June 2024 Chemistry Regents Questions 41-50 Question Preview (ID: 63425)

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What is the amount of heat absorbed to completely melt 26.2 grams of H2O(s) at 0°C?

a) 8.75 X 10^3 J

b) 3.66 X 10^4 J

c) 5.92 X 10^4 J

d) 2.48 X 10^5 J

Which statement describes the average kinetic energy and the potential energy between minute 2 and minute 6?

a) Average kinetic energy and potential energy both decrease.

b) Average kinetic energy and potential energy both remain constant.

c) Average kinetic energy remains constant and potential energy increases.

d) Average kinetic energy remains constant and potential energy decreases.

Which formula represents a saturated hydrocarbon?

a) 1

b) 2

c) 3

d) 4

Which type of organic reaction is represented by this equation?

a) addition

b) polymerization

c) fermentation

d) substitution

In which compound does sulfur have an oxidation state of +4?

a) K2S

b) CaS

c) SO2

d) SO3

Which solution is the best conductor of electricity?

a) 0.0010 M CaCl2(aq)

b) 0.010 M CaCl2(aq)

c) 0.10 M CaCl2(aq)

d) 1.0 M CaCl2(aq)

What is the formula of the missing product X?

a) SrO

b) SrO2

c) Sr(NO2)2

d) Sr(NO3)2

The water molecule acts as an acid because it

a) accepts a hydrogen ion

b) accepts a hydroxide ion

c) donates a hydrogen ion

d) donates a hydroxide ion

Which nuclear equation represents beta decay?

a) 1

b) 2

c) 3

d) 4

Which type of nuclear reaction do these equations represent?

a) Both A and B are fission.

b) Both A and B are fusion.

c) A is fission and B is fusion.

d) A is fusion and B is fission.

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