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borishaifa [10]
3 years ago
12

What is the mass of an atom with seven protons, seven neutrons, and seven electrons? Record and bubble in your answer below.

Chemistry
2 answers:
Irina-Kira [14]3 years ago
7 0

Answer:

Mass would be 14 amu

Explanation:

Liono4ka [1.6K]3 years ago
4 0

Answer:

hgggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg

Explanation:

hfggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg

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jeyben [28]
A chemical substance has the characteristics that it cannot be separated by physical  methods. Seawater and milk can be separated by sedimentation, and air has different components depending on other aspects (such as elevation). Only ammonia is a substance. (thus it can have a formula: NH<span>3)</span>
3 0
3 years ago
A student places a beaker on a hot plate. To the beaker, he adds a clear liquid and a white powder. The mixture instantly begins
Elenna [48]
True, because if it wasn't a chemical reaction it would have proceeded to stay the same. but it begins to bubble.
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7 0
3 years ago
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Which is a cause of polarity in water molecules? partial negative charge on the hydrogen atoms partial positive charge on the ox
Tamiku [17]

Explanation:

Water is a polar solvent as the hydrogen and oxygen atom has large difference in their electronegativities.

Oxygen atom is highly electronegative as compared to hydrogen atom therefore, it pulls the electrons of hydrogen atom closer towards itself.

As a result, two poles will create forming a partial positive charge on the hydrogen atom and partial negative charge on the oxygen atom.

Thus, we can conclude that high electronegativity difference between oxygen and hydrogen is the cause of polarity in water molecules.

7 0
3 years ago
What are all included in the immune response? A) T-cells B) lymphocytes C) B-cells D) stem cells E) oil
sergij07 [2.7K]

Answer: In the immune responds B,D are correct

Explanation:

I know this because i already learned it

8 0
2 years ago
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How many Oxygen elements are in a carboxylic acid
Amanda [17]

Answer:

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Explanation:

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