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Serga [27]
3 years ago
5

JUST ONE MULTIPLE CHOICE QUESTION!

Chemistry
1 answer:
Butoxors [25]3 years ago
6 0
I think it’s The second option sorry if I’m wrong
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PLEASE ASAP. CHM help!
vichka [17]

Answer:

34

Explanation:

6 0
3 years ago
which energy source do you think has or could have the greatest positive impact on earth? explain your answer
wel

Answer:

All energy sources have some impact on our environment. Fossil fuels—coal, oil, and natural gas—do substantially more harm than renewable energy sources by most measures, including air and water pollution, damage to public health, wildlife and habitat loss, water use, land use, and global warming emissions

7 0
2 years ago
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Convert 10mg x cm/s^2 to Newtons (kg x m/s^2)
AlexFokin [52]
10\frac{mg*cm}{s^{2}}=10\frac{0,000001kg*0,01m}{s^{2}}=1*10^{-7}\frac{kg*m}{s^{2}}
5 0
3 years ago
An arson investigator is called to a suspicious fire that destroyed a house. The arson
Rufina [12.5K]

Answer:

potassium

Explanation:

5 0
3 years ago
When you apply 1000 joules of energy to 50 grams of water its temperature changes to 30 degrees . What was the initial temperatu
expeople1 [14]

Answer:

25.2°C

Explanation:

Given parameters:

Energy applied to the water  = 1000J

Mass of water  = 50g

Final temperature  = 30°C

Unknown:

Initial temperature  = ?

Solution:

To solve this problem, we use the expression below:

            H  = m c Ф

H is the energy absorbed

m is the mass

c is the specific heat capacity

Ф is the change in temperature

     1000  = 50 x 4.184 x (30  -  initial temperature )

     1000  = 209.2(30 - initial temperature)

      4.78  = 30 - initial temperature

      4.78  - 30  = - initial temperature

         Initial temperature  = 25.2°C

7 0
2 years ago
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