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Andrej [43]
3 years ago
12

The water behind a dam has potential energy that can be converted to kinetic energy to turn a turbine

Chemistry
2 answers:
Alona [7]3 years ago
7 0
It's a 50\50% but I am going to say true because of hydroelectric power

<span />
Savatey [412]3 years ago
6 0
This is true because the water would have gravitational potential energy that is caused by the water being held back by the dam and the water wanting to flow down.

This can be converted into kinetic energy when given the chance to, such as having a turbine on the dam.

Hope this helps! :)
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The size of the gas particles compared to the overall volume of the gas is 22.4 L
jeka57 [31]
Well. Yeah. Basically.

1 mole of any gas is 22.4 L. 

Not really sure if that answers your question but that's what i know. 
Anyway if we are talking about the size then usually gases are filled with empty space.
4 0
4 years ago
What does group mean
Alex787 [66]

Answer:

a number of people or things that are located close together or are considered or classed together.

Explanation:

4 0
3 years ago
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What is the density of a copper blocks if it has a mass of 43.5 grams and a volume of 4.85 cm^3?
Marianna [84]
8.97 g/cm^

D=m/v
D=43.5/4.85cm^3
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7 0
3 years ago
How many grams are in 4.5 moles of chlorine gas (Cl2)?
k0ka [10]

Answer:

no of moles=mass in gm÷molar mass so let x be the mass in gm

4.5=x÷35.5×2

x=4.5×35.5×2 grams

x=319.5 gm

Explanation:

formula

6 0
3 years ago
A cup of hot water cannot melt a large block of ice. However, the same block melts when dropped into a lake. This is because
masya89 [10]

Explanation:

When a large block of ice is placed in a hot cup of water then some of the ice will melt into the cup. As a result, when ice melts then after sometime temperature of cup will become equal to the temperature of ice.

Therefore, ice won't melt further as surface area of cup is small so, only some of the ice will melt into it.

Whereas when same block melts when dropped into a lake it completely melts because lake has large surface area and hence, ice will melt into it easily. This is also because there is different in temperature of both ice and lake.

So, ice will melt into it as temperature of ice will be less than the temperature of lake.

6 0
4 years ago
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