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givi [52]
2 years ago
11

Physical properties of earth metals-

Chemistry
1 answer:
Liula [17]2 years ago
4 0

Answer:

Properties of Alkaline Earth Metals

shiny.

silvery-white.

somewhat reactive metals at standard temperature and pressure.

readily lose their two outermost electrons to form cations with a 2+ charge.

low densities.

low melting points.

low boiling points.

Explanation:

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kirill [66]

Answer:

a mixture is a material made up of two or more different substances which are physically combined.

4 0
3 years ago
How many moles of nitrogen trifluoride (NF3) can be produced from 9.65 mole of Fluorine gas (F2)
user100 [1]

Answer:

6.43 moles of NF₃.

Explanation:

The balanced equation for the reaction is given below:

N₂ + 3F₂ —> 2NF₃

From the balanced equation above,

3 moles of F₂ reacted to produce 2 moles of NF₃.

Finally, we shall determine the number of mole of nitrogen trifluoride (NF₃) produced by the reaction of 9.65 moles of Fluorine gas (F₂). This can be obtained as follow:

From the balanced equation above,

3 moles of F₂ reacted to produce 2 moles of NF₃.

Therefore, 9.65 moles of F₂ will react to to produce = (9.65 × 2)/3 = 6.43 moles of NF₃.

Thus, 6.43 moles of NF₃ were obtained from the reaction.

4 0
3 years ago
Chemistry Question! 20 Points!
Delvig [45]

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A

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I guess it's a, because nuclear decay is likely to occur when either the mass or atomic number is greater than 83.

7 0
3 years ago
Most oxygen in our atmosphere _____. has two oxygen atoms has three oxygen atoms combines with carbon has a single oxygen atom
Morgarella [4.7K]

Answer:

has Two oxygen atoms

Explanation:

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8 0
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The neutrons within the nucleus of an atom have what charge?
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Answer:

the answer is D.

Explanation:

your welcome :)

4 0
2 years ago
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