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OlgaM077 [116]
2 years ago
5

Which statement best illustrates how mixtures and pure substances are different?

Chemistry
1 answer:
AveGali [126]2 years ago
3 0

Answer:

<h3><em>Mixtures</em><em> </em><em>are </em><em>physically</em><em> </em><em>combined</em><em> </em><em>and</em><em> </em><em>pure </em><em>substance</em><em>s</em><em> </em><em>are </em><em>chemically</em><em> </em><em>combined</em><em>.</em></h3>
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Thermal energy is what we call energy that come from ___ of matter
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Explanation:

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Complete the sentences to explain what’s happening at different portions of the heating curve.
Neporo4naja [7]

Particles of the substance have the most kinetic energy when the substance is(a)1. A gas. The part of the graph that represents where the substance has the least amount of potential energy is labeled(b)1. Solid.

Gas molecules have the highest average velocities among the three states of matter so gas has the highest kinetic energy. During freezing, a substance loses a lot of potential energy so solid has the least potential energy.

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A reaction mechanism has the following elementary step as the slow step: B2A What is the rate law for this elementary step? O ra
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r = k [ B ]

Explanation:

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3 years ago
A silver necklace has a density of 10.5 g/mL and a volume of 1.5 mL. What is the mass of the silver necklace?
melamori03 [73]

Answer:

15.75g

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Now substitute (plug in) the known values into the formula:

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Hope this helps!

4 0
2 years ago
Look at the bottom of the periodic table. There are two rows of elements separated from the others. Where do these
mina [271]

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