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Sveta_85 [38]
3 years ago
8

Select the correct answer.

Chemistry
2 answers:
Marysya12 [62]3 years ago
8 0

Answer:

I think the correct answer is (c)

Explanation:

rusak2 [61]3 years ago
6 0
I think the answer to this A but I’m not rlly sure
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Earth has a magnetic force that is strongest at its core.

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Zina [86]

Answer:

Explanation:

n CaCO3 = mass / m.wt

             = 500  /( 40 + 12 + 16x 3)

           =   5 mole

n CaO = 5 moles  ( from the balanced equation we have 1:1 moles )

mass of CaO = nCaO X m.wt

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3 years ago
Please help. balance this equation
Nuetrik [128]

Answer:

k=2

ci=2

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4 0
2 years ago
Suppose Gabor, a scuba diver, is at a depth of 15m15m. Assume that: The air pressure in his air tract is the same as the net wat
alexandr1967 [171]

Answer:

The ration of molar concentration is "2.5".

Explanation:

The given values are:

Average density of salt water,

= 1.03 \ g/cm^3

Net pressure,

= 2.00 \ atm

Increase in pressure,

= 1.00 \ atm

Now,

The under water pressure will be:

=  \frac{15 \ m}{10}\times 1 \ atm +1 \ atm

=  1.5\times 1+1

=  1.5+1

=  2.5 \ atm

hence,

The ratio will be:

=  \frac{(\frac{n}{V})_{15m} }{(\frac{n}{V})_{surface} }

or,

=  \frac{P}{P_s}

=  \frac{2.5}{1}

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2 years ago
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