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notsponge [240]
3 years ago
8

Needed Help... for this work​

Chemistry
1 answer:
guajiro [1.7K]3 years ago
6 0

Answer:

Displacement is the shortest distance travelled by a moving body through a entire journey.

The work done by the man pushing a fixed wall with the force of 100N is zero

work = force * displacement

Explanation:

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Lucy wants to attach a goal cost to each of her life goals. Why might she do this?
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Answer:

So she can have something to reach or look forward to.

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8 0
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

0.340 mol Na2 SiO3 * 8 mol HF / 1mol Na2SiO3 = 2.72 mol HF.

Answer: 2.72 mol HF

5 0
3 years ago
Can a molecule with nonpolar bonds ever be polar? Why<br> why not?
Tanya [424]

Answer:

A molecule that has only nonpolar bonds and no polar bonds cannot be polar.

Explanation:

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5 0
2 years ago
What is physical since ?
uysha [10]
You mean physical science?
3 0
2 years ago
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-BARSIC- [3]
I think it would be:
Is the author stating fact or opinion?
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Ones you add if you wanted to is
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3 years ago
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