All categories

3 years ago

In which way does a balanced chemical equation demonstrate the conservation of matter?

Chemistry

1 answer:

777dan777 [17]3 years ago

8 0

Answer:

A. It shows the same number of atoms of each element on both sides of the equation.

Explanation:

A balanced chemical equation demonstrates the conservation of matter by showing the number of atoms of each element on both sides of the equation or expression.

According to the law of conservation of matter, matter is neither created nor destroyed in the course of a chemical reaction but atoms are rearranged.

Based on this premise, the number of atoms or moles on both sides of the expression must be equal.
If there are 3 atoms of carbon on one side, the product must also reflect 3 atoms of carbon.

You might be interested in

Number of grams of hcl that can react with 0.500 grams of Al(OH)3

vlabodo [156]

Answer:

0.7g of HCl

Explanation:

First, let us write a balanced equation for the reaction between HCl and Al(OH)3.

This is illustrated below:

Al(OH)3 + 3HCl —> AlCl3 + 3H2O

Next, let us obtain the masses of Al(OH)3 and HCl that reacted together according to the equation. This can be achieved as shown below:

Molar Mass of Al(OH)3 = 27 + 3(16+1)

= 27 + 3(17) = 27 + 51 = 78g/mol.

Molar Mass of HCl = 1 + 35.5 = 36.5g/mol

Mass of HCl from the balanced equation = 3 x 36.5 = 109.5g

Now we can obtain the mass of HCl that would react with 0.5g of Al(OH)3. This can be achieved as follow:

Al(OH)3 + 3HCl —> AlCl3 + 3H2O

From the equation above,

78g of Al(OH)3 reacted with 109.5g of HCl.

Therefore, 0.5g of Al(OH)3 will react with = (0.5 x 109.5)/78 = 0.7g of HCl

7 0

3 years ago

A sample of krypton gas in a container of volume 1.90 L exerts a pressure of 0.553 atm at 21 Celsius. How many moles of gas are

NeTakaya

Explanation:

pv = nRT

n= PV/RT

n =0.553×1.90/0.0821×294

n=1.0507/24.1374

n=0.0435mol

3 0

3 years ago

Read 2 more answers

The lower the ph of a solution, the ______.

gtnhenbr [62]

B

a and c are unrelated
d: ph will increase

3 0

3 years ago

Read 2 more answers

What is required for storing chemicals

AnnZ [28]

A chemical storing thing

4 0

1 year ago

Read 2 more answers

Increasing the concentration of reactants generally increases the rate of a reaction because particles

Aleks [24]

This increases the rate of rxn because the particles, because according to the Collision Theory, the rate of rxn is proportional to number of effective collisions between the reactant molecules.

4 0

3 years ago