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Alex777 [14]
3 years ago
9

HELP QUICK!!!!!!!!!!

Chemistry
1 answer:
Semenov [28]3 years ago
8 0

Answer: 4 hours and 30 minutes

Explanation: because first wave was 1:30:00 and the second is 1:34:30

1:30:00 goes into 1:34:30 4 hours and 30 minutes.

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Chemical and physical properties of calcite​
Semenov [28]

Answer:

Chemical Classification Carbonate

Explanation:

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Are mass and *weight of matter* the same thing​
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Mass is the quantity of an object.

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How many moles of h2o are produced when 3.25 moles of o2 react in 2c2h6 + 7o2 ---> 4co2 + 6h2o
Alenkinab [10]

Answer:

2.78 moles of water are produced.

Explanation:

Given data:

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Solution:

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                O₂          :          H₂O

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3 years ago
Which of the following are properties of metalloids?
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all of these are properties of metalloids

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