2 years ago

The diagram below shows the layers in Earth's interior.

Chemistry

1 answer:

Arada [10]2 years ago

5 0

Answer:

layer B is liquid because of the inner members and layer A is solid because of the outer members

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Number of different bond angles for pbr2f3

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myrzilka [38]

Answer:

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3 years ago

A solution is made containing 4.6 g of sodium chloride per 250g of water.

lozanna [386]

Answer:

$\large \boxed{1.81 \, \%}$

Explanation:

$\text{Mass percent} = \dfrac{\text{mass of solute} }{\text{mass of solution}} \times 100 \, \%$

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Mass of NaCl = 4.6 g

Mass of water = 250 g

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Mass of solution = mass of NaCl + mass of water = 4.6 g + 250 g = 254.6 g.

$\text{\% m/m} = \dfrac{\text{4.6 g} }{\text{254.6 g}} \times 100 \, \% = \mathbf{1.81 \, \%}\\\\\text{The percent by mass of NaCl is $\large \boxed{\mathbf{1.81 \, \%}}$}$

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4 years ago