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ad-work [718]
3 years ago
6

Which of the following samples had the lowest average kinetic energy?

Chemistry
2 answers:
Aleksandr [31]3 years ago
6 0

Answer:

B. 10 mL of Cabr2(aq) at 35 degrees celsius

Explanation:

The colder something is the more the atoms are compressed together; atoms can't move as much. 35 degrees is the warmest option, so it makes the most sense.

ludmilkaskok [199]3 years ago
3 0

Answer:

15ml of nacl(aq) at 5c

Explanation:

Low temp and low volume equals low energy

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Mass=1.01 kg; volume =1000cm3
guajiro [1.7K]

Density = 1.01 g/cm^3 or 1.01 kg/dm^3 or 1010 kg/m^3

Density = mass/volume = 1010 g/1000 cm^3 = 1.01 g/cm^3 = 1.01 kg/dm^3

= 1010 kg/m^3


7 0
3 years ago
What are all included in the immune response? A) T-cells B) lymphocytes C) B-cells D) stem cells E) oil
sergij07 [2.7K]

Answer: In the immune responds B,D are correct

Explanation:

I know this because i already learned it

8 0
3 years ago
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Brad is testing three solutions with litmus paper. After dipping the litmus paper strips in the solutions, he observes two paper
otez555 [7]
After dipping the litmus paper strips in the solutions, the answer to the question is that one is acidic because according to brad's observation on turned red and the others are basic or alkaline with the two papers turning blue.
4 0
3 years ago
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If I had 50 graham cracker squares, 15 marshmallows, and 100 little
anastassius [24]
The answer the the question is 22
8 0
3 years ago
When a pure sample of KNO3(s) spontaneously dissolves in water at room temperature, the solution becomes quite cold to the touch
jekas [21]

The enthalpy of the solution is <u>positive </u>and the entropy is <u>positive</u>.

Potassium trioxonitrate (V) KNO₃(s) is a strong oxidizing solid substance that when dissolved in water changes to aqueous solution.

In its aqueous solution state, the randomness of molecules increases as a result of that the entropy will also increase leading to the positive state of the entropy.

Similarly, provided that the solution becomes quite cold to the touch, the enthalpy is also in it positive state.

Therefore, we can conclude that the enthalpy of the solution is <u>positive </u>and the entropy is <u>positive</u>.

Learn more about Potassium trioxonitrate (V) KNO₃(s) here:

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4 0
2 years ago
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