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lawyer [7]
3 years ago
8

Propane gas (C3H8 ) combusts with oxygen gas (O2 ) to form water (H2O) and carbon dioxide (CO2 ). Write a balanced chemical equa

tion for this reaction and explain the scientific principle (statement) that requires the balancing of an equation to make it conform to reality.
Chemistry
1 answer:
Anestetic [448]3 years ago
5 0

Answer:

C3H8 + 5O2 → 4H2O + 3CO2.

Explanation:

let the balanced equation be A C3H8 + B O2 → C H2O + D CO2.

eqauting carbon hydrogen and oxygen on both sides

we get 3A = D , 8A = 2C, 2B = C + 2D

solving these three equations we get C = 4A and B = 5A

let  A = 1

we get B = 5 , C = 4, D=3

therefore the equation becomes

C3H8 + 5O2 → 4H2O + 3CO2.

mass must be conserved on both side of the equation so as to make the reaction possible as energy can neither be created nor be destroyed.

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Free_Kalibri [48]

Answer:

1 Al + 1 Cl -> 1 AlCl

Explanation:

It is already balanced.

3 0
3 years ago
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skelet666 [1.2K]

Answer:

less than 5 centimeters because it is a nonvascular plant

Explanation:

Mosses are a group of plants under the division Bryophyta. They are said to be the most primitive plant life in existence as they lack true roots, stems and leaves. They also lack vascular system, hence, they are regarded as non-vascular plants. They usually grow in very small sizes (about 0.2 - 10cm).

According to this question, Penny bought a club moss plant for her water garden and needs to know how tall the plant will grow so she know how much space it will need. Since it is a miss plant that lacks vascular tissues i.e. nonvascular, it will likely grow less than 5 centimeters in height.

7 0
3 years ago
Why does it take so much heat and pressure to create helium and other elements?
ehidna [41]

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To break down the nucleus of an atom

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In this way, is a must to have a combination of pressure and heat to destabilize an atom and take some of this subatomic particles.

4 0
3 years ago
HELPP
Natasha_Volkova [10]
I’m pretty sure it’s D.increases the activation energy for a reaction.
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