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12345 [234]
3 years ago
6

Describe the difference between thermal energy and temperature.

Chemistry
2 answers:
Misha Larkins [42]3 years ago
7 0
You can add thermal energy and the temperature won't change.  This can happen when you've added less than the specific heat of the substance or if the substance in going through a phase change when the temperature is constant but the energy is changing the phase (the spacing of the particles)
oee [108]3 years ago
6 0
Thermal energy is radiation being released from an object and the temperature is how hot or cold something is.

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the radioisotope radon-222 has a half-life of 3.8 days. how much of a 65-g sample of radon-222 would be left after approximately
MariettaO [177]
Use the 1st order decay equation 
<span><span>Cfinal</span>=<span>Cinitial</span><span>e<span>−kt</span></span></span> 
by filling in and doing the math you will get:

<span> </span><span>Cfinal</span><span> = 1.11 grams Rn-222 after 23 days. 
 
hope this helps 

</span>
7 0
3 years ago
Observe: Set up the Gizmo to observe freezing. What do you notice about the temperature while the water is in the process of fre
kaheart [24]

Answer:

In cases where the water freezes, a release of energy occurs to the environment, therefore energy is lost, and it begins to "cool down".

The term cooling in chemical science today is not well seen since it is not considered that this exists, but would be replaced by the term "absence or loss of heat".

It is considered that a body cools when its temperature decreases, and if it continues to decrease as in the case of water, a point will reach the freezing point, which in this case that of water is 0 degrees Celsius, therefore when the cooling overcomes this thermal barrier the water solidifies "freezing"

Explanation:

In the case of pure water (H2O), the freezing point is 0 ° C. This means that, as long as it is at a temperature above 0ºC and below 100ºC (since that is its boiling point), the water will be in a liquid state.

8 0
3 years ago
Which of the following is not an example of a chemical change?
tensa zangetsu [6.8K]
The correct answer is cutting paper because it is an example of a physical change. A physical change is a change a change in the properties of matter that does not change the identity of the substance. On the other hand, chemical change is a change where the substance changes in identity after undergoing a process..
4 0
3 years ago
Determine which choice(s) is/are correct?
Vesna [10]

Answer:

2 and 4 so B) II and IV

Explanation:

I false ... stirring speeds up the rate of dissolution because it increases surface area . II is true , III false ... heating up speeds up the rates of dissolution , IV is true .

3 0
3 years ago
Read 2 more answers
5. Which choice best represents the relationship between wavelength and frequency?
Arte-miy333 [17]
When frequency increases, wavelength increases
4 0
3 years ago
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