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3 years ago

What is electrical energy

2 answers:

8 0

Electrical energy is a energy resulting from electric charges or existing kinetic energy. It does work or applies force to move an object, using electricity. In the case of electrical energy, the force is electrical attraction or repulsion between charged particles.

Gnesinka [82]3 years ago

6 0

Electrical energy is a type of energy resulting from the flow of electric charge.

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How can the atomic number of nitrogen be determined

IRINA_888 [86]

<h2>Answer and Explanation </h2>

Nitrogen is present in group 5. It contains 7 electrons and protons. It has 2 electrons in its first shell and 5 electrons in second shell. In order to determine the atomic number of nitrogen, we should know about the number of protons or electrons of the atom.

Atomic number is denoted by Z. Z= number of protons. Hence, nitrogen consists of seven protons as well as seven electrons. Therefore, its atomic number (Z) will also be 7.

5 0

3 years ago

I need help if anyone will help plz

maksim [4K]

Answer:

Explanation:

If you look at the problem, and the coefficients (the little numbers on the bottom) you will see that on the reactant side you get a total of 11, you look over to the product side and you also get a total of 11.

B. is wrong because they’re are the same amounts

C.is wrong because they have the same amount of carbon

D. Now similar to B but slightly different the matter is the reactant side I’m pretty sure is equal to the amount on the product side.

If I had to take a strong guess though I would choose D just because the question is asking for the one that shows The law of conservation of mass. Pls make me brainlist

7 0

3 years ago

For the following reaction in aqueous solution, identify all those species that will be spectator ions. Select all that apply.

uranmaximum [27]

The reaction is incorrect. The correct reaction is: Na₂SO₄ + Hg(NO₃)₂ → HgSO₄ + 2NaNO₃. The options are:

A. Hg₂SO₄

B. Na₂SO₄

C. Na⁺

D. NO₃⁻

E. SO₄⁻²

F. Hg₂(NO₃)₂

G. NaNO₃

H. Hg⁺²

Answer:

C, D, E, H

Explanation:

The ions are formed after dissociation of the compound in the solution. When they're negatively charged, they're called anions, when they're negatively charged, they're called cations. If the ion is presented on both sides of the reaction, it is called a spectator ion.

Thus, the reaction given:

Na₂SO₄ + Hg(NO₃)₂ → HgSO₄ + 2NaNO₃

So, let's do the dissociation.

Na₂SO₄ is formed by the ions Na⁺ and SO₄⁻²;

Hg(NO₃)₂ is formed by the ions Hg⁺² and NO₃⁻;

HgSO₄ is formed by the ions Hg⁺² and SO₄⁻²;

NaNO₃ is formed by the ions Na⁺ and NO₃⁻.

Thus, the spectator ions are Na⁺, SO₄⁻², Hg⁺², and NO₃⁻.

7 0

4 years ago

Complete the following chemical equation. 2KMnO4 + Heat ----------- + MnO2 + -----------

Lady bird [3.3K]

Answer:

2 KMnO4 → K2MnO4 + MnO2(s) + O

Explanation:

Here, the oxidation state of manganese changes as the potassium permanganate (oxidation state +7) decomposes to potassium manganate (oxidation state +6) and manganese dioxide (oxidation state +4). Oxygen gas is also liberated.

8 0

3 years ago

Solid phosphorus and chlorine gas react to form phosphorus pentachloride gas .write a balanced chemical equation for this reacti

EleoNora [17]

Balanced <span>chemical equation :

</span><span>2 P + 5 Cl</span>₂<span> = 2 PCl</span>₅<span>

hope this helps!

</span>

7 0

3 years ago

Read 2 more answers

What is electrical energy￼

What is electrical energy