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Question (11)

QN004760

A student places 4 ice cubes in a bowl. After some time, all become water. Which process occurred?

(A) Freezing
(B) Condensation
(C) Melting
(D) Evaporation

Correct Answer: C

Explanation:

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Question (12)

QN004761

Which property is common to both liquid water and water vapour?

(A) Definite shape
(B) Ability to flow
(C) Fixed shape and volume
(D) Hardness

Correct Answer: B

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Question (13)

QN004762

If 100 mL of water freezes completely, the resulting substance is

(A) water vapour
(B) steam
(C) ice
(D) cloud

Correct Answer: C

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Question (14)

QN004763

A student heats ice and observes liquid water after 8 minutes. The change is called

(A) condensation
(B) melting
(C) freezing
(D) evaporation

Correct Answer: B

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Question (15)

QN004764

Which state of water occupies the entire available space in a container?

(A) Solid
(B) Liquid
(C) Gas
(D) Ice-water mixture

Correct Answer: C

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Question (16)

QN004765

An ice block has a mass of 500 g. After melting completely, the mass of water obtained is

(A) 250 g
(B) 400 g
(C) 500 g
(D) 550 g

Correct Answer: C

Explanation:

Mass remains conserved during melting.

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Question (17)

QN004766

A tray contains 12 identical ice cubes. If 5 melt completely, how many remain unmelted?

(A) 5
(B) 6
(C) 7
(D) 8

Correct Answer: C

Explanation:

12 − 5 = 7

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Question (18)

QN004767

A container has 200 mL liquid water. Half of it freezes. How much water remains liquid?

(A) 50 mL
(B) 100 mL
(C) 150 mL
(D) 200 mL

Correct Answer: B

Explanation:

Half of 200 mL = 100 mL

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Question (19)

QN004768

A student melts 80 g of ice and collects 80 g of water. This shows that

(A) mass decreases during melting
(B) mass increases during melting
(C) mass remains conserved
(D) water is created

Correct Answer: C

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Question (20)

QN004769

If 300 g of water is divided equally into 3 containers and frozen, each container will contain

(A) 50 g ice
(B) 75 g ice
(C) 100 g ice
(D) 150 g ice

Correct Answer: C

Explanation:

300 ÷ 3 = 100 g

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Question (11)

A student places 4 ice cubes in a bowl. After some time, all become water. Which process occurred?

Explanation:

Link:

Question (12)

Which property is common to both liquid water and water vapour?

Explanation:

Link:

Question (13)

If 100 mL of water freezes completely, the resulting substance is

Explanation:

Link:

Question (14)

A student heats ice and observes liquid water after 8 minutes. The change is called

Explanation:

Link:

Question (15)

Which state of water occupies the entire available space in a container?

Explanation:

Link:

Question (16)

An ice block has a mass of 500 g. After melting completely, the mass of water obtained is

Explanation:

Link:

Question (17)

A tray contains 12 identical ice cubes. If 5 melt completely, how many remain unmelted?

Explanation:

Link:

Question (18)

A container has 200 mL liquid water. Half of it freezes. How much water remains liquid?

Explanation:

Link:

Question (19)

A student melts 80 g of ice and collects 80 g of water. This shows that

Explanation:

Link:

Question (20)

If 300 g of water is divided equally into 3 containers and frozen, each container will contain

Explanation:

Link:

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