3 years ago

Density is the _ of a certain __

1 answer:

3 0

I think the first blank is "solidity" and second is "object."

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rosijanka [135]

METALS ARE MAGNETIC(and maybe metalloids)

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3 years ago

shusha [124]

Answer:

Fe2O3 + 3CO → 2Fe + 3CO2

Explanation:

the numbers in front are the numbers you need

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2 years ago

irina1246 [14]

Answer:a

Explanation:yes

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3 years ago

swat32

The answer is D. Okay l hope this helps

5 0

3 years ago

alex41 [277]

Answer:

$1.39\times 10^{17}$ moles of water in $2.5\times 10^{18} g$ of water.

Explanation:

Mass of water = $m = 2.5\times 10^{18} g$

Molar mass of water = M = 18 g/mol

Moles = n = $\frac{m}{M}$

$n=\frac{2.5\times 10^{18} g}{18 g/mol}=1.39\times 10^{17} moles$

So, there are $1.39\times 10^{17}$ moles of water in $2.5\times 10^{18} g$ of water.

3 0

3 years ago

Density is the _____ of a certain ______