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kow [346]
3 years ago
5

Read the passage. Look at the underlined section marked number 9. There may be a mistake in the way the sentence is written. If

you find a mistake, choose the answer that corrects the mistake. If there is no mistake, choose ‘Correct as is.’ A) Correct as is. B) Only the ones who were known to be experts with the needle were invited for an afternoon of quilting, or all others came later for an evening of fun and dancing. C) Only the ones who were known to be experts with the needle were invited for an afternoon of quilting, for all others came later for an evening of fun and dancing. D) Only the ones who were known to be experts with the needle were invited for an afternoon of quilting, and all others came later for an evening of fun and dancing.
Chemistry
2 answers:
ludmilkaskok [199]3 years ago
8 0

Answer:

D

Explanation:

I just got it right on Usatestprep.

Alexus [3.1K]3 years ago
5 0

The answer is D just did it

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What is the concentration of a potassium iodate solution after you complete the following porcedure? Pipette 10 mL of a 0.31 M p
zubka84 [21]

<u>Given:</u>

Initial concentration of potassium iodate (KIO3) M1 = 0.31 M

Initial volume of KIO3 (stock solution) V1 = 10 ml

Final volume of KIO3 V2 = 100 ml

<u>To determine:</u>

The final concentration of KIO3 i.e. M2

<u>Explanation:</u>

Use the relation-

M1V1 = M2V2

M2 = M1V1/V2 = 0.31 M * 10 ml/100 ml = 0.031 M

Ans: The concentration of KIO3 after dilution is 0.031 M

4 0
3 years ago
Burning gasoline is an _____________ reaction.
rusak2 [61]

Answer:

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5 0
3 years ago
Read 2 more answers
What is the mass of 3.75 moles of NaCI? ( Na= 22.99g/mol, CI= 35.45 g/mol)
seraphim [82]

Answer:

219.15 grams

Explanation:

What is the mass of 3.75 moles of NaCI? ( Na= 22.99g/mol, CI= 35.45 g/mol)

Mole of Na = 22.99g

Mole of Cl = 35.45g

For NaCl we have ratio of 1:1, so we have 1 Na for every Cl

So we just add the two together to get the molar mass of NaCl which is

22.99 + 35.45 = 58.44g/mol

And we know we have 3.75 moles of NaCl so we multiply that by the molar mass of NaCl to get our answer

3.75 x 58.44 = 219.15grams

6 0
3 years ago
What general rule can be followed when choosing a type of solvent to dissolve a particular solid?
Fittoniya [83]
 <span>the polarity of the solute or the solvent. 

for example: 
oil will not mix with water because oil molecules are nonpolar however water moleculses are polar. so, they will not mix with each other. 

when we put sodium chloride in water, sodium chloride will be easily dissoved. because both sodium chloride and water are polar. 

in other case, if we put sodium chloride and hexane together. sodium chloride will not dissove in hexane, because hexane is a nonpolar solvent. 

finally, if we try to mix hexane and bromine together, they will mix uniformly. because both hexane and bromine are nonpolar. (note: most diatomic molecules are nonpolar, such as hydrogen gas, oxygen gas, chlorine gas, etc. ) 

so just remember, nonpolar and nonpolar will dissovle each other. and polar and polar will dissolve each other.</span>
4 0
4 years ago
What is the mass/volume percent of a solution containing 32.6g of CaCl2 in 375mL of water?
Jlenok [28]
The mass/volume percent of solution is 8.69% (m/v).
5 0
3 years ago
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