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3 years ago

12

PLEASE HELP

2 answers:

Virty [35]3 years ago

8 0

Answer:

I think the answer is D.coral reef, neritic zone

Explanation:

Alborosie3 years ago

8 0

Answer:

d

Explanation:

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A neutral atom of beryllium (Be) has an average mass of 9 amu and 4 electrons. How many neutrons does it have?

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The density of a rock that was a mass of 454 grams and a volume of 100 cm3

puteri [66]

Answer:

The answer is

<h2>4.54 g/cm³</h2>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

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mass of rock = 454 g

volume = 100 cm³

The density of the rock is

$density = \frac{454}{100} = \frac{227}{50} \\$

We have the final answer as

<h3>4.54 g/cm³</h3>

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~ Jordan ~

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