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3 years ago

Which of the following arrangements of the visible colors of light is in the correct order of increasing energy?

Chemistry

1 answer:

IrinaK [193]3 years ago

4 0

Violet, indigo, blue, green, yellow, orange, red

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Which describes Bohr’s contribution to the atomic model?

wlad13 [49]

answer is A -e described electrons in specific orbits around the nucleus.

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3 years ago

What element is this

schepotkina [342]

Answer:

neon

Explanation:

there are 10 protons

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2 years ago

A better picture of the crossword

puteri [66]

Across

1: Period
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3 years ago

Read 2 more answers

The air in a bicycle tire is bubbled through water and collected at 25 ∘C. If the total volume of gas collected is 5.30 L at a t

Klio2033 [76]

<u>Answer:</u> The number of moles of gas in bicycle tire is 0.210 moles

<u>Explanation:</u>

To calculate the moles of gas, we use the equation given by ideal gas which follows:

$PV=nRT$

where,

P = pressure of the gas = 737 torr

V = Volume of the gas = 5.30 L

T = Temperature of the gas = $25^oC=[25+273]K=298K$

R = Gas constant = $62.364\text{ L. Torr }mol^{-1}K^{-1}$

n = number of moles of gas = ?

Putting values in above equation, we get:

$737Torr\times 5.30L=n\times 62.364\text{ L Torr }mol^{-1}K^{-1}\times 298K\\\\n=\frac{737\times 5.30}{62.364\times 298}=0.210mol$

Hence, the number of moles of gas in bicycle tire is 0.210 moles

6 0

4 years ago

Although objects can go through physical and changes, the amount of matter in those objects remains the same. This is known as t

Liula [17]

The question above is incomplete, the options attached tot he question are given below:
A. A structure made of building blocks.

The blocks of the same structure bundled in a pile.

B. A snowman.

The melted remains of the same snowman.

C. A lump of clay.

The same lump broken into three pieces.

D. 1 cup of water and one gram of salt, separated.

The same cup of water with one gram of salt mixed in.

E. One apple.

The same apple cut into slices.

ANSWER:

The correct options are these:

B. A Snowman and the melted remain of the same snowman.

C. Lump of clay and the same clay broken into three pieces.

E. One apple and the same apple cut into slices.

For all the three answers listed above, the mass of the pairs will remain the same because nothing has been taken out of them and nothing is added to them, they were just changed from one form to another. The other options are wrong because, something got added to the original material.

4 0

3 years ago