Law Of Conservation of Mass

Front

Mass of water and baking soda solution when 0.25 grams of baking soda is added to 5 grams of water and stirred.

Back

5.25 grams

Front

Matter can not be created nor destroyed: it can only be

Back

Transformed, changed

Front

If reaction starts with 20g of reactants, it should produce...

Back

a total of 20g of products

Front

Which of the models of a chemical reaction best represents the Law of Conservation of Mass? Options: A, B, C, D

Back

A

Front

Which of the models of a chemical reaction best represents the Law of Conservation of Mass? Options: A, B, C, D

Back

A

Front

Which model of a chemical reaction best represents the Law of Conservation of Mass?

Back

Model A

Front

True or False: The mass of the reactants in a chemical equation must equal the mass of the products.

Back

TRUE

Front

A student heated a 10 gram sample of a chemical in an open container. A chemical reaction occurred, and the mass of the sample was measured again. The mass of the sample was found to be less than before the reaction. What best explains the decrease in mass?

Back

Some of the particles escaped as a gas formed.

Front

A system where only energy can be exchanged but not matter

Back

Close system

Front

A system which can exchange both matter and energy with the surrounding.

Back

Open system