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What occurs when a substance

When a substance changes from one phase to another, which of the following occurs?the substance loses or gains heat the average
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2. asked by Tasia
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I have two questions on my review study guide that go like this:1) What is the equation for calculating the energy change that
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2. asked by Emily
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Assume that a reaction occurs in which unknown substances R and S react to form unknown substances T and U. From the information
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2. asked by Daniel
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2 what happens during a physical change new substance are formed the identity of the substance is change A chemical reaction
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2. asked by mike
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What is a synthesis reaction?a reaction that occurs when one element within a compound is exchanged with another element a
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2. asked by Noise
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Suppose 1.0 mol of substance A reacts with 1.0 mol of substance B. to produce 2.0 mol of substance C. In a reaction, 2.4 mol of
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2. asked by Andrew
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Substance A and substance B are mixed together. To separate the mixture, water is added, and substance A is filtered out. Then,
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Substance A and substance B are mixed together. To separate the mixture, water is added, and substance A is filtered out. Then,
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2. 52 views
Substance A and substance B are mixed together. To separate the mixture, water is added, and substance A is filtered out. Then,
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2. 50 views
Substance A and substance B are mixed together. To separate the mixture, water is added, and substance A is filtered out. Then,
1. 1 answer
2. 51 views