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Natasha2012 [34]
3 years ago
12

If a black hole is invisible how can we determine when one is present

Chemistry
1 answer:
Gelneren [198K]3 years ago
8 0

Answer: you can’t

Explanation: i’m dumb too

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Every day, about 1 4 0 , 0 0 0 , 0 0 0 140,000,000140, comma, 000, comma, 000 plastic water bottles are bought in the United Sta
jeka94

Answer:

0.875 time.

Explanation:

The length of plastic water bottles are bought in the United States every day = (the no. of plastic water bottles are bought every day)(length of each bottle) = (140.0 million bottle)(0.25 m) = 35.0 million meter.

The length of the equator of the earth = 40.0 million meter.

∴ The times can the Earth's equator be circled by a line of plastic bottles used in the United States every day = (The length of plastic water bottles are bought in the United States every day)/(The length of the equator of the earth) = (35.0 million meter)/(40.0 million meter) = 0.875 times.

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3 years ago
What mass, in grams, of NaNo, is needed to make 6.24 Liters of a 0.500 M solution?
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3 years ago
During which change of state does the motion of the atoms decrease?
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The motion of atoms decrease when there is a decrease in velocity and kinetic energy that is decrease in temperature. this occurs during freezing and condensation.
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Water molecules generally have which effect on a soluble ionic compound mixed into water
IceJOKER [234]

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1.They break the bonds between the ions.

2.They remove electrons from the ions.

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covalent bonds do not dissolve in water but some covalent compoound s do

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