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Maru [420]
3 years ago
5

Please help and hurry! I'll give brainliest

Chemistry
2 answers:
jonny [76]3 years ago
7 0

Answer:

hi this it for the Instructions: In this engineering lab, you will build and test a device that releases and absorbs

thermal energy in order to reach a goal. You will need to repeat tests of your device to make sure it

does not need to be redesigned or improved. Record your observations and test measurements in

the lab report below. You will submit your completed report. yea that thing the answer is in the file

Explanation:

sorry for telling you on this :( but i hope this helps

Download docx
andrew-mc [135]3 years ago
3 0

Answer:

Explanation:

there yall go i got a 100 on this :)

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Use the equation P=VI.
P=power (in this case 10 kilowatts or 10000 watts)
V=voltage (in this case unknown)
I=current (in this case 15.8 amps)
rewrite the equation to be V=P/I
V=(10000 watts)/(15.8 amps)
V=632.9 volts
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3 years ago
In the Energy and Specific Heat lab, you measure the temperature change of water to study the specific heat of a metal. What sta
pshichka [43]

The question is incomplete, the complete question is;

In the Energy and Specific Heat lab, you measure the temperature change of water to study the specific heat of a metal. What statement explains the relationship between the water and the metal you are studying? Select one: O The heat lost by the metal plus the heat gained by the water equals 100. O The temperature change of the metal is equal to the temperature change of the water. O The heat lost by the metal is equal to the heat gained by the water. The initial temperature of the metal equals the initial temperature of the water

Answer:

The heat lost by the metal is equal to the heat gained by the water.

Explanation:

When the piece of metal is put into water, heat is lost by the metal and gained by the water.

Recall that energy is conserved hence heat lost by metal must be equal to heat gained by water.

Thus, the relationship between the metal under study and the water is that the metal looses heat to the water and heat lost by metal is equal to heat gained by water.

3 0
3 years ago
Can someone help me answer this homework problem. this is my homework.
sleet_krkn [62]

Answer:

12

Explanation:

The coefficient of the CO2 shows the amount of CO2 needed in the reaction so to react with 11 water, 12 molecules of carbon dioxide is needed.

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2 years ago
Can you give me an example of a chemical change?
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When a gas is produced
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How many monochlorination products can be formed (constitutional isomers only) from the reaction of (CH3)2CHCH2CH3 with Cl2 and
faltersainse [42]

Answer:

4 monochlorination products can be formed.

Explanation:

Constitutional isomers : These are those compounds with same molecular formula but different atomic arrangement.For example: butane and 2-methly-propane.

On monochlorination of 2 methyl-butane  we will have four possibilities of product which will be constitutional isomers of each other:

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  • 2-chloro-2-methyl butane (CH_3)_2CCl-CH_2-CH_3
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