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Stells [14]
3 years ago
12

Which of the following identifies the initial type of energy needed to power a hydro plant?

Chemistry
1 answer:
MAXImum [283]3 years ago
7 0

Answer:

kinetic

Explanation:

kinetic energy starts the motion of water which in turn converts electricity

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denpristay [2]
Hydrogen and oxygen! Happy holidays btw
3 0
3 years ago
PLEASe help. How many ions? With picture.
Likurg_2 [28]
Since this equation is balanced, we know that the law of conversation of mass id applied, and we could calculate easily. 

Na=  2
NO3= 2
Ca= 1
<span>Cl= 1</span>

5 0
3 years ago
What's the molar mass of Li3p
spayn [35]

Answer:

51.79g Li₃P.

Explanation:

Li has a molar mass of 6.94 g (since there are 3, you multiply it 3 times) and P has a molar mass of 30.97 g. 6.94(3) + 30.97 = 51.79g.

4 0
3 years ago
The mass number for an atom is numerically equal to which quantity
Misha Larkins [42]

Answer:

The mass number of an atom is equal to the number of protons plus the number of neutrons that it contains. In other words, the number of neutrons in an atom is its mass number minus its atomic number.

Explanation:

protons

The mass number of an atom is its total number of protons and neutrons. Atoms of different elements usually have different mass numbers , but they can be the same. For example, the mass number of argon atoms and calcium atoms can both be 40.

4 0
3 years ago
If the graph of y = a x 2 + b x + c does not intersect the x -axis, then what is true about the roots? Both are real roots. Both
Reptile [31]

Answer:

Both roots are imaginary roots.

Explanation:

Consider these things:

If we try to solve x²+1 = 0, notice that we aren't able to solve the equation in Real Number system because there are no negative outputs for quadratic function.

Remember that quadratic function has range greater or equal to the max-min value.

x-axis plane represents the solutions of that equation. If a graph intersects x-axis plane then it has a solution.

While a graph that doesn't have any intersects on x-plane, it means that the equation for that graph doesn't have real solutions but imaginary solutions.

As you may notice some of parabola graph has one intersect, two intersects or none. One intersect is one solution to the equation — Two intersects are two solutions of the equation and lastly, no intersects mean that no real solutions and remain only imaginary solution.

8 0
3 years ago
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