4 years ago

Please help!!!!!!! NOW

Chemistry

1 answer:

anastassius [24]4 years ago

3 0

The answer to this question would be option A, tornado.

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You have 1 mole of a gas at STP. If you apply the ideal gas law what is the approximate volume of the gas?

goldfiish [28.3K]

Answer:

A) 22.4L

Explanation:

we know, ideal gas law states

PV=nRT

V=nRT/P

At STP,

T= 273.15K P=1atm R=0.082L.atm/mol/K n=1 mole

V=(1*0.082*273.15)/ 1

V=22.4L

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3 years ago

The most reactive metals are located at the a)top b)far-left c)far-right d)center of the periodic table.

Jlenok [28]

Answer:

Bottom left corner of the periodic table

Explanation:

The elements toward the bottom left corner of the periodic table are the metals that are the most active in the sense of being the most reactive. Lithium, sodium, and potassium all react with water, for example.

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3 years ago

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"Tropo" is a Greek prefix meaning to change or to turn. Why is troposphere an appropriate name for the layer of atmosphere close

tia_tia [17]

Answer:

The troposphere is the layer in which weather occurs, meaning conditions are constantly changing.

Explanation:

i looked it upl

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4 years ago

Predict the order of elution if you were to attempt to separate using column chromatography on silica gel and with a gradient el

Minchanka [31]

Answer:

Follows this order: B=> A => C.

Explanation:

NB: kindly check the attachment for the diagram of compounds A, B and C.

Elution is a very important concept in chromatography separation techniques. It deals with the use of eluent in the removal of an adsobate from an adsorbent. The principle behind Elution is just about how polar the solvent is.

So, in this question Compound B will go with the Elution first because of its polarity. Compound B has lesser polarity as compared to Compounds A and B.

Compound A will then elutes second because of its polarity too as resonance increases its polarity.

Last, compound C elutes because it has the highest polarity which is caused by electronegative atoms.

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3 years ago

What is the difference between the formula of magnesium oxide and oxygen?

lianna [129]

Oxygen is an element, symbol O

Magnesium oxide is an ionic compound, formula MgO

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3 years ago