SPS3 EOC Review Conservation of Matter Review 24-25

What is the fundamental principle of the Law of Conservation of Matter?

• Matter can be created and destroyed in chemical reactions

• Matter cannot be created or destroyed in chemical reactions

• Atoms are created in chemical reactions

• Total mass of reactants is less than total mass of products

Tags

NGSS.MS-PS1-5

Fill in the blank: Total mass of reactants = _________.

• Total mass of products

• Total volume of products

• Total number of atoms

• Total energy released

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NGSS.MS-PS1-5

Atoms are (a)   , not created or destroyed, during a chemical reaction.

• rearranged
• multiplied
• dissolved
• evaporated

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NGSS.MS-PS1-5

Match the following types of reactions with their descriptions.

• Exchange of ions between two compounds.

• Single Replacement Reaction

• Two or more reactants combine to form one product.

• Synthesis Reaction

• One element replaces another in a compound.

• Decomposition Reaction

• A single compound breaks down into two or more simpler substances.

• Double Replacement Reaction

Fill in the blank: The general equation for a synthesis reaction is ________.

• A + B -> AB

• AB -> A + B

• AB + CD -> AD + CB

• A + B -> A2B

Tags

NGSS.MS-PS1-5

Which type of reaction involves one compound breaking down into simpler substances?

• Synthesis Reaction

• Decomposition Reaction

• Single Replacement Reaction

• Double Replacement Reaction

Fill in the blank: The general equation for a decomposition reaction is ________.

• AB -> A + B

• A + B -> AB

• AB + CD -> AD + CB

• A + BC -> AC + B

In a single replacement reaction, what happens?

• Two compounds exchange partners

• One element replaces another in a compound

• Two or more reactants combine to form one product

• One compound breaks down into simpler substances

Fill in the blank: The general equation for a double replacement reaction is ________.

• AB + CD -> AD + CB

• AB + C -> AC + B

• A + B -> AB

• AB -> A + B

If 3.5 g of zinc react with excess hydrochloric acid, what should be the total mass of products?

• 3.5g (excluding the mass of excess HCl)

• 7.0g

• 1.75g

• 5.0g

Tags

NGSS.MS-PS1-5