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katrin2010 [14]
3 years ago
8

Which statement accurately describes a light-year?(Select One) It is the shape of a galaxy. It is the distance that light travel

s in a year. It is a yearly measurement of light given off by stars. It is the amount of time it takes light to travel one million kilometers.
Chemistry
2 answers:
Vitek1552 [10]3 years ago
6 0

Answer:

B

Explanation:

edge 2020

Strike441 [17]3 years ago
3 0

Answer: B

Explanation:

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What are the main reasons that organic chemistry is a primarily target for "green chemistry"? I. Organic solvents are often flam
Debora [2.8K]

Answer: Option 1 and 11

1. Organic solvents are often flammable.

II. Organic solvents are often toxic.

Explanation:

Organic solvents are often flammable and Organic solvents are often toxic are the reasons why organic chemistry is a primary target of green chemistry because green chemistry is the use of principles or approach to remove hazardous or toxic substances from chemical.profuctd or processes to make them fit or safe for use and the solvents of organic chemist are toxic, therefore green chemistry remove the toxic substances.

8 0
3 years ago
In the number 48.93, which digit is estimated?
Fudgin [204]
The answer is 3.

Explanation:
It’s the last number and it can’t be 9 because then it would be 48.9 and no 3.
7 0
3 years ago
What is the molar mass of cholesterol if 0.00105 mol weighs 0.406 g?
goblinko [34]
<h3>Answer: 386.67 g/mol </h3>

Explanation:

Molar Mass = Mass ÷ Mole

                   =  0.406 g ÷ 0.00105 mol

                   =  386.67 g/mol

∴ molar mass of cholesterol = 386.67 g/mol

5 0
2 years ago
Do sound waves travel best in dense or less dense areas?
velikii [3]
Thus, sound will travel at a slower rate in the denser object. If sound waves of the same energy were passed through a block of wood and a block of steel, which is more dense than the wood, the molecules of the steel would vibrate at a slower rate. Thus, sound passes more quickly through the wood, which is less dense.
3 0
2 years ago
Read 2 more answers
Which of the following is not an organic compound?<br> OC6H14<br> O CO₂<br> OCH4<br> C12H22011
lana66690 [7]

Answer:

Co2

Explanation

An organic compound includes Carbon and Hydrogen both bonded

4 0
1 year ago
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