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MaRussiya [10]
2 years ago
5

Which of the following are indicators of a chemical change? Select all that apply.

Chemistry
2 answers:
Arturiano [62]2 years ago
4 0
<span>Which of the following are indicators of a chemical change? Select all that apply.
</span>
These are the answers:

<span>color change
temperature change
precipitate formation
gas formation

Hope this helps.
</span>
Lorico [155]2 years ago
4 0
The awnser is A and B beacause chemical changes are what is on a molecular level while the other choices are physical changes.
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Calculate the volume of 2.65 moles of CO2 gas at STP.
Harman [31]

Answer:

The volume is 59, 3 liters. See the explanation below, please

Explanation:

STP conditions (standard) correspond to 273K of temperature and 1 atm of pressure. These values are used and the volume is calculated, according to the formula:

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3 years ago
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7 0
3 years ago
A loaded coal wagon with a total mass of 20 000 kg is pushed by a force of 300 000 N. What was the wagon’s acceleration?
AlexFokin [52]

Answer:

<h2>15 m/s²</h2>

Explanation:

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a =  \frac{f}{m}  \\

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From the question we have

a =  \frac{300000}{20000}  =  \frac{30}{2}  \\

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<h3>15 m/s²</h3>

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alisha [4.7K]

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Read 2 more answers
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