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GenaCL600 [577]
3 years ago
5

♔♔Why is mass conserved in chemical reactions?❦❦❦​

Chemistry
2 answers:
Slav-nsk [51]3 years ago
7 0

Answer:

Heya..

here's ur answer ⤵️

Explanation:

Mass is never lost or gained in chemical reaction.

we say that mass is always conserved. In other words the total mass of products at the end of the reaction is equal to the total mass of the Reactants at the beginning. This is because no atom are created or destroyed during chemical reactions.

<em>Hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em><em>u</em><em> </em>

Allushta [10]3 years ago
5 0

Answer:

Atoms are not created or destroyed by chemical reactions. Also, matter is neither created nor destroyed, it just changes form. Matter cannot be created or destroyed. ... The Law of Conservation of Mass states that in a chemical reaction the total mass of reactants is equal to the total mass of products.

Explanation:

According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants. The law of conservation of mass is useful for a number of calculations and can be used to solve for unknown masses, such the amount of gas consumed or produced during a reaction.

For example, when wood burns, the mass of the soot, ashes, and gases equals the original mass of the charcoal and the oxygen when it first reacted. So the mass of the product equals the mass of the reactant.

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<span>6.12<span>(<span>1024</span>)</span></span><span>=<span><span>(6.12)</span><span>(<span><span>1e</span>+24</span>)</span></span></span><span>=<span><span>6.12e</span>+24</span></span> <span> = </span>
6 0
3 years ago
4 Nitrogen monoxide reacts with oxygen like this:
olga2289 [7]

a. mol O₂=0.5

b. volume O₂ = 25 cm³

c. i. the total volume of the two reactants = 75 cm³

c. ii. the volume of nitrogen dioxide formed = 50 cm³

<h3>Further explanation</h3>

Reaction

2NO(gas) + O₂(gas) ⇒ 2NO₂ (gas)

a.

mol NO = 1

From the equation, mol ratio NO : O₂ = 2 : 1, so mol O₂ :

\tt \dfrac{1}{2}\times 1=0.5

b.

From Avogadro's hypothesis, at the same temperature and pressure, the ratio of gas volume will be equal to the ratio of gas moles  

Because mol ratio NO : O₂ = 2 : 1, so volume O₂ :

\tt \dfrac{1}{2}\times 50~cm^3=25~cm^3

c.

i. total volume of reactants : 25 cm³+ 50 cm³=75 cm³

ii. the volume of nitrogen dioxide formed :

mol ratio NO : NO₂ = 2 : 2, so volume NO₂ = volume NO = 50 cm³

6 0
2 years ago
Is this an aromatic hydrocarbon? Why or why not?
swat32
The correct answer is D

3 0
3 years ago
Read 2 more answers
2) Two students are running in a cross country race. One has a mass of 60 kg, while the other has a mass of 70 kg. If they are b
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Answer:

The second student with mass 70kg has more momentum

Explanation:

Using the formula:

p = m × v

Where;

p = momentum (kgm/s)

m = mass (kg)

v = velocity (m/s)

According to this question, two students are running in a cross country race.

Student 1 has the following; m = 60kg, v = 7m/s

Student 2 has the following; m = 70kg, v = 7m/s

Using p = mv

Student 1, p = 60 × 7 = 420 kgm/s

Student 2, p = 70 × 7 = 490 kgm/s

From the result of the above calculations, student 2 with mass 70kg has more momentum.

4 0
2 years ago
Which of the following hypotheses is testable by using the scientific method?
Paraphin [41]

Answer:

D

Explanation:

Because it is the only was that you can test using the scientific method.

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