3 years ago

Question 18 of 35

Chemistry

1 answer:

sammy [17]3 years ago

4 0

Answer:

A. Dark-colored moths become common after tree trunks become

dark.

Explanation:

I took the test

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Which properties are examples of chemical properties? Check all that apply.

Scorpion4ik [409]

Answer:

1.Reactivity

2.combustibility

3.Shape

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Explanation:

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A student is told that both energy and mass must be conserved in every chemical reaction. She measures the mass of Hydrochloric

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1. How many isotopes does hydrogen have?

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PLEASE HELP!! GIVING BRAINLIEST

RSB [31]

Answer:

The answer is "0.00172172603".

Explanation:

Given:

$Mass (M) = 1.60 \times 10^{-3} \ g\\\\Density (D) = 9.293 \times 10^{-1} \ \frac{g}{cm^3}\\\\Volume (V) = ?$

Formula:

$\to \bold{V = \frac{M}{D}}$

$= \frac{1.60 \times 10^{-3}}{9.293 \times 10^{-1}} \\\\ = \frac{1.60 \times 10^{1}}{9.293 \times 10^{3}} \\\\ = \frac{1.60 \times 10}{9.293 \times 1000} \\\\ = \frac{1.60 }{9.293 \times 100} \\\\ = \frac{1.60 }{929.3 } \\\\= 0.00172172603$

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3 years ago