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2 years ago

What are the advantages of using resources such as geothermal energy, solar energy, and hydropower?

Chemistry

1 answer:

riadik2000 [5.3K]2 years ago

5 0

C. They come from energy sources that never run out.

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I need help please <33

Aliun [14]

Answer:

Option 3 is correct.

The atomic nucleus of each element has a unique number of protons. Therefore, the energy of the electron layers of the atoms of each element is unique.

If we have the energy released from each electron transfer between the layers of the atom, we can identify the element.

4 0

2 years ago

Sketch the structure of the nitrogen containing product that is formed when ethalymine reacts with water.

Igoryamba

Answer:

Here's what I get

Explanation:

Ethylamine has an N atom with a lone pair of electrons.

It can act as a Brønsted-Lowry base and accept a proton from water and become an ethylammonium ion.

The structure of the ion is shown below (there is a C atom at each of the four-way bond intersections).

3 0

2 years ago

Help Tell me the answer.

Paladinen [302]

Answer:

it's easy u just have to put them in a calculator the way they are it will give you your answer atleast I think so hope this helps

5 0

2 years ago

PV = nRT. If P = 1 atm, V = 5.0 liter, R = 0.0821 L.atm/mol.K, and T = 293 K; what is the value of n?

Leya [2.2K]

Answer:

n = 0.207 mole

Explanation:

We have,

P = 1 atm

V = 5 liter

R = 0.0821 L.atm/mol.K

T = 293 K

We need to find the value of n. The relation is as follows :

PV = nRT

Solving for n,

$n=\dfrac{PV}{RT}\\\\n=\dfrac{1\times 5}{0.0821 \times 293}\\\\n=0.207\ \text{mol}$

So, the value of n is 0.207 mol.

6 0

2 years ago

What’s 0.517 in scientific notation?

Shkiper50 [21]

Answer:

5.17 × 10^-1

Explanation:

move the decimal to the right one space.

when you move the decimal to the right its exponent becomes a negative.

6 0

3 years ago