Definition of compounds

1 answer:

5 0

A thing that is composed of two or more separate elements; a mixture.

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Rom4ik [11]

Answer:

D. 18.7 grams

Explanation:

The coefficients are the key.

Create a proportion with them, and the molar mass, and then solve for x:

$\frac{2}{3} = \frac{x}{28} \\ 3x = 2(28) \\ 3x = 56 \\ x = 18.666... = 18.7$

7 0

3 years ago

Oxana [17]

Answer:

1.5a

Explanation:

4 0

3 years ago

Ganezh [65]

Molar mass of Na2SO4*10H2O is 322.1949 g/mol

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3 years ago

Rainbow [258]

M=7M(H₂O)

M=7*18.015 g/mol = 126.105 g/mol

5 0

3 years ago

e-lub [12.9K]

The answer is option (B) Physics

8 0

3 years ago

Definition of compounds​