3 years ago

How are the elements contained within a group on the periodic table related? (select all that apply.)?

1 answer:

8 0

These atoms tend to be vertically aligned on the tabe. These elements have the same number of electrons on their outermost orbit and tend to share one or more major chemical property, such as being metal or being liquid at room temperature.

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Transpiration is the process by which ____.

saul85 [17]

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Plants add water to the atmosphere

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3 years ago

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Using the balanced equation below, how many grams of cesium fluoride would be required to make 73.1 g of cesium xenon heptafluor

jenyasd209 [6]

Answer:

27.9 g

Explanation:

CsF + XeF₆ → CsXeF₇

First we convert 73.1 g of cesium xenon heptafluoride (CsXeF₇) into moles, using its molar mass:

Molar mass of CsXeF₇ = 397.193 g/mol

73.1 g CsXeF₇ ÷ 397.193 g/mol = 0.184 mol CsXeF₇

As 1 mol of cesium fluoride (CsF) produces 1 mol of CsXeF₇, in order to produce 0.184 moles of CsXeF₇ we would need 0.184 moles of CsF.

Now we convert 0.184 moles of CsF to moles, using the molar mass of CsF:

Molar mass of CsF = 151.9 g/mol

0.184 mol * 151.9 g/mol = 27.9 g

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Jordan wonders why there is dew on the grass in the morning. He asks a few friends to see what they think. His friend Tasha says

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No because dew is water droplets that come from condensation rather than from rain coming at night

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Why do things dissolve faster in hot water

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Because of the heat, steam

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Silicon is located in this spot. What is it most likely to be.

dexar [7]

Answer:I would have to say d because isn’t that what they make phones out of and it has to be safe right ?

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