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valina [46]
2 years ago
15

If an atom gains some extra electrons so that its valence shell becomes full, what happens to the atom?

Chemistry
1 answer:
leva [86]2 years ago
8 0
B. It becomes more stable.
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What is one reason that scientists who study weather need extremely advanced technology?
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Answer: C) To monitor weather event restricted several days in advance.

Explanation:

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What does the wavelength of a wave measure?
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Wave length measures the width of the wave
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The Nutrition Facts label for crackers states that one serving contains 19 g of carbohydrate, 4 g of fat, and 2 g of protein. Wh
sp2606 [1]

<u>Answer:</u> The amount of kilocalories contained in the given serving of crackes is 0.120 kCal

<u>Explanation:</u>

<u>As per the USDA:</u>

Carbohydrates provide 4 calories per gram, protein provides 4 calories per gram, and fat provides 9 calories per gram

We are given:

Mass of fat in the crackers = 4 g

Mass of carbohydrates in the crackers = 19 g

Mass of protein in the crackers = 2 g

Conversion factor used:  1 kCal = 1000 Cal

Applying unitary method:

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1 gram of fat provides 9 calories

So, 4 gram of fat will provide = \frac{9}{1}\times 4=36Cal=0.036kCal

  • <u>For Carbohydrates:</u>

1 gram of carbohydrates provides 4 calories

So, 19 gram of carbohydrates will provide = \frac{4}{1}\times 19=76Cal=0.076kCal

  • <u>For Proteins:</u>

1 gram of proteins provides 4 calories

So, 2 gram of fat will provide = \frac{4}{1}\times 2=8Cal=0.008kCal

Total kilocalories per serving = [0.036 + 0.076 + 0.008] kCal = 0.120 kCal

Hence, the amount of kilocalories contained in the given serving of crackes is 0.120 kCal

8 0
3 years ago
A change in which property of light will have no effect on whether or not the photoelectric effect occurs??? Frequently energy i
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I hope this helps.  Let me know in the comments if anything is unclear.
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Using the equation MgCl2 -&gt; Mg + Cl2, if 5.00 grams of MgCl2 is given, how many grams of Mg is produced?
motikmotik

Answer:

MgCl2-> Mg+Cl

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RFM Mg=24+35.5 ×2= 95 RFM= 24

moles= 5.00÷ 95= 0.0526 Moles=0.0526

Explanation:

mas of Mg= 1.263 grams

4 0
3 years ago
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