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rosijanka [135]
3 years ago
10

Friction is a force that opposes motion. When friction is present, heat is generated.

Chemistry
2 answers:
anyanavicka [17]3 years ago
8 0

Answer:

I think it is: Some of the energy is converted into thermal energy.

Explanation:

Please let me know if I am wrong so I can fix it :)

netineya [11]3 years ago
4 0
I think the answer is A
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Static electricity is
Luda [366]
Hey there !

The answer is C. build up of electrical charges by friction


Static electricity is a stationary electric charge, typically produced by friction, which causes sparks or crackling or the attraction of dust or hair.

Hope this helps !
6 0
3 years ago
How to balance this equation KClO4 → KCl + ?O2(g) and what type of reaction occurs?
Ivahew [28]

Explanation:

here is the answer to your question

7 0
3 years ago
ANSWER FAST PLZ 25 POINTS!!!!!!!!!!!!!!!
Viktor [21]

Answer:

c.

Explanation:

not to positive but I hope this is correct ‍♀️

4 0
4 years ago
What is the theoretical yield of aluminum that can be produced by the reaction of 60.0 g of aluminum oxide with 30.0 g of carbon
Varvara68 [4.7K]

Answer: 31.8 g

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of} Al_2O_3=\frac{60.0g}{102g/mol}=0.59moles

\text{Moles of} C=\frac{30.0g}{12g/mol}=2.5moles

Al_2O_3+3C\rightarrow 2Al+3CO  

According to stoichiometry :

1 mole of Al_2O_3 require 3 moles of C

Thus 0.59 moles of Al_2O_3 will require=\frac{3}{1}\times 0.59=1.77moles  of C

Thus Al_2O_3 is the limiting reagent as it limits the formation of product and C is the excess reagent as it is present in more amount than required.

As 1 mole of Al_2O_3 give = 2 moles of Al

Thus 0.59 moles of Al_2O_3 give =\frac{2}{1}\times 0.59=1.18moles  of Al

Mass of Al=moles\times {\text {Molar mass}}=1.18moles\times 27g/mol=31.8g

Thus 31.8 g of Al will be produced from the given masses of both reactants.

5 0
3 years ago
hich statements best describe gases? Check all that apply. The atoms in a gas move at high speeds. The atoms in a gas often get
Murrr4er [49]

Answer:

the atoms in a gas spread in all directions

Explanation:

:))

7 0
4 years ago
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