1.) Which conditions or make a substance condense? (2 answers)
(A) when energy is absorbed by the substance
(B) when energy is given off by the substance
(C) when the kinetic energy of its particles overcomes the force of attraction between them
(D) when the force of particles is greater than their kinetic energy
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2.) What will happen to the particles of a substance if it'll be heated?
(A) they will speed up and move closer
(B) they will speed up and move apart
(C) they will slow down and move closer
(D) they will slow down and move apart
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3.) What does the mass number indicate?
(A) number of electrons
(B) total number of electrons and protons
(C) number of neurons
(D) total number of neurons and protons
Please answer completely, and as much as possible, please provide explanations. Unhelpful and/or confusing answers will be reported.
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STATES OF MATTER
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Which conditions or make a substance condense? (2 answers)
Answer:
(B) When energy is given off by the substance.
(D) When the force of particles is greater than their kinetic energy.
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What will happen to the particles of a substance if it'll be heated?
Answer:
(B) They will speed up and move apart
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What does the mass number indicate?
Answer:
(D) Total number of neutrons and protons
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