2 years ago

When a substance changes from a solid to a liquid, is a new substance made?

1 answer:

6 0

Answer:

Explanation:

it means melting or fusion so yhe answer is no

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seraphim [82]

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Explanation:

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xxTIMURxx [149]

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katovenus [111]

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miskamm [114]

Answer:

84.0 ppm is the concentration of Red 40 dy in the original sports drink.

Explanation:

Concentration of red dye in sport drink before dilution $C_1=?$

Volume of the sport drink before dilution $V_1=5.4 mL$

Concentration of red dye in sport drink after dilution $C_2=18.1 ppm$

Volume of the sport drink after dilution $V_2=25.0 mL$

$C_1V_1=C_2V_2$ ( dilution )

$C_1=\frac{C_2V_2}{V_1}=\frac{18.1 ppm\times 25.0 mL}{5.4 mL}$

$C_1=83.80 ppm\approx 84.0ppm$

84.0 ppm is the concentration of Red 40 dy in the original sports drink.

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alina1380 [7]

I think it is B silicon and iron.

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