Law of Conservation of Mass

Front

Law of Conservation of Mass

Back

Mass is never created or destroyed

Front

In a reaction A + B ----> C, reactant A has 5g and product C has 9g. How many grams does reactant B have? Options: 4g, 5g, 9g, 14g

Back

4g

Front

If a reaction starts with a total 75g of reactants, it should produce?

Back

a total of 75g of products

Front

In the reaction AB → A + B, reactant AB has 12g and product B has 5g. How many grams should product A have?

Back

7g

Front

Bob puts 200 grams of ice into a pitcher with 900 grams of water. How many grams of water does Bob now have in the pitcher?

Back

1,100 g

Front

This type of system allows matter to flow freely in and out...

Back

Open System

Front

A boiling pot with a lid on it to keep in the energy is what type of system?

Back

Closed System

Front

Which of these is not a chemical reaction? Options: Burning of wood, Milk going bad, Mixing vinegar and baking soda, Melting of ice

Back

Melting of ice

Front

What types of systems are there?

Back

Open and Closed Systems

Front

What will weigh more when a chemical change is complete? The reactants before the chemical reaction, or the product after the reaction is complete?

Back

They both will weigh the same