Explain why you agree or disagree with this statement

1 answer:

defon3 years ago

4 0

Friction actually generated friction because you create charges that are dealing with electricity. When you rub some against each other , you can create a little spark which is electricity . Friction can produce static or something because it can be transferred by two or more items .

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I NEED THE ANSWER ASAP, GIVING BRAINLIEST.

labwork [276]

D) A change in state of matter from liquid to solid is a physical change.

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4 years ago

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How many H atoms are in 6.43g x 10^24 molecules of water

kow [346]

Answer:

$12.86\times 10^{24}$ atoms of hydrogen

Explanation:

The molecular formula for a water molecule is $H_2O$ .

From the above formula, we can conclude that 1 molecule of water contains 2 atoms of hydrogen and 1 atom of oxygen.

There are $6.43\times 10^{24}$ molecules of water.

1 molecule of water = 2 atoms of hydrogen.

∴ $6.43\times 10^{24}$ molecules of water = $2\times 6.43\times 10^{24}=12.86\times 10^{24}$ atoms of hydrogen.

Therefore, there are $12.86\times 10^{24}$ atoms of hydrogen in $6.43\times 10^{24}$ molecules of water.

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3 years ago

Please help me ill give brainiest to the right answers pick 2 answers btw

Alex17521 [72]

I think it is a and c but i’m not sure

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3 years ago

I need number 5,6 please thanks

bulgar [2K]

5. b is the right answer

6. c is the right answer

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3 years ago

What is the molar mass of Mg(ClO2)2?

olga_2 [115]

I believe the correct answer from the choices listed above is option D. The molar mass of <span>Mg(ClO2)2 is obtained by adding the atomic masses of each atom in the compound and the result is 159.21 g per mole. Hope this answers the question. Have a nice day.</span><span />

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