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WITCHER [35]
3 years ago
9

NEED THIS NOW PLZZ!!!!

Chemistry
1 answer:
yuradex [85]3 years ago
6 0

Answer:

the box will move to the right

Explanation:

because the force is greater on the left

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helium

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Show how the total charge sodium oxide is zero
coldgirl [10]
First, the symbol for sodium oxide is Na₂O

Each Na (sodium) has a charge of 1+, and each O has a charge of 2-  :

Na₂¹⁺O²⁻

There are two Na's, however, and each one is 1+, however, so the Na₂ has a total charge of 2+.  Because of this, the 2+ from the 2 Na's and the 2- from the O cancel each other out to make 0.
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Which of the following is an example of a chemical change? A. melting solid gold B. burning hydrogen gas C. breaking a sheet of
cestrela7 [59]
The answer is B. Burning hydrogen gas

5 0
3 years ago
Help pls i really need help
MaRussiya [10]

Answer: I think it's 1

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6 0
3 years ago
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calculate the volume of air in liters that you might inhale(and exhale)in 8.0 hours. Assume that each breath has a volume of 0.5
maks197457 [2]
Formula:
0.57 liters = 1 breath(17 breaths = 1minute)(60 minutes = 1 hour)(8 hours) = 4651.2 liters

each breath is 0.57 liters
He or she exhales 17(0.57) = 9.69 liters in a minute
in an hour, he or she exhales 9.69(60) liters in a minute = 581.4 liters
Answer = in 8 hours he or she exhales, 581.4(8) = 4651.2 liters in 8 hours


Hope that answers your question!!!!have a great day!!!



6 0
3 years ago
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