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lana [24]
3 years ago
8

I give brainiest if u help Need help with 1 and 2a

Chemistry
2 answers:
LenaWriter [7]3 years ago
7 0
What do you especially need help on
Alekssandra [29.7K]3 years ago
6 0

Explanation:

fancy number to a delocalized electrons are electrons that move randomly throughout the metallic structure

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3 years ago
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A student submits the following work on the mass number, but he has made a few mistakes. Select the sentences that are incorrect
rewona [7]

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Calculating the mass number for an atom requires that we know the atomic number and the number of protons in the atom’s nucleus. The mass number then gives us the average weight of atoms of a given element. However, as long as the number of protons equals the number of neutrons, the values balance out and we always obtain a whole number for the mass number.

Explanation:

those 3

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3 years ago
No link or Files plz i need help with this one i been stuck on it for a long time
mina [271]

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2 years ago
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limestone breaks down when heated to form quicklime and carbon dioxide. what type of reaction is this?
Trava [24]
No chemical because, its changeing the stuff 
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3 years ago
Hydrofluoric acid, hf(aq), cannot be stored in glass bottles because compounds called silicates in the glass are attacked by the
Trava [24]
1) Chemical equation

Na2 SiO3 (s) + 8 HF (aq) ---> H2 Si F6 (aq) + 2 Na F (aq) + 3H2O (l)

It is balanced

2) Molar ratios

1 mol Na2 SiO3 : 8 mol HF.

3) Proportion

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Answer: 2.72 mol HF

5 0
3 years ago
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