Balancing Equations and the Law of Conservation of Matter

Presentation

•

Science

•

6th - 8th Grade

•

Hard

Joseph Anderson

FREE Resource

7 Slides • 11 Questions

Balancing Chemical Equations

The Law of Conservation of Matter

The Law of Conservation of Matter

You CANNOT create or destroy matter
In any given experiment, the amount of matter will still the same.
The amount of matter stays the same, even when matter changes form.
Also called the Law of Conservation of Mass

Multiple Choice

What is matter?

anything that has mass and takes up space

something important

only things that are heavy.

Multiple Choice

What is matter?

anything that has mass and takes up space

something important

only things that are heavy.

Multiple Choice

Which state of matter has particles that are the closest together?

solid

liquid

gas

Multiple Choice

What is the Law of Conservation of mass?

Mass is created in a chemical reaction

Mass is created in a physical change

New chemicals formed from a chemical reaction have a larger overall mass than the original reactants

Mass is never created or destroyed

Multiple Choice

An oreo cookie weighs 20 grams. It gets crushed into crumbs for a recipe. How much do its crumbs weigh?

15 grams

25 grams

20 grams

Multiple Choice

The Law of Conservation of matter states that the total amount of matter ______________ after it undergoes change.

disappears

stays the same

weighs less

explodes

How do we know in chemistry obeys the Law of conservation of Matter?

The Chemical equation will be balanced.

Multiple Choice

How many Hydrogen (H) atoms are in NH₃O5

Multiple Choice

Identify the reactant(s) and product(s) of the reaction.

All three are reactants and none are products.

Hydrogen and water are the reactants, and oxygen is the product.

Water and oxygen are the reactants, and hydrogen is the product.

Hydrogen and oxygen are the reactants, and water is the product.

Multiple Choice

The substances listed on the left side of a chemical equation are the

Products

Coefficients

Precipitates

Reactants

Multiple Choice

CaCO₃ represents a chemical

Symbol

Formula

Subscript

Reaction

Multiple Choice

CaCO₃ represents a chemical

Symbol

Formula

Subscript

Reaction

Any Questions?

Please email me or text my google voice.

Balancing Chemical Equations

The Law of Conservation of Matter

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