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PolarNik [594]
2 years ago
8

A neutral atom of helium has 2 protons and _____ electrons. (Enter a whole number.)

Chemistry
1 answer:
Mariulka [41]2 years ago
6 0

Answer:

2 electrons

Explanation:

Since the atomic structure is at it's neutral state

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Jlenok [28]

Answer:(4) ----accepts  a proton

Explanation:

H2O water can produce both hydrogen and   hydroxide ions

H2O --> H+ + OH-

According to the Bronsted-Lowry theory, it can be a proton donor and a proton acceptor.this means that It can donate a hydrogen ion to become its conjugate base, or  can accept a hydrogen ion to form its conjugate acid,

When , a water molecule, H2O accepts a proton it will act as a Brønsted-Lowry base especially when dissolved in a strong acidic medium. for eg

HCl + H2O(l) → H3O+(aq) + Cl−(aq)

Here, Hydrochloric acid is a strong acid and ionizes completely in  water, since it is more acidic than water, the water will act as a base.

6 0
3 years ago
An object that is already moving can . . .
Yuri [45]
An object that is not already moving will begin to move in the direction of the larger force. An object that is already moving will change its speed and/or its direction.
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2 years ago
Which material does not melt at any temperature?
lord [1]

Answer: Option (c) is the correct answer.

Explanation:

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When we heat wood then all these substance oxidize into the atmosphere even before they could melt.

Whereas iron, sodium chloride and ethanol all are the substances which can melt at any temperature.

Thus, we can conclude that out of the given options, wood, a mixture of different substances is a material that does not melt at any temperature.

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3 years ago
What is the charge of an atom's nucleus of an atom has 20 protons, 23 neutrons, and 18 electrons?
Sidana [21]

Answer:

It would have a charge of +2.

Explanation:

A proton has a charge of +1, an elctron has a charge of -1, and a neutron has a charge of 0. Ignore the neurons since they have a charge of 0. Since there are 20 protons and 18 electrons (20-18), the overall charge of the atom is +2.

8 0
3 years ago
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