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Harlamova29_29 [7]
3 years ago
11

Electrons are:

Chemistry
2 answers:
Zolol [24]3 years ago
8 0
A) is the correct answer
Zanzabum3 years ago
4 0

Answer:

The answer to your question is: letter A

Explanation:

A) able to move from one atom to another; the atom that loses an electron becomes positively charged and the atom that gains an electron becomes negatively charged  This is the correct answer to your question, because describe characteristics of electrons.

B) charged particles that move freely between all atoms; when an atom loses an electron it becomes negatively charged . This option is wrong because when an atom loses an electron it becomes positive, so this answer is wrong.

C) negatively charged and can move between atoms; the atom that loses an electron becomes negatively charged and the atom that gains an electron becomes positively charged . This answer is wrong because it says that an atom that loses and electron becomes negatively charge and vice versa.

D) positively charged particles that when transferred between different atoms create ions that are positively charged This answer is incorrect because electrons are negatevely charged.

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alexira [117]
Replacement reaction
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3 years ago
Three radioisotopes are being discussed in a chemistry class. Technetium-99m has a half-life of 6 hours. Rubidium-87 has a half-
8_murik_8 [283]
A likely application of a radioactive isotope with a short half-life such as Technetium-99 will be as a medical tracer. It will likely be used by a doctor to check the movement of substances within a person's body.

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Day and night are caused by... 1.the tilt of Earth's axis. 2. Earth's revolution around the sun. 3. eclipses. 4.Earth's rotation
Kryger [21]

Answer:

earths rotation on its axis

Explanation:

Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. The term 'one day' is determined by the time the Earth takes to rotate once on its axis and includes both day time and night time.

5 0
3 years ago
14) The central iodine atom in the ICl4- ion has __________ nonbonded electron pairs and __________ bonded electron pairs in its
masha68 [24]

Answer:

Two non bonded electron pairs and four bonded electron pairs

Explanation:

An image of the compound as obtained from chemlibretext is attached to this answer.

The ion ICl4- ion, is an AX4E2 ion. This implies that there are four bond pairs and two lone pairs of electrons. As expected, the shape of the ion is square planar since the lone pairs are found above and below the plane of the square. This is clear from the image attached.

7 0
3 years ago
When a hydrochloric acid solution is combined with a potassium hydroxide solution, an acid-base reaction occurs. write a balance
Verizon [17]

Answer:

HCl(aq) + KOH(aq) ⇒ KCl(aq) + H₂O(l)

Explanation:

Hydrochloric acid is an acid because it releases H⁺ in an aqueous solution.

Potassium hydroxide is a base because it releases OH⁻ in an aqueous solution.

When an acid reacts with a base they form a salt and water. This is a neutralization reaction. The neutralization reaction between hydrochloric acid and potassium hydroxide is:

HCl(aq) + KOH(aq) ⇒ KCl(aq) + H₂O(l)

5 0
2 years ago
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