CHEMISTRY HIGH SCHOOL

Which of the following is a measure of randomness in a system?A) entropy.
B) kinetic energy.
C) potential energy.
D) chemical energy.

Answers

Answer 1
Answer:

Answer:

A) entropy

Explanation:

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An inherited behavior or physical characteristics that helps an organism survive and reproduce Natural selection Predation Adaptation Competitionlook at pic thanks :D​

Answers

Answer:

it's natural selection

Explanation:

adaptation is when you adapt to some situation

Given the speed of light (3.00 × 108 m/s) and a wavelength 5.9 × 10-7 m, what is the frequency?

Answers

Wavelength x Frequency = Speed

So, 5.9 x 10^-7 x F = 3 x 10^8

Rearranging the equation, we get:
F = (3 x 10^8)/(5.9 x 10^-7) = 5.08 x 10^14 Hz

Hope I helped!! xx

NEED HELP ASAP PLEASEWhich of these compounds is covalently bonded?
Select one:
a. KF
b. MgF2
c. NO2
d. Na2S

Answers

C. NO2 is covalent. Hope this helps!

How many grams of NH3 can be produced from the reaction of 28g of N2 and 25g of H2?

Answers

N2 + 3H2 = 2NH3
so, NH3 = (N2 + 3H2)/ 2
            =  (28g + 3*25g)/2
            = 51.5g

In which tool are uranium atoms split to make electricity?

Answers

I'm assuming this refers to nuclear fission, which is in fact used to create heat, causing steam to spin turbines.
In which case, Uranium atoms are split by absorbing neutrons inside the reactor of a nuclear power station.

What are the trends for ionic size among the cations and anions?

Answers

Cations are smaller than the atoms from which they are formed. Anions are larger than the atoms from which they were formed. Ionic size increases from top to bottom down a group of elements in the periodic table.
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