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insens350 [35]
3 years ago
11

Place whole number coefficients in the blanks to balance the chemical reaction.

Chemistry
2 answers:
Yuki888 [10]3 years ago
5 0

Answer:

Explanation:I don’t get it

mote1985 [20]3 years ago
4 0
It is already balanced
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Report the number 315.05 to 3 significant figures.
emmainna [20.7K]

Answer:

315.

Explanation:

Hello.

In this case, since the given number has five significant figures as the zero is to the right of the first nonzero digit (3), if it is required to report it with three significant figures, it is necessary to "cut" it at the first five without any rounding since the subsequent zero is less than five.

Thus the number turns out:

315

Best regards.

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3 years ago
Will name brainliest!!!!!
dem82 [27]

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In a Dam, If we doubled the depth of the dam the hydrostatic force will be ?
AnnZ [28]

Answer: Option (A) is the correct answer.

Explanation:

Force acting on a dam is as follows.

                  F = \frac{1}{2}\rho g\omega H^{2} .......... (1)

Now, when we double the depth then it means H is increasing 2 times and then the above relation will be as follows.

                F' = \frac{1}{2}\rho g\omega (2)^{2}

               F' = \frac{1}{2}\rho g\omega 4 ........... (2)

Now, dividing equation (1) by equation (2) as follows.

          \frac{F}{F'} = \frac{\frac{1}{2}\rho g\omega H^{2}}{\frac{1}{2}\rho g\omega 4}  

Cancelling the common terms we get the following.

                 \frac{F}{F'} = \frac{1}{4}    

                   4F = F'

Thus, we can conclude that if doubled the depth of the dam the hydrostatic force will be 4F.

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3 years ago
Binary compounds are formed by ............... ............... elements.
goblinko [34]

Answer: i think its A diatomic compound..

Explanation: hope i helped! sorry if im wrong!

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Explain why the law of conservation of energy can mean that we do not have unlimited sources of energy.
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