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lara31 [8.8K]
3 years ago
13

PLEASE PLEASE HELP!!!! What is the mass of a sample material that has a volume of 72.2cm³ and a density of 7.7g/cm³?

Chemistry
1 answer:
Vikki [24]3 years ago
3 0

Answer:

The answer is

555.94g

Explanation:

To find the mass of a substance given it's density and volume we use the formula

<h2>Density \:  =  \frac{mass}{volume}</h2>

Making mass the subject we have

mass = Density × volume

From the question

Density = 7.7 g/cm³

Volume = 72.2 cm³

Substitute the values into the above formula

That's

mass = 7.7 g/cm³ × 72.2 cm³

We have the final answer as

<h3>mass = 555.94g</h3>

Hope this helps you

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Explanation:

Gravity is viewed as a force because it is a force. A force F is something that makes objects of mass m accelerate according to F=ma. ... Einstein explained this gravitational force, F=GMm/r2, as a consequence of the curved spacetime around the massive objects.

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Which acid/base pair will give an equivalence point that cannot be predicted solely by a general knowledge of acid and base stre
sleet_krkn [62]

The acid/base pair that give equivalence point that Cannot be predicted by general knowledge is NaOH and HCI ONH.

<h3>What is an Acid and base?</h3>

An Acid is a substances that is corrosive in nature and turn blue lithmus paper to red which it react with base to produce salt and water.

Acid dissolve metals.

Base is a substance that turn red lihthmus paper to blue and react with acid to produce salt and water.

Therefore, The acid/base pair that give equivalence point that Cannot be predicted by general knowledge is NaOH and HCI ONH.

The question is incomplete as the options were not given. The options were gotten from another website.

Select the correct answer below:

ONaOH and HCI ONH,

HC ONH, and CH, COOH

NaOH and Christmas, COOH

Learn more about acid and base below.

brainly.com/question/2506771

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The kind of radioactive element is useful for dating an object is one with a half-life close to the age of the object.

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Therefore, The kind of radioactive element is useful for dating an object is one with a half-life close to the age of the object.

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#SPJ1

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