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Helen [10]
2 years ago
6

A scientist claims to have discovered an element with 30 protons in its nucleus. He determines it has 60 electrons. Why is his i

nformation False?
A.The number of electrons is always equal to the number of protons in its outer shell.
B.The number of protons, the number of neutrons, and the number of electrons are always equal.
C.The number of electrons in an atom of an element is always the same as the number of protons in its nucleus.
D.The number of electrons in an atom of an element is always half of the number of the protons in its nucleus.
Chemistry
2 answers:
Brrunno [24]2 years ago
6 0

Answer:

the number of electrons in an atom of an element is always the same as the number of protons in its nucleus

UNO [17]2 years ago
4 0

The number of electrons in an atom of an element being always the same

as the number of protons in its nucleus is False.

<h3>What is an Electron?</h3>

This is a sub-atomic particle which is negatively charged and is usually

involved in chemical reactions.

Electropositive elements donates electrons while electronegative

elements accepts electrons during chemical reactions which is why the

number of proton and electron aren't always the same.

Read more about Electrons here brainly.com/question/900457

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Favorable (Exergonic) chemical reactions:
artcher [175]

Answer:

Usually give off heat energy

Explanation:

Exergonic reactions are the ones which are spontaneous. Spontaneous reactions are indicated by the negative change in the Gibbs free energy. In order to provide characteristics for an exergonic reaction, we need to define the Gibbs free energy in terms of the enthalpy change and the entropy change:

\Delta G=\Delta H-T\Delta S

Here:

\Delta H is the enthalpy change;

\Delta S is the entropy change;

T is the absolute temperature.

In order to achieve a negative value in the Gibbs free energy change, we should have:

\Delta H - T\Delta S

This is true for all temperatures if:

\Delta H < 0, \Delta S > 0

The major term here is the change in enthalpy, notice that we wish the enthalpy change to be negative.

Negative enthalpy change corresponds to an exothermic reaction, the one which releases heat. This means exergonic reactions would usually give off heat.

4 0
3 years ago
The pOH a solution of 0.04 M HCl is:________
fredd [130]
The answer is a. 1.4

Hope it helps.
6 0
3 years ago
Read 2 more answers
Which interaction occurs when light goes into an object as heat energy?
Rufina [12.5K]

Interaction occurs when light goes into an object as heat energy is Absorbed light.

Absorbed light makes an object dark. Absorption of light is when the light is absorbed by the object and converts it into heat energy. The objects converts the wavelength of light into the larger wavelength of heat.  this makes the object warmer and produced energy. Absorption depends on the frequency of light that is transmitted. The wavelength of light defined as the distance between the the two successive troughs of the the light wave.

Therefore, Interaction occurs when light goes into an object as heat energy is Absorbed light.

To learn more about Absorbed light here

brainly.com/question/26739493

#SPJ1

8 0
1 year ago
Read 2 more answers
A closed container holds 1.33 moles of gas A 2.14 moles of gas B 1.12 moles of gas C If the total pressure within the container
ludmilkaskok [199]

Answer:

2.48 atm

Explanation:

The partial pressure of the gas is equal to the product of the mole fraction and total pressure.

So,  

P_{gas}=X_{gas}\times P

Given that:-

Moles of A = 1.33 moles

Moles of B = 2.14 moles

Moles of C = 1.12 moles

Mole fraction of B can be calculated as:-

X_B=\frac{n_B}{n_A+n_B+n_C}=\frac{2.14}{1.33+2.14+1.12}=0.47

Total pressure = 5.28 atm

Thus, partial pressure of gas B = 0.47 x 5.28 atm = 2.48 atm

8 0
3 years ago
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Why Does A Candle Go Out When You Blow On It ?
Bond [772]
Because of the wind and the cold from ur breath 
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3 years ago
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