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rusak2 [61]
3 years ago
6

Why do hot objects have high temperatures?

Chemistry
1 answer:
Alex3 years ago
6 0
Warmer objects have faster particles and higher temperatures. If two objects have the same mass, the object with the higher temperature has greater thermal energy. Temperature is measured with a thermometer.
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How many grams of Al2O3 can form when 23.6 g Al react with excess Fe2O3
lawyer [7]
You have to find the molar mass of Al and O. You can do it!!
7 0
3 years ago
Convert each of the potentials. The silver–silver chloride and calomel reference electrodes are saturated with resulting in cell
gogolik [260]

Answer:

-0.044 V

Explanation:

The overall electrode potential is usually estimated by subtracting the potential of the reference electrode from the potential of the system in question. In the given problem, the standard electrode potential of silver-silver chloride with respect to the standard hydrogen electrode is +0.197 V. In addition, the potential of the calomel reference electrode with respect to the standard hydrogen electrode is +0.241 V. Using the data above, the potential of with respect to silver-silver chloride is equivalent to 0.197-0.241 = -0.044 V.

8 0
3 years ago
A student determined the heat of fusion of water to be 88 calories per gram if the accepted value is 80 calories per gram, what
zimovet [89]
The answer is 10%

The percent error is used to determine the precision of calculations. It can be expressed as:
e =  \frac{v-v_{1} }{v_1} *100
where:
e - the percent error,
v - experimental value (measured value),
v₁ - theoretical value,

It is given:
e = ?
v = 88 calories
v₁ = 80 calories

Thus, the percent error is:
e =  \frac{88-80}{80}*100 =  \frac{8}{80}*100=0.1*100=10%
4 0
3 years ago
When a meteor falls on earth. a streak of light is seen. will this streak of light be seen if a meteor falls on the moon? Explai
Lera25 [3.4K]

Answer:

No streak of light will appear.

Reason I given below.

Explanation:

No streak of light will be seen.

This is because as it falls to the moon, the gravitational pull plus the dense atmosphere which was necessary to produce friction when it fell to the earth are not present in this case and as such the whole meteor is not burnt like it did when it fell to the earth.

7 0
3 years ago
Which stars have the highest absolute brightness?
igomit [66]

I think it might be A. Supergiants.

3 0
3 years ago
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