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Slav-nsk [51]
4 years ago
5

Think of what the water is doing at different stages at a dam. The water stored behind a dam is an example of _______ energy. As

the water flows through the dam, it turns a turbine of a generator, and so the kinetic energy is converted to ______ energy.
The answer choices for both blanks are:

Mechanical
Electrical
Potential
Checimal
Nuclear
Radiant.
Chemistry
2 answers:
Andru [333]4 years ago
8 0

Answer:

That is not the right answer.

The correct answers are, potential and electrical.

Hope I have helped.

I had the same question and that was the correct answer. :)

Svet_ta [14]4 years ago
6 0

Answer:

potential and electrical

Explanation:

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Name two luminous objects other than the sun
jekas [21]

Answer: flame in a lamp, tube light, electric bulb

Explanation:

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Which of the following combinations of information would allow you to calculate concentration in ppmv? Check all that apply. mol
kakasveta [241]

Answer:

Explanation:

-mass of solute, density of solute, and volume of solution

-volume of solute, mass of solution, and density of solution

3 0
3 years ago
PLEASE HELP!! 15 POINTS!<br> What could the fourth quantum number of a 2s^2 electron be?
Veronika [31]

Answer:

option D

Explanation:

first quantum number of a 2s2

n = 2

second quantum number of a 2s2

l = 0 to n-1

l = 0, 1

For s orbital

l = 0

third quantum number of a 2s2

ml = - l to +l

ml = 0

fourth quantum number of a 2s2 electron be

?½ = spin down

½ = spin up

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7 0
3 years ago
How many moles of KCl are in <br> 28g of KCl?
eduard

Answer:

0.38 moles KCl

Explanation:

(28 g KCl) / (74.55 g/mol KCl) = 0.38 moles KCl

7 0
3 years ago
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What is the density of chlorine gas (MM = 71.0glmol) at 1.50 atm and 25.0C
IrinaVladis [17]

Answer: D=4.35g/L

Explanation:

The formula for density is D=\frac{M}{V}. M is mass in grams and V is volume in liters.

Since we are give pressure and temperature, we can use the ideal gas law to find moles/volume. FInding moles/volume would give us the base for density. All we would have to do is convert moles to grams.

Ideal Gas Law: PV=nRT

\frac{n}{V} =\frac{P}{RT}

\frac{n}{V}=\frac{1.50 atm}{(0.08206Latm/Kmol)(25+274.15K)}

\frac{n}{V} =\frac{0.061309mol}{L}

Now that we have moles, we can use molar mass of chlorine gas to find grams.

0.061309mol*\frac{71.0g}{mol} =4.3529g

With our grams, we can find our density.

D=\frac{4.3529g}{L}

We need correct significant figures so our density is:

D=\frac{4.35g}{L}

5 0
4 years ago
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