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alexandr402 [8]
2 years ago
13

Identify the type of reaction represented by each equation. a: h2 cl2 → 2hcl b: ch4 2o2 → co2 2h2o equation a represents a r

eaction, and equation b represents a reaction.
Chemistry
1 answer:
EastWind [94]2 years ago
3 0

The right response is combustion reaction and synthesis reaction.

A hydrocarbon reacting chemically with oxygen to produce carbon dioxide and water is known as a combustion reaction.

hydrocarbon + O_{2} → CO_{2}  + H_{2}O

The term "synthesis reaction" refers to the chemical process wherein elements combine to generate a single product.

A + B → AB

Because hydrogen and chlorine combine to form the molecule of hydrochloric acid in their elemental states, this process is regarded as a synthesis reaction.

For A : H_{2} + Cl_{2} → 2HCl

Because hydrogen gas and chlorine gas are mixed in their elemental states to create the hydrochloric acid molecule, this process is regarded as a synthesis reaction.

For B: CH_{4}  + 2O_{2} → CO_{2} + 2H_{2}O

Because methane and oxygen combine to create carbon dioxide and water molecules, this reaction is regarded as a combustion reaction.

Learn more about combustion reaction here:

brainly.com/question/14521417

#SPJ4

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Acid rain is precipitation that has become acidic over time. It is caused by pollution from human activities. Acid rain is harmf
Phantasy [73]

Answer:

answer A makes the most sense

Explanation:

it's the only one the describes measuring the acid in the air from a factory (humans) I may be wrong tho

6 0
3 years ago
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How do you balance these two chemical equations?
Vlada [557]
In order to balance both of the reactions you need to make sure that both sides of the reaction have the same number of atoms for each atom in order to follow conservation of mass.

KCl+F₂→KF+Cl₂
Notice how in the above reaction there are two chlorine atoms on the products side (right side) and only one atom of chlorine on the reactants side (left side).  you want both the reactants and products side to have the same amount chlorine and to do this multiply KCl by 2.  Fluorine however, has 2 atoms on the reactant side and 1 atom on the product side.  to fix this multiply KF by 2. <span>Therefore the balanced reaction is: 2KCl+F₂→2KF+Cl₂
</span>notice how both sides of the reaction have equal numbers of each atom.

Mg+HCl→MgCl₂+H₂
the above reaction has 2 atoms of H on the products side and only 1 atom of H on the reactants side.  That means you have to multiply HCl by 2.  Now you have the equation Mg+2HCl→MgCl₂+H₂. As you can see now we have equal numbers of all the atoms on both sides which means that that is the balanced equation.

I hope this helps.  Let me know if you have any further questions or need anything to be clarified.
6 0
4 years ago
Calculate the acceleration of a car if its speed increases from 4.0 m/s to 16 m/s in 3.7 s.
ioda

Answer:

3.24m/s^2

Explanation:

The following data were obtained from the question:

U = 4m/s

V = 16m/s

t = 3.7secs

Acceleration is change in velocity with time i.e

a = (V — U) / t

a = (16 — 4) / 3.7

a = 12/3.7

a = 3.24m/s^2

8 0
3 years ago
Which of the follow statements about isotopes is NOT correct?
worty [1.4K]

Answer: B- Isotopes are often used for dating artifacts and fossils is incorrect.

Explanation: I hope that helped

8 0
3 years ago
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