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Ostrovityanka [42]
2 years ago
15

Why doesn't the earth,s shadow get cast onto the moon every month ?

Chemistry
1 answer:
soldi70 [24.7K]2 years ago
8 0
Becuz the sun refelt off the earth and on to the moon.

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A sample of a substance containing only magnesium and chlorine was tested in the lab and was found to be composed of 74.5% chlor
chubhunter [2.5K]
Use a ratio to find out that x/190.2 = 74.5/100 

hope this helps
8 0
2 years ago
What is the formula of a compound formed between nitrogen (N) and potassium (K)?
Rina8888 [55]
<span>You need to consider the valences of the two elements. Potassium is +1; nitrogen is -3. To balance the molecule, you need 3 potassium to one nitrogen, or K3N</span>
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3 years ago
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When air pressure is low what is the weather like​
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A sealed reaction vessel initially contains 1.113×10-2 moles of water vapor and 1.490×10-2 moles of CO(g).
Molodets [167]

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Kc =\frac{[8.326x10-3]^{1} }{[1.113x10-2]^{1}[1.490x10-2]^{1}  }

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3 years ago
What is the usual charge on an ion from group 7a
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