
D)  24.3 × 1023

Question 2

An ionic compound composed of a cation other than H+ and an anion other than OH- is called a(n)

Accepted Answer

A)  salt. 
B)  precipitate. 
C)  conjugate base. 
D)  electrolyte. 
A)  salt. 
B)  precipitate. 
C)  conjugate base. 
D)  electrolyte.

Question 3

A solution with a pH of 1 is

Accepted Answer

A)  strongly acidic. 
B)  weakly basic. 
C)  strongly basic. 
D)  weakly acidic. 
A)  strongly acidic. 
B)  weakly basic. 
C)  strongly basic. 
D)  weakly acidic.

Question 4

A substance that speeds up a chemical reaction but is not consumed is a(n) ______________.

Accepted Answer

The answer of A substance that speeds up a chemical...

Question 5

What type of reaction gives CO2 and H2O as the only products?

Accepted Answer

A)  Complete hydrocarbon combustion 
B)  Acid-base reaction 
C)  Acid-carbonate reaction 
D)  Single-replacement, with an acid and an active metal 
A)  Complete hydrocarbon combustion 
B)  Acid-base reaction 
C)  Acid-carbonate reaction 
D)  Single-replacement, with an acid and an active metal

Question 6

In order, from top to bottom, in the activity series come Li, K, Ba, Na, Al, Zn, Sn, and Pb. Therefore,

Accepted Answer

A)  tin is more active than lead. 
B)  zinc is more active than aluminum. 
C)  potassium is more active than lithium. 
D)  sodium is more active than barium. 
A)  tin is more active than lead. 
B)  zinc is more active than aluminum. 
C)  potassium is more active than lithium. 
D)  sodium is more active than barium.

Question 7

The coefficients needed to balance the equation Ga + Br2 → GaBr3 are, respectively,

Accepted Answer

A)  4, 3, and 2. 
B)  2, 3, and 2. 
C)  1, 3, and 2. 
D)  2, 1, and 2. 
A)  4, 3, and 2. 
B)  2, 3, and 2. 
C)  1, 3, and 2. 
D)  2, 1, and 2.

Question 8

Complete and balance the equation: Zn + AgNO3(aq) → ____________________

Accepted Answer

Zn + 2AgNO₃

Question 9

If two clear solutions are mixed and solid particles form, the particles are called a(n) ______________.

Accepted Answer

The answer of If two clear solutions are mixed and...

Question 10

When the equation H2O + NO2 → NO + HNO3 is balanced, the sum of all the coefficients (both written and "understood") is ______________.

Accepted Answer

7 (coeffic

Question 11

Reacting an acid with a base gives water and

Accepted Answer

A)  a carbonate. 
B)  ammonia. 
C)  carbon dioxide. 
D)  a salt. 
A)  a carbonate. 
B)  ammonia. 
C)  carbon dioxide. 
D)  a salt.

Question 12

Complete and balance the equation: Mg + HC2H3O2 → _____________________

Accepted Answer

Mg + 2HC₂H₃

Question 13

Balance the chemical equation: PCl5 + H2O → H3PO4 + HCl

Accepted Answer

PCl₅ + 4H

Question 14

What basic type of reaction is illustrated by the general equation A + BC → B + AC?

Accepted Answer

A)  Combination 
B)  Decomposition 
C)  Double-replacement 
D)  Single-replacement 
A)  Combination 
B)  Decomposition 
C)  Double-replacement 
D)  Single-replacement

Question 15

When an acid reacts with a carbonate or hydrogen carbonate, the products are ______________, carbon dioxide, and a salt.

Accepted Answer

The answer of When an acid reacts with a carbonate...

Question 16

What basic type of reaction is illustrated by the general equation A + B → AB?

Accepted Answer

A)  Combination 
B)  Decomposition 
C)  Double-replacement 
D)  Single-replacement 
A)  Combination 
B)  Decomposition 
C)  Double-replacement 
D)  Single-replacement

Question 17

The energy necessary to start a chemical reaction is called the ______________ energy.

Accepted Answer

A)  exothermic 
B)  activation 
C)  endothermic 
D)  combustion 
A)  exothermic 
B)  activation 
C)  endothermic 
D)  combustion

Question 18

When the equation Sb2S3 + HCl → SbCl3 + H2S is balanced, the total of all the coefficients (both written and "understood") is

Accepted Answer

A)  10. 
B)  14. 
C)  9. 
D)  12. 
A)  10. 
B)  14. 
C)  9. 
D)  12.

Question 19

A balanced chemical equation will have the same ______________ on each side.

Accepted Answer

A)  number of moles 
B)  number of molecules 
C)  mass of each compound 
D)  number of atoms of each element 
A)  number of moles 
B)  number of molecules 
C)  mass of each compound 
D)  number of atoms of each element

Question 20

In the activity series, Zn is more active than Pb. This means that

Accepted Answer

A)  Zn is a better catalyst than Pb. 
B)  Zn loses its electrons more easily than Pb. 
C)  Pb is more readily oxidized than Zn. 
D)  none of these 
A)  Zn is a better catalyst than Pb. 
B)  Zn loses its electrons more easily than Pb. 
C)  Pb is more readily oxidized than Zn. 
D)  none of these

Exam 13: Chemical Reactions

How many atoms are in 1.00 mol of Mg?

An ionic compound composed of a cation other than H+ and an anion other than OH- is called a(n)

A solution with a pH of 1 is

A substance that speeds up a chemical reaction but is not consumed is a(n) ______________.

What type of reaction gives CO2 and H2O as the only products?

In order, from top to bottom, in the activity series come Li, K, Ba, Na, Al, Zn, Sn, and Pb. Therefore,

The coefficients needed to balance the equation Ga + Br2 → GaBr3 are, respectively,

Complete and balance the equation: Zn + AgNO3(aq) → ____________________

If two clear solutions are mixed and solid particles form, the particles are called a(n) ______________.

When the equation H2O + NO2 → NO + HNO3 is balanced, the sum of all the coefficients (both written and "understood") is ______________.

Reacting an acid with a base gives water and

Complete and balance the equation: Mg + HC2H3O2 → _____________________

Balance the chemical equation: PCl5 + H2O → H3PO4 + HCl

What basic type of reaction is illustrated by the general equation A + BC → B + AC?

When an acid reacts with a carbonate or hydrogen carbonate, the products are ______________, carbon dioxide, and a salt.

What basic type of reaction is illustrated by the general equation A + B → AB?

The energy necessary to start a chemical reaction is called the ______________ energy.

When the equation Sb2S3 + HCl → SbCl3 + H2S is balanced, the total of all the coefficients (both written and "understood") is

A balanced chemical equation will have the same ______________ on each side.

In the activity series, Zn is more active than Pb. This means that

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An ionic compound composed of a cation other than H⁺ and an anion other than OH^- is called a(n)

What type of reaction gives CO₂ and H₂O as the only products?

The coefficients needed to balance the equation Ga + Br₂ → GaBr₃ are, respectively,

Complete and balance the equation: Zn + AgNO₃(aq) → ____________________

When the equation H₂O + NO₂ → NO + HNO₃ is balanced, the sum of all the coefficients (both written and "understood") is ______________.

Complete and balance the equation: Mg + HC₂H₃O₂ → _____________________

Balance the chemical equation: PCl₅ + H₂O → H₃PO₄ + HCl

When the equation Sb₂S₃ + HCl → SbCl₃ + H₂S is balanced, the total of all the coefficients (both written and "understood") is