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umka21 [38]
3 years ago
9

An object with too many is negatively charged.

Chemistry
1 answer:
zubka84 [21]3 years ago
3 0

Answer:Electrons

Explanation:

Because it is!!

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A diver has 3,400 J of gravitational potential energy after climbing
Zanzabum

Answer:

57.8kg

Explanation:

Potential energy is given by:

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Where U is potential energy, m is mass, g is acceleration due to gravity, and h is height. Using this equation:

3400=m(9.8)(6)\\3400=58.8m\\m=57.8kg

3 0
2 years ago
The 10 short columns in the middle of the periodic table make up the
nekit [7.7K]

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The transition elements or transition metals occupy the short columns in the center of the periodic table, between Group 2A and Group 3A.Explanation:

6 0
2 years ago
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Calculate the mass of 0.00456 moles of (NH4)2SO4
Anna [14]
To find the mass you need to find the weight of a mol of the molecules by adding up the atomic mass.

N =  14.007 g/mol
H = 1.008 g/mol
S = 32.065 g/mol
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2(14.007) + 8(1.008) + 32.065 + 4(16) = 132.143 g/mol

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0.00456 * 132.143 = 0.603 g
7 0
3 years ago
What is the pH range for an acid? <br> 0-7<br> 7-14<br> 7<br> 0
olga nikolaevna [1]
<h3>Answer: Choice A)  0-7</h3>

Explanation:

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If the pH is between 7 and 14, then we have an alkaline base.

If pH = 7, then it's neutral.

7 0
2 years ago
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Density is ___ to pressure
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Proportional to pressure
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