Question

What evidence supports a conservation law? (4 points)

a
6 CO2 → C6H12O6 + 6 O2

b
6 CO2 + 6 H2O + light → C6H12O6 + 6 O2

c
6 H2O + light → C6H12O6 + 6 O2

d
6 CO2 → 3 C6H12O6 + 3 O2

Answer 1

Answer:

The correct option is B.

Explanation:

The evidence that supports the conservation law is that Carbon dioxide becomes glucose and oxygen during photosynthesis. The law of conservation of mass states that in a chemical reaction, mass is neither created nor destroyed.

What is the law of conservation of mass?

This is what the law of conservation of matter says

"Matter in an isolated system can neither be created nor destroyed, but it can be transformed from one form to another."

There are believed to be several assumptions from classical mechanics that define the conservation of mass. Later, with the help of quantum mechanics and special relativity, the law of conservation of mass was modified, that energy and mass are one conserved quantity.

Examples of the law of conservation of mass

Combustion Process: Combustion of wood is conservation of matter because combustion of wood involves oxygen, carbon dioxide, water vapor and ash.

Chemical Reactions: To make one molecule of $H_2O$According to the law of conservation of mass, for a low-energy thermodynamic process, the mass of the reactants must equal the mass of the products. (water) with a molecular weight of 10, hydrogen with a molecular weight of 2 is added to oxygen with a molecular weight of 8, thus maintaining mass.

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Answer 2

6 CO2 + 6 H2O + light → C6H12O6 + 6 O2

supports a conservation law.

Explanation:

• The fundamental justification for the Law of conservation of angular momentum's existence is still unknown.
• The law of conservation of angular momentum states that an object's angular momentum won't change in the absence of any external strain.
• The constant rate of Earth's rotation throughout billions of years is an example of angular momentum.
• This concept is put into effect by devices like gyroscopes, which use the rule of conservation of angular momentum to guide, control, or measure rotational movement in a variety of systems.
• An angular momentum change can be expressed as final angular momentum minus initial angular momentum.

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