2 years ago

Which functional group contains a nitrogen atom and an oxygen atom?

Chemistry

2 answers:

Alexxx [7]2 years ago

8 0

Answer:

Amine

Explanation:

Margaret [11]2 years ago

4 0

Answer:

amide !!!!

Explanation:

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7. A square chunk of plastic has a length of 5 cm, width of 5 cm and height of 5 cm. It has a mass of 200 g. What is its density

BaLLatris [955]

Answer:

$d=1.6\ g/cm^3$

Explanation:

Given that,

The dimension of a square chunk of plastic is 5 cm × 5 cm × 5 cm

Mass, m = 200 g

We need to find its density

Density = mass/volume

It will form a cube. It volume = side³

So,

$d=\dfrac{200\ g}{5^3\ cm^3}\\\\d=1.6\ g/cm^3$

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3 years ago

Find the mass of a metal cylinder that has a volume of 652 cm and a density of<br> 21.45 g/cm

GREYUIT [131]

<h2>Answer: 13985.4 g</h2>

Explanation:

Mass = volume × density

Mass = 652 cm³ × 21.45 g/cm³

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Explanation:

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2 years ago

When patterns of stars appear to move across the sky, it provides evidence that ________.

Alexus [3.1K]

Answer:

Answered B

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The earth moves which makes the stars and everything in space seem like its moving

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