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ankoles [38]
2 years ago
5

Cover echo de cobalto

Chemistry
1 answer:
Alex17521 [72]2 years ago
7 0

Answer: que?

Explanation:

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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
3 years ago
What happens to the grass molecules when it is eaten by the zebra?
Lubov Fominskaja [6]

<u>Answer:</u>

<u>read below</u>

<u>Explanation:</u>

<u>When the zebra eats grass, it gets energy from the sun that has been stored in the grass. Similarly, the lion obtains energy stored in the zebra. The zebra and lion both obtain the sun's energy indirectly from the energy that the grass obtained through photosynthesis. </u>

3 0
3 years ago
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Mountains and valleys are some of the features found in the layer of rock at Earth's surface called the
loris [4]

Answer:

Narrow

Explanation:

Narrow

5 0
3 years ago
Which gas sample at STP has the same total number of molecules as 2.0 liters of CO2 (g) at STP
jek_recluse [69]
 Avogadro's hypothesis says that 2.0 L of Cl2 (g) occupies the same volume as 2.0 L of CO2. So <span>(2.0L of Cl2 (g) 

</span>
6 0
3 years ago
What happens to two substances when they dissolve?
bogdanovich [222]

Answer:

A solution is made when one substance called the solute "dissolves" into another substance called the solvent. Dissolving is when the solute breaks up from a larger crystal of molecules into much smaller groups or individual molecules. This break up is caused by coming into contact with the solvent

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