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3 years ago

Which of the following is true in regard to ions?

2 answers:

7 0

<span>An ionized atom has a number of protons that is unequal to the number of electrons. - I took the Penn exam, 100% sure!</span>

Marysya12 [62]3 years ago

5 0

<u>Answer:</u> The correct answer is Option A.

<u>Explanation:</u>

There are 3 subatomic particles present in an atom. They are: protons, electrons and neutrons.

Protons carry positive charge, electrons carry negative charge and neutrons does not carry any charge.

Any neutral atom has an equal number of protons and electrons. An ion is formed when atom looses or gain electron.

If an atom gains electrons, it will have more number of electrons than protons. Thus, it will carry negative charge and form an anion.
If an atom looses electrons, it will have less number of electrons than protons. Thus, it will carry positive charge and forms a cation.

Thus, an ionized atom will always have unequal number of protons and electrons.

Hence, the correct answer is Option A.

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Define Gravitational Potential Energy.

Anna11 [10]

Answer:

Gravitational energy or gravitational potential energy is the potential energy a massive object has in relation to another massive object due to gravity. It is the potential energy associated with the gravitational field, which is released when the objects fall towards each other.

Explanation:

6 0

3 years ago

Which expression is equal to the number of milliliters(mL)in 12.5 liters(L)?

erastova [34]

There are 1000 mL in a L.

12.5 L = 12.5(1000) mL = 12500 mL

12500 mL = 12.5 L

Hope this helps!

8 0

3 years ago

Read 2 more answers

Why do gases have fluidity

hoa [83]

We regard liquid and gases as fluid because they they have very less or almost negligible force of attraction and very large intermolecular spaces and hence they can flow in any direction. Same is the reason of its fluid nature.

3 0

3 years ago

Read 2 more answers

Consider the following balanced thermochemical equation for a reaction sometimes used for H₂S production: 1/8 S₈(s) + H₂(g) → H₂

castortr0y [4]

ΔH = -15.78 KJ when 25.0 g of S₈ reacts.

<h3>What is Balanced Chemical Equation ?</h3>

The balanced chemical equation is the equation in which the number of atoms on the reactant side is equal to the number of atoms on the product side in an equation.

The given reaction balanced equation is:

1/8 S₈(s) + H₂(g) → H₂S(g) ΔH = -20.22kj

Now,

When 1 mol will react, then ΔH = -20.2 × 8

= -161.6 KJ

When 1 mol of S8 = 8 × 32 g

= 256 g

When 256g of S8 react ΔH = -161.6 KJ

When 1 g reacts, ΔH = $\frac{-161.6}{256}$

=- 0.63125 KJ

When 25 g reacts, ΔH = - 0.63125 × 25

= -15.78 KJ

Thus from the above conclusion we can say that ΔH = -15.78 KJ when 25.0 g of S₈ reacts.

Learn more about the Balanced chemical equation here: brainly.com/question/26694427

#SPJ4

4 0

2 years ago

A gas at 20.0°C is increased to 40.0°C, will its volume: if the original volume is 1.00 l, what would the new volume be

Leona [35]

Answer:

2.0 l

Explanation:

When for 20 °C volume is 1 l then for 40°C is going to be 2 l

20-------1

40-------x

x=(40*1):20

6 0

3 years ago