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Troyanec [42]
2 years ago
12

A particle with 10 protons, 11 neutrons, and 12 electrons has a mass number of:

Chemistry
1 answer:
garik1379 [7]2 years ago
7 0

For any given element the mass number can be found by adding the protons and the neutrons.

In this case its 10 protons plus 11 neutrons which gives us 21 as the mass number.

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Are babies producers or consumers or none? What about rocks? Are they producers or consumers?
Allushta [10]

Answer:

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8 0
2 years ago
650.J is the same amount of energy as? <br>2720cal<br>1550cal<br>650.cal<br>2.72cal
Oksi-84 [34.3K]

<u>Ans: 650 J = 155 calories</u>


<u>Given:</u>

Energy in joules = 650 J

<u>To determine:</u>

The energy in calories

<u>Explanation:</u>

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4 0
3 years ago
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Given the balanced equation representing a reaction:
dimaraw [331]
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3 years ago
Crime scene investigators keep a wide variety of compounds on hand to help with identifying unknown substances they find in the
rusak2 [61]

Answer:

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Explanation:

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We divide each by the lowest value, in this case 0.662

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Explanation:

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