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kupik [55]
2 years ago
15

HELPPP!! Which of the following describes light? (Select all that apply.)

Chemistry
2 answers:
Mnenie [13.5K]2 years ago
5 0

Answer: A.Light travels in a straight line., B.Light behaves in a predictable way. , D.Light curves around corners or obstructions

-Hope this helps<3

djverab [1.8K]2 years ago
4 0

Answer:

I think it's letter D, it's base in my instinct.

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What is the main function of the circulatory system?
likoan [24]
B- is the answer


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4 0
3 years ago
Read 2 more answers
The half-life of cesium-137 is 30 years. Suppose we have a 200-mg sample. (a) Find the mass that remains after t years.
scZoUnD [109]

Given:

Half life(t^ 1/2) :30 years

A0( initial mass of the substance): 200 mg.

Now we know that

A= A0/ [2 ^ (t/√t)]

Where A is the mass that remains after t years.

A0 is the initial mass

t is the time

t^1/2 is the half life

Substituting the given values in the above equation we get

A= [200/ 2^(t/30) ] mg


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5 0
3 years ago
PLEASE HELP!!!
yuradex [85]

This might be right. Im not quite sure. This is what my 5th grade science teacher told me. 'Look at the 2 LR's and add them together. Then look at the total amount which is 32. When you add the 2 LR's you get 17. So subtract 17 from 32 and you get 15. So: C:15 is your answer." (LR's stands for liquid reactants)

10+17=17

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32-17=15

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7 0
3 years ago
Read 2 more answers
How many moles of carbon are in 6.0 moles of quinine
damaskus [11]
The molecular formula of quinine is C20H<span>24N2</span>O<span>2. For every 1 mole of quinine molecule, there are 20 moles of carbon. Simply multiplying 6.0 moles by 20, we get, 120 moles.
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4 0
3 years ago
Balancing Equations. How many of the element should I drag to the center?
babunello [35]

Answer:

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Explanation:

You have to drag the elements shown on the right under the formula.  For example, you would have to drag 4 of the FeS molecules under the 4FeS text in the formula.  Then place 7 O₂ molecules under the 7O₂ text, etc.

8 0
2 years ago
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