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Svet_ta [14]
3 years ago
12

An experiment applies heat to a substance and produces a gas that is a new and different substance. Choose the true statement.

Chemistry
1 answer:
bearhunter [10]3 years ago
4 0
Well if the change is reversible then it is a physical change, but if not then it is a chemical change.
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What makes a charged object attract an uncharged object?
Ratling [72]

Answer:

its c I think C)

 

The reason for this is due to the phenomenon called "Charging by Induction". What that means is that when something with a charge, for example a negative charge, is brought near an uncharged one, it induces the opposite charge onto it (positive in this case) and therefore since opposites attract, it attracts it.

The reason for this is that since, just like a positive magnet rejects and pushed away like charges, the electrons hold a negative charge, they push away any electrons that may be in the neutrally charged item causing only protons to be left, thus creating an oppositely charged object. Or vice versa.

So whatever charge the object has, it induces the opposite charge into the uncharged object, causing the charges to move only in the uncharged one.

Explanation:

7 0
3 years ago
A cough sytup contains 0.5M dextromethophan. How many moles of the cough supressant are in 21.3mL of the cough syrup?
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0.0107 mol

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7 0
3 years ago
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mihalych1998 [28]
B. Most rocks are composed of single mineral
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nexus9112 [7]

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Explanation:

8 0
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 In a double-replacement reaction, the _____.?


There are many more interesting things to ask about double replacement reactions than are contained in the list given here. But the only correct choice is: 

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