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Luba_88 [7]
3 years ago
12

Please help ASAP I will give 19 points please help

Chemistry
2 answers:
Nikitich [7]3 years ago
4 0
The right answers are on quizlet!!! it’s a great use.
romanna [79]3 years ago
3 0

Answer:

Can you pls clarify this

Explanation:

I dont

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Which phrase describes the mass of an ice cube? a. amount of space that the cube occupies
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I think the correct answer from the choices listed above is option C. The mass of an ice cube is the total amount of water in the ice cube. Ice is the solid form of water. Hope this answers the question. Have a nice day. Feel free to ask more questions.
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According to the Kinetic Molecular Theory, as the volume of a gas increases: the number of particle impacts per unit area increa
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As the volume of a gas increases <em>at constant temperature</em>, the number of particle impacts per unit area decreases.

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The half-life of cobalt-60 is 5.3 years. after __________ years, 1/4 of the original amount of cobalt-60 will remain.
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  after  one  half life  1/2 of the original  mass isotope  remains

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4 0
3 years ago
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Read the descriptions below of two substances and an experiment on each. Decide whether the result of the experiment tells you t
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Answer:

Sample A is a mixture

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Explanation:

For sample A, we are told that the originally yellow solid was dissolved and we obtained an orange powder at the bottom of the beaker. Subsequently, only about 30.0 g of solid was recovered out of the 50.0g of solid dissolved. This implies that the solid is not pure and must be a mixture. The other components of the mixture must have remained in solution accounting for the loss in mass of solid obtained.

For sample B, we are told that boiling started at 66.2°C and continued until 76.0°C. The implication of this is that B must be a mixture since it boils over a range of temperatures. Pure substances have a sharp boiling point.

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