Why does matter appear to be conserved in chemical reactions but not in nuclear

Chemistry

1 answer:

11Alexandr11 [23.1K]3 years ago

8 0

The law of conservation of mass-energy applies only to nuclear reactions

Explanation:

In nuclear reaction the law of conservation of mass-energy applies. For chemical reactions, only the law of conservation of mass is known to be correct.

Nuclear reactions occurs in the nucleus of an atom. The mass of an atom is concentrated in the nucleus of atom.
The nucleus is made up of protons and neutrons.
During nuclear reaction, the nucleus of an atom changes considerably.
The change in the nucleus is expressed in form of a mass-energy relationship.
In nuclear reaction, mass is converted into energy using the equation E=mc².
Therefore, mass and energy is conserved in nuclear reactions.

Learn more:

Conservation of mass brainly.com/question/5896850

Nuclear reactions brainly.com/question/3433940

#learnwithBrainly

You might be interested in

Which of these is inorganic 1) leaf 2) earthworms 3) minerals 4) bacteria

Verdich [7]

Answer:

Explanation:

Bacteria I think

6 0

3 years ago

Read 2 more answers

Given:

strojnjashka [21]

Answer:

≈ 708

Explanation

Here we have equation as:

4 Al + 3 O₂ → 2 Al₂O₃

As we know:

No of moles = Mass/ Molar mass

Here, Mass is 375 g and Molar mass is 27 gms, so no. of moles of Al will be:

=375 g /27 g/mol

= 13.889 mol

About mole ratio, we can see that for 4 moles of Al , 2 moles of Al2O3 are formed, so for 13.889 moles of Al, 13.889 mol ÷ 2 =6.944 moles of Al₂O₃ will be formed.

As we know:

Mass= No of moles/Molar mass

Mass of Al₂O₃ = 6.944 mol × 102 g/mol

= 708.288 g

Hope it helps!

3 0

4 years ago

How many km are in 5.6mm? 5.6x103 5.6x10-6 5.6x10-3 5.6x106

il63 [147K]

Hey there :)

Question: How many km are in 5.6mm?

=>5.6x10^3