4.1 Matter and Mixtures Intro

Match the following

• Changes by breaking bonds & forming new

• Physical change

• Occupies space and contains mass

• Chemical change

• Changes without changing composition

• Matter

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is an element?

• A mixture of compounds

• A substance that cannot be decomposed into simpler substances by chemical or physical means

• A visibly distinguishable mixture

• A chemical process

Tags

NGSS.MS-PS1-1

Which type of mixture has visibly indistinguishable parts?

• Heterogeneous Mixture

• Homogeneous Mixture

• Pure Substance

• Compound

Which of the following is not a characteristic of a homogeneous mixture?

• Visibly indistinguishable parts

• Constant composition

• Can be separated by physical means

• Visibly distinguishable parts

Match the substance with it's catagory.

• Compound

• Italian salad dressing

• Heterogeneous mixture

• Oxygen

• Pure substance

• Water

• Homogeneous mixture

• Salt water

In the example 2Na(s) + Cl₂(g) → 2NaCl(s), what are the reactants?

• NaCl

• Na and Cl₂

• NaCl and Cl₂

• Na and NaCl

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What type of reaction involves compounds combining into a more complex substance?

• Double Replacement

• Decomposition

• Combustion

• Synthesis

Tags

NGSS.MS-PS1-1

What type of reaction involves a substance combining with oxygen to release energy?

• Decomposition

• Combustion

• Single Replacement

• Double Replacement

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the definition of a decomposition reaction?

• A compound combines with another compound to form a new substance.

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

• Two elements combine to form a compound.

• A compound changes its state without changing its composition.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-PS1-1

What should you look for in a single replacement reaction?

• Compound + element reactants, new compound + element products.

• Element + element reactants, compound products.

• Compound + compound reactants, element products.

• Element + compound reactants, compound products.

Tags

NGSS.MS-PS1-2