31-40

Question 1

Which is classified as a type of acid base reaction that produces salt?

A. Combination
B. Decomposition
C. Hydrolysis
D. Neutralization

Answer 1

D. Neutralization

Question 2

Which of the following determines the strength of an acidic solution?

A. Litmus paper that turns red
B. Litmus paper that turns blue
C. Measured pH value equal to 7
D. Measured pH value less than 7

Answer 2

D. Measured pH value less than 7

Question 3

What type of bond forms between nitrogen and oxygen, and why?

A. Ionic, because electrons are shared
B. Covalent, because electrons are shared
C. Ionic, because electrons are transferred
D. Covalent, because electrons are transferred

Answer 3

B. Covalent, because electrons are shared

Question 4

Which of the following atoms are cation

A. 14 protons 14 neutrons 18 electrons
B. 34 protons 45 neutrons 36 electrons
C. 35 protons 44 neutrons 35 electrons
D. 82 protons 125 neutrons 78 electrons

Answer 4

D. 82 protons 125 neutrons 78 electrons

Question 5

A spoonful of sugar is added to a hot cup of tea. All the sugar dissolves. How can the resulting solution be described?

A. Saturated and homogeneous
B. Saturated and heterogeneous
C. Unsaturated and homogeneous
D. Unsaturated and heterogeneous

Answer 5

C. Unsaturated and homogeneous

Question 6

In the following single-replacement reaction - ….. replaces ….
Cl2 + 2NaI —> 2NaCL + I2

A. Sodium and iodine
B. Chlorine and iodine
C. Chlorine and sodium
D. Sodium and chlorine

Answer 6

B. Chlorine and iodine

Question 7

What type of reaction is described by the following equation?
ZnBr2(aq) + 2KOH(aq) —> Zn(OH)2(s) + 2KBr(aq)

A. Synthesis
B. Decomposition
C. Single-replacement
D. Double-replacement

Answer 7

D. Double-replacement

Question 8

…. is dependent not only on the temperature, but also on the amount of substance available.

A. Condensation
B. Deposition
C. Evaporation
D. Melting

Answer 8

C. Evaporation

Question 9

During which of the following phase changes will the cohesion between the particles in a substance decrease?

A. Condensation
B. Deposition
C. Freezing
D. Vaporization

Answer 9

D. Vaporization

Question 10

In which state of matter are the intermolecular forces between particles in a substance the strongest?

A. Gas
B. Liquid
C. Plasma
D. Solid

Answer 10

D. Solid