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eimsori [14]
2 years ago
5

Does gravity exist without air?

Chemistry
1 answer:
sveticcg [70]2 years ago
3 0

Mass is required for gravity. Higher mass implies higher gravitational drag. Most of these thoughts are tied to other planets without atmospheres, or the moon. The moon doesn't have any air or atmosphere and it pulls the Earth water.

Please correct any mistakes in my answer!! I'd be happy to fix it!! :)

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4 Na + O2 → 2 Na2O<br><br> 6.79 moles of O2 will react to form how many moles of Na2O?
Nataly_w [17]

Answer:

13.94moles of Na₂O

Explanation:

The balanced reaction expression is given as:

        4Na  +  O₂  →   2Na₂O

Given parameters:

Number of moles of O₂ = 6.97moles

Unknown:

Number of moles of Na₂O

Solution:

 To solve this problem;

            1 mole of O₂  will produce 2 moles of Na₂O ;

            6.97 moles of O₂ will produce 6.97 x 2  = 13.94moles of Na₂O

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Convert 0.00200 g into Mg and answer in scientific notation:
Masja [62]

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Explanation: 1 gram is equal to 1000 Milligrams so

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Since you go straight across its just multiplication so 0.00200x1000=200mg

To answer it in scientific notation it should just be 2.00x10^{2} mg

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Stronger acids are those that —
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