WorksheetsLaw of Conservation of Matter
Total questions: 7
Worksheet time: 8mins
What is the Law of Conservation of matter?
Matter is created in a chemical reaction
Matter is created in a physical change
New chemicals formed from a chemical reaction have a larger overall matter than the original reactants
Matter is never created or destroyed
If the mass of a chemical reaction's product is 15 grams, what would the mass of the reactants be?
20 g
15 g
10 g
3 g
Why does this picture demonstrate the Law of Conservation of Matter?
the number of atoms of each element are the same on both sides
they start out separate and end up combined
the same elements are used
it doesn't demonstrate the Law of Conservation of Matter
If a chemical reaction occurs in a closed system (no way for any part of the reaction to escape), how does the product mass compare to the reactant mass?
the mass would decrease
the mass would increase
the mass would stay the same
it depends on the type of reaction
If a chemical reaction occurs in an open system (not contained), what might happen to the measurable mass of the products when compared to the reactants?
the measurable mass might decrease because any gas produced can escape (the actual mass would stay the same)
the mass would increase because mass was created
the measurable mass would stay the same because nothing would be able to leave the system.
it depends on the type of reaction
Which picture below would correctly demonstrate the Law of Conservation of Matter if this picture is the reactants?
