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Lunna [17]
3 years ago
10

PLEASE HELP: Which is the state change that occurs when a solid becomes a gas without becoming a liquid first?

Chemistry
1 answer:
nekit [7.7K]3 years ago
4 0
It is called sublimation
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Convert 175 g of H,O into moles.
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2H2 +O2 = 2H2O balance equation with 5 oxygen
Ivenika [448]

10H₂    +   5O₂ →    10H₂O

Explanation:

This problem deals with balancing of chemical equations. In balancing chemical equations, the law of conservation of mass must be followed. This states that:

   "In a chemical reaction, matter is neither created nor destroyed but transformed from one form to another".

This meaning of this is that; the number of atoms on each side of the expression must be the same.

                    2H₂    +   O₂ →    2H₂O

let us check is the equation above is balanced;

   

                                      2H₂    +   O₂ →    2H₂O

Elements             reactant                product

H                                  4                           4

O                                   2                           2

We can see vividly that the equation is balanced;

Now; if we have 5 oxygen gas, we multiply the equation through by 5:

 

                                 5 x          (  2H₂    +   O₂ →    2H₂O   )

     ⇒        10H₂    +   5O₂ →    10H₂O

Elements             reactant                product

H                                  20                       20

O                                  10                        10

learn more:

Balanced equation brainly.com/question/11102790

#learnwithBrainly

5 0
4 years ago
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Explanation:

7 0
3 years ago
Read 2 more answers
What is the result of having two batteries on an electric motor
aleksley [76]

Answer:

Well bro lemme tell u,

by connecting batteries, you can increase the voltage, amperage, or both.

Explanation:

8 0
3 years ago
How can you tell if an element has been oxidized or reduced in a reaction?
fomenos
Gaining of electrons is reduction and loss of electrons is oxidation. 

<em>Hope this helped! :)</em>
7 0
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