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stepan [7]
3 years ago
6

Can someone please help me I need the answer right now

Chemistry
1 answer:
loris [4]3 years ago
3 0

Answer:

atom 2 and 3 or d is should be your answer

Explanation:

.....

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Nothing sus please haha<br> http://quizprank.xyz/message.php?id=n8q76jgf
SVEN [57.7K]

Answer:

lol thanks for the point btws! i really needed them for my math test questions have a good day btw! good vibes!

Explanation:

8 0
3 years ago
A solution contains an unknown mass of dissolved barium ions. When sodium sulfate is added to the solution, a white precipitate
AlladinOne [14]

The given question is incomplete. The complete question is as follows.

A solution contains an unknown mass of dissolved barium ions. When sodium sulfate is added to the solution, a white precipitate forms. The precipitate is filtered and dried and then found to have a mass of 212 mg. What mass of barium was in the original solution? (Assume that all of the barium was precipitated out of solution by the reaction.)

Explanation:

When Ba^{2+} and Na_{2}SO_{4} are added  then white precipitate forms. And, reaction equation for this is as follows.

       Ba^{2+} + SO^{2-}_{4} \rightarrow BaSO_{4}

It is given that mass (m) is 212 mg or 0.212 g (as 1 g = 1000 mg). Molecular weight of BaSO_{4} is 233.43.

Now, we will calculate the number of moles as follows.

  No. of moles = mass × M.W

                        = \frac{0.212}{233.43}

                        = 0.00091 mol of BaSO_{4}

Hence, it means that 0.00091 mol of Ba^{2+}. Now, we will calculate the mass as follows.

       Mass = moles × MW

                 = 0.00091 \times 137.327

                 = 0.124 grams or 124 mg of barium

Thus, we can conclude that mass of barium into the original solution is 124 mg.

8 0
3 years ago
Plzzz helpp mee easapp ndjjs
klemol [59]
I think it is with screens l, chemicals, and filters
I hope this helped
4 0
2 years ago
Read 2 more answers
What must differ between the atom of two different element easy 10 POINTS
sweet [91]
They will have different compounds
6 0
3 years ago
Read 2 more answers
Name the following compound: CH3 – CH2 – CH = CH – CH3<br><br> Fill In The "___"<br><br> 2-Pen ___
swat32

Answer: 2-Pentene

Explanation:

The longest continuous carbon chain that contains the double bond is identified to be Pentene, since it has five carbon atoms.The presence of the double bond makes it an Alkene, hence the -ane ending of the parent Alkane is changed to -ene.

We then do our numbering in the direction that gives the position of the double bond a lower number. Numbering from right to left, the position of the double bond is at carbon atom 2 going to 3, which is lower compared to the other direction.

Hence the name of the compound is 2-Pentene.

4 0
3 years ago
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