Law of Conservation of Mass - Post Lab

Front

The number in front of a compound or element is a

Back

Coefficient

Front

The Coefficient (3) in the Chemical Formula, 3H₂O, tells you how many _____________ there are.

Back

Molecules of Water

Front

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

Back

a total of 75g of products

Front

24 g of magnesium reacts with 38 g of fluorine to produce _____ g magnesium fluoride

Back

62

Front

32 g of Oxygen completely reacts with 8 g of Hydrogen to produce _____ g Water

Back

40

Front

What does the Law of Conservation of Mass state?

Back

Mass can not be created or destroyed

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

Front

What types of systems are there?

Back

Open and Closed Systems

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