Chapter 4: Chemical Reactions

A substance that is produced during a chemical reactions

• reactant

• product

• compound

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

This is the process by which one or more substances are changed into one or more substances...

• chemical change

• chemical reaction

• both A & B

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NGSS.MS-PS1-2

NGSS.MS-PS1-5

This is a number placed in front of a chemical formula that shows how many molecules there are ...

• subscript

• coefficient

• exponent

These are always found to the left of the arrow in a chemical equation....

• reactants

• products

• coefficients

This is a shorthand way of showcasing a chemical reaction using symbols rather than words...

• chemical symbol

• chemical equation

• chemical formula

These are always found to the right of the arrow in a chemical equation...

• reactants

• coefficients

• products

This is found on the lower right of a symbol and will tell you the number of single atoms....

• coefficient

• exponent

• subscript

Which of the following statements is true?

• Atoms are neither created nor destroyed during a chemical reaction.

• Chemical reactions always require heat to begin.

• All chemical reactions produce heat.

Tags

NGSS.MS-PS1-5

What of the following statements is false?

• Energy is needed to break bonds during a chemical reaction.

• A catalyst is something that speeds up a chemical reaction.

• Products result from matter being created.

Tags

NGSS.MS-PS1-5

NGSS.MS-PS3-5

Baking a pizza in the oven.

• Endothermic Reaction

• Exothermic Reaction

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NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4