Check all the statements that are correct. conservation of mass means:
question 1 options:

we can start a reaction with different types of elements than we have at the end of the reaction.

we must start and end with the same amounts of matter

matter cannot be created

matter can be destroyed in a chemical reaction

Conservation of mass means:

We must start and end with the same amount of matter Matter cannot be created

In a closed / isolated system, the total mass of the substance before the reaction will be equal to the total mass of the reaction product.

Further explanation

In general, the reaction takes place in the open air. If the reaction results in the form of gas as in combustion, the mass of the reaction results will be smaller than the original mass. Or if the reaction binds to a larger than the environment then the reaction results will produce a greater mass than the original mass.

For example, in a paper combustion reaction the mass of combustion ash is smaller than the mass of paper that is burned because there is a gas released into the air

Conservation of mass applies to a closed system, where the masses before and after the reaction are the same

Let see the answer choices :

We can start a reaction with different types of elements than we have at the end of the reaction.

This statement is true, the elements in the reaction will also be found in the product, but in the form of other compounds

Matter cannot be created

Matter cannot be created nor destroyed by chemical reactions

This statement is true, because matter only changes or is rearranged

Matter can be destroyed in a chemical reaction

Incorrect statement

Learn more

Complete and balance the molecular equation

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The law of conservation of matter

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Keywords : matter,  Conservation of mass, chemical reaction,closed system

The correct answer is:   bri hope this answer was ! : )

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