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3 years ago

11

An element has six valence electrons available for bonding. Which group of the periodic table does this element most likely belo

ng to?
group 2
group 4
group 16
group 18

2 answers:

Jobisdone [24]3 years ago

8 0

Answer:

Group 16

Explanation:

Chalcogens or oxygen grouo

yawa3891 [41]3 years ago

8 0

Answer:

C) or group 16

Explanation:

Edg 2020

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Helium occupies a volume of 3.8 L at –45°C. What was its initial temperature when it occupied 8.3 L?

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Answer:

98.3 gradius Celsius

Explanation:

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4 years ago

Nitrogen and hydrogen combine at a high temperature, in the presence of a catalyst, to produce ammonia. N 2 ( g ) + 3 H 2 ( g )

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Answer:

0.440 moles of NH₃ are produced

Explanation:

First of all, we need to determine the limiting reactant by the stoichiometry.

Equation reaction is: N₂(g) + 3H₂(g) ⟶ 2 NH₃(g)

1 mol of nitrogen needs 3 moles of hydrogen to react

Therefore 0.220 moles of N₂ will need (0.220 . 3) / 1 = 0.660 moles of H₂

As we have 0.717 moles of H₂ and we need 0.660, the hydrogen is the excess reagent, therefore, the N₂ is the limiting reactant

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Then, 0.717 moles of H₂ will react with (0.717 . 1) / 3 = 0.239 moles of N₂

We do not have enough N₂

After complete reaction → ratio is 1:2

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4 years ago

Bromination occurs on alkene functional groups, but NOT on alkenes found within aromatic functional group, such as the phenyl ri

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Answer:

When cinnamic acid react with bromine ,addition reaction rapidly occur on alkene functional group to form dibromo product

Explanation:

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Mashutka [201]

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3 years ago

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How many electrons are in na+1

andrew11 [14]

Answer:

10

Explanation:

Sodium has 11 electrons when it is neutral. This sodium isn't neutral, it has a +1 charge. The +1 charge means it has lost 1 electron.

11 - 1 = 10

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3 years ago

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