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Charra [1.4K]
3 years ago
15

Can a pillow have kinetic and potential energy explain how and why ?

Chemistry
2 answers:
romanna [79]3 years ago
6 0

Answer:

no

Explanation:

because its fabric

denpristay [2]3 years ago
6 0
No. the pillow is fabric
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answer answer answer answer answer answer answer answer answer answer answer answer answer answer answer answer answer answer an
ollegr [7]

Answer:

I believe it would be c

Explanation:

the cold an or warm air has no effect the plant must be on it original source

7 0
2 years ago
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During which two processes does a substance release energy?
enyata [817]

Answer:

Freezing and condensation

Explanation:

Because they are exothermic, they release energy

6 0
3 years ago
Two friends push with great force against a rock. The forces are equally strong but in opposite directions. A heavy box rests on
jolli1 [7]
The rock wouldn’t move
8 0
3 years ago
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Tetrachloroethane is a valuable nonflammable solvent. It's percent composition is 14.31% carbon, 1.20% hydrogen, and 84.49% chlo
loris [4]
First take all percents and make them grams. Since you're not given a overall molar mass you can assume it is 100 and therefore the percents are their masses.
So you have 14.31g Carbon, 1.2g Hydrogen, and 84.49g of Chlorine. Next you divide each by their molar masses to get moles of each.

Carbon= <u>14.31</u>g       Hydrogen= <u>1.2</u>g         Chlorine= <u>85.49</u>g
               12.01g                         1.01g                         35.45g
          = 1.19moles                = 1.188moles          = 2.411moles

Next you divide each of those numbers by the smallest, in this case, Hydrogen.
Thus, 
    Carbon= <u>1.19moles</u>     Hydrogen= <u>1.188moles</u>   Chlorine= <u>2.411moles</u>
                   1.188moles                      1.188moles                   1.188moles 
             =1.002                               =1                                =2.02
These are all close enough to round, so your final empirical formula is: CHCl2
Hope that helps!!
 



6 0
3 years ago
Getting empirical formula, but they also gave molar mass too.
-Dominant- [34]

Answer:

Empirical formula is PNCl₂

Explanation:

Percent composition means that 100 g of compound has x g of each element.

In 100 g of compound x, we have 26.73 g of P, 12.09 g of N, 61.18 g of Cl.

So, let's make some rules of three:

In 100 g of compound we have 26.73 g of P, 12.09 g of N, 61.18 g of Cl

In 579.43 g of compound we have:

(579.43 . 26.73) / 100 = 155 g of P

(579.43 . 12.09) / 100 = 70 g of N

(579.43 . 61.18) / 100 = 354 g of Cl

Let's convert the mass of the elements in moles.

155 g of P / 30.97 g/mol = 5 P

70 g / 14 g/mol = 5 N

354 g / 35.45 g/mol = 10 Cl

7 0
3 years ago
Read 2 more answers
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