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Nataliya [291]
2 years ago
14

Which of the following are used to make predictions?

Chemistry
1 answer:
tatyana61 [14]2 years ago
5 0

Answer:

Hypotheses

Explanation:

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Read the excerpt from "The Speech."
Y_Kistochka [10]

Answer:

<em>it's</em> <em>quickly moved</em>

Explanation:

<em>whisk </em>

<em>/(h)wisk/ </em>

<em>Learn to pronounce </em>

<em>verb </em>

<em>past tense: whisked; past participle: whisked </em>

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<em>take or move (someone or something) in a particular direction suddenly and quickly.</em>

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<em>Hope this helps ^^</em>

5 0
3 years ago
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How many molecules are in 6.20 moles of CaCO3?
DedPeter [7]

Answer:

Moles to Grams caco3

1 mole is equal to 1 moles CaCO3, or 100.0869 grams.

6 0
3 years ago
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Which of the following atoms would gain two electrons to fill its valence energy level?
Harlamova29_29 [7]

The atom that would gain two electrons to fill its valence energy level is S(sulfur)

This is because s (sulfur) is in atomic number 16 with 2.8.6 of [Ne] 3s^2 2p^4 electronic configuration. This implies that sulfur has 6 valence electron and therefore it require two electron to fill its valence energy level and obtain 18 rule electrons.

5 0
4 years ago
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Ann and Carol each lift the timber with a force of 80 kg/m/s2. If they lift the timber a distance of 1.25 meters, how much work
Novosadov [1.4K]
Work is defined energy transferred from one to another. 
The formula for work done is work done = force x distance

So in our problem, force is equal to 80 kg/ m / s^2 and distance is equal to 1.25 meters. So plugging in our values will give us:

work done = 80 kg/ m/ s^2 * 1.25 m
= 100.00 J is the answer.
4 0
3 years ago
How do ozone molecules form in the stratosphere?
alekssr [168]
Sunlight breaks apart an oxygen molecule to form separate oxygen atoms <span />
3 0
3 years ago
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