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Valentin [98]
3 years ago
11

How many neutrons would an atom of fluorine have?

Chemistry
2 answers:
disa [49]3 years ago
8 0

Answer:

the ansewer would be nine

Explanation:

lord [1]3 years ago
6 0

Answer:

9

Explanation:

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Which of the following is an example of a chemical change?
Vsevolod [243]

Answer:

D

Explanation:

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6 0
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Calcium forms ions with a charge of +2. Iodine forms ions with a charge of -1. Which of the following would represent an ionic c
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 Explanation

Ionic compound  CaI₂ is formed  when Calcium form cation ( <em>a positively charged ion</em>) by losing 2 electrons while two iodine atoms form  anion ( <em>a negatively charged ion</em>)  by  gaining one electron each.

When writing down   formula of ionic compound, the formula  of cation  is written  first followed by anion  formula. therefore  Ca is written  first  followed by I.

The numeric subscript 2 after I(iodine) indicate that 2 atoms of iodine are involved  in bonding.

5 0
3 years ago
After reading the list of physical properties above, you realize that they are describing a substance that is a
Alecsey [184]

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Which of the following measurements is used to measure the enthalpy of combustion? A. None of these B. Measuring the change in t
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In a substance, the total energy of its molecular motion is known as heat. Whereas when we measure the average energy of molecular motion of a substance then it is known as temperature.

So, any increase or decrease in temperature will lead to change in heat of a substance.

When one mole of a substance is burned then the amount of energy released  in the form of heat is known as heat of combustion.

Relation between heat and temperature is as follows.

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What initial observation led to the Alvarez asteroid-impact theory? a large undersea crater off the coast of the Yucatan Peninsu
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3 years ago
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