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professor190 [17]
3 years ago
15

Which of these is a mixture?? A.) salad B.) potassium C.) water D.) sugar

Chemistry
2 answers:
tensa zangetsu [6.8K]3 years ago
8 0
Salad would be a mixture because it is not chemically combined, if needed you could physically take it apart. So your answer would be A.)
vladimir2022 [97]3 years ago
5 0
The answer would be salad
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Whats the ratio of KMnO4:KCl =
Natasha2012 [34]
(K+ + MnO4- )+(K+ +Cl- )
This would be a one to one ratio as the charges of each component are equal 
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3 years ago
Certain compound contains 7.3% carbon, 4.5% hydrogen, 36.4% oxygen, and 31.8% nitrogen. It’s reality molecular mass is 176.0. Fi
erastovalidia [21]

Answer:

The answer to your question is:

Explanation:

Data

carbon        7.3%          =     7.3g

hydrogen    4.5%         =      4.5g

oxygen       36.4%         =     36.4 g

nitrogen     31.8%         =     31.8 g

Now

For carbon

                    12 g --------------------1 mol

                    7.3 g     -------------     x

                       x = 7.3/12 = 0.608 mol

For hydrogen

                 1 g   --------------------  1 mol

                 4.5 g  ------------------    x

                   x = 4.5 mol

For oxygen

             16 g ------------------- 1 mol

             36.4 g ----------------    x

             x = 2.28 mol

For nitrogen

              14 g   ----------------   1 mol

              31.8 g ---------------    x

             x = 2.27 mol

Now divide by the lowest result, the is 0.608 from carbon

carbon              0.608/0.608 = 1

hydrogen           4.5/ 0.608 = 7.4

oxygen              2.28/0.608 = 3.75

nitrogen             2.27/0.608 = 3.73

Empirical formula = CH₇O₄N₄

     

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2 years ago
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Answer:

abcabcabca

Explanation:

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3 years ago
97
alex41 [277]
B

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3 years ago
Do substances react by mass? Yes or no explain
daser333 [38]

yes substances Do  react by mass

5 0
3 years ago
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