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mart [117]
3 years ago
9

At room temperature, a melting solid produces a whitish liquid. A laser beam shined through the liquid is unaffected and produce

s a distinct beam of light. The liquid is _________.
Chemistry
1 answer:
lisabon 2012 [21]3 years ago
3 0
The liquid is transparent
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What effect does a lone electron pair have on molecular shape?
loris [4]

Using the VSPER theory, the effect of lone pairs on molecular shape can be discussed.

There are 3 types of electron pairs present in a molecular shape: bond pair -bond pair, lone pair - bond pair, lone pair - lone pair.

Strength of repulsions between these three types of pair follows the order:

lone pair- lone pair > lone pair - bond pair > bond pair - bond pair

Whenever there is an addition of lone pairs to the geometry, some distortions take place which decreases the bond angles and some asymmetry is attained in the original molecular shape.

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How many periods does the modern periodic table have?
dusya [7]
There are 7 periods in the modern periodic table

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Tina drew an animal cell in her science notebook. What’s wrong with the cell?
Nuetrik [128]

Answer:

animal cells dont have chloroplast

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3 years ago
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A chemist must prepare 575.mL of 1.00M aqueous sodium carbonate Na2CO3 working solution. He'll do this by pouring out some 1.58M
igor_vitrenko [27]

Answer : The volume in mL of the sodium carbonate stock solution is 364 mL.

Explanation :

According to dilution law:

M_1V_1=M_2V_2

where,

M_1 = molarity of aqueous sodium carbonate

M_2 = molarity of aqueous sodium carbonate stock solution

V_1 = volume of aqueous sodium carbonate

V_2 = volume of aqueous sodium carbonate stock solution

Given:

M_1 = 1.00 M

M_2 = 1.58 M

V_1 = 575 mL

V_2 = ?

Now put all the given values in the above formula, we get:

1.00M\times 575mL=1.58M\times V_2

V_2=363.92mL\approx 364mL

Therefore, the volume in mL of the sodium carbonate stock solution is 364 mL.

8 0
3 years ago
Whats 0.06 in scientific notations
melomori [17]
Move the decimal<span> so there is one non-zero digit to the left of the </span>decimal<span> point. The number of </span>decimal<span>places you move will be the exponent on the 10 . If the </span>decimal<span> is being moved to the right, the exponent will be negative. If the </span>decimal<span> is being moved to the left, the exponent will be positive.</span>
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