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2 years ago

What is the charge on an ion that has an atomic number of 16 and contains 14e-?

1 answer:

3 0

The answer would be 2+ since the atomic number represents how many protons are in the element. In this case, there are 16 protons, but only 14 electrons, which means there are an additional 2 protons, hence the 2+ charge on the ion.

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An ionic bond is a bond that forms between

Morgarella [4.7K]

Answer: An ionic bond is a bond that forms between ions with opposite charges.

Explanation:

A chemical bond formed by the transfer of electrons from one atom to another is called an ionic bond.

For example, sodium has electronic distribution as 2, 8, 1 and chlorine has electronic distribution as 2, 8, 7.

In order to attain stability, sodium needs to lose 1 electron and chlorine needs to gain one electron. Therefore, sodium will transfer its one valence electron (forming $Na^{+}$ ion) to chlorine atom (forming $Cl^{-}$ ion) which leads to the formation of NaCl compound.

Thus, we can conclude that an ionic bond is a bond that forms between ions with opposite charges.

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2 years ago

Janice is given a mixture of alcohol and water. The teacher tells her that she can use temperature to separate these compounds.

Rina8888 [55]

Hello!

The property that is being demonstrated when Janice was given a mixture of alcohol and water and her teacher told her that she could use temperature to separate these compounds is boiling.

The boiling point is the temperature when a substance goes from liquid state to gas state. If two liquid substances with different boiling points are in a mixture, they can be separated by heating one of them to its boiling point and condensing the gas in another container in a process called distillation. The difference in boiling points of alcohols (usually lower than water) and water allows to separate them in a mixture.

Have a nice day!

8 0

3 years ago

Instant hot and cold packs are found in many common stores and work when two substances react. Depending on the substances that

OLga [1]

Answer:

b positive and b gives off heat

7 0

3 years ago

Read 2 more answers

Drag each title to the correct location <br> Classify the reactions as endothermic or exothermic

Maurinko [17]

Answer:

Explanation:

PLEASE ASK THE QUESTION CLEARLY BY GIVING YOUR REFERENCE

3 0

3 years ago

A certain radioactive isotope has a half life of one hour. I you start with 1.0 g of the material at 1:00 P. M., how many grams

geniusboy [140]

A certain radioactive isotope has a half life of one hour. I you start with 1.0 g of the material at 1:00 P. M. 0.5 grams will be present at 2:00 P.M. on the same day.

Half life is the amount of time required to reduce to one half of its initial value. The symbol of half life is $t_{1/2}$ .

<h3 /><h3>How to calculate the quantity remaining when half life given ?</h3>

It is expressed as:

$N_{t} = N_{0} (\frac{1}{2})^{n}$

where,

N(t) = quantity remaining

N₀ = initial quantity

n = half life that have passed

Now put the values in above expression we get

$N_{t} = 1.0\ g \times (\frac{1}{2})^{1}$

= $\frac{1}{2} g$

= 0.5 gram

Thus from the above conclusion we can say that A certain radioactive isotope has a half life of one hour. I you start with 1.0 g of the material at 1:00 P. M. 0.5 grams will be present at 2:00 P.M. on the same day.

Learn more about the Half life here: brainly.com/question/25750315

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6 0

2 years ago