Chemistry Semester 1 Review & Exam

Which of the following is one of the Expectations of Behavior?

• Be Respectful

• Be Quiet

• Don't Play on Your Phone

• Be a Leader

A __________ tells what is going to happen, while a ___________ tells you how or why it happened.

• theory, law

• law, theory

• hypothesis, theory

• law, hypothesis

Tags

NGSS.HS-PS2-4

The state of matter with relatively high heat, indefinite volume and indefinite shape is ___________.

• solid

• liquid

• gas

• plasma

Tags

NGSS.HS-PS3-4

Which diagram best shows the particles in a liquid?

• a.

• b.

• c.

• d.

Tags

NGSS.HS-PS1-3

The state matter is in tells you something about how much _____________ the particles in the matter have.

• power

• potential energy

• density

• kinetic energy

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-2

A student is given a sample of matter and asked to determine whether it is an element, compound, or mixture. The student discovers that he cannot separate the components physically, but he is able to separate it using chemical reactions into three different pure substances. The sample must be ______________________.

• an element

• a compound

• a solution

• a mixture

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The word alloy goes in which position on the Types of Mixtures flowchart?

• A.

• B.

• C.

• D.

• E.

What word goes in the space marked E on the Types of Mixtures flowchart?

• solution

• colloid

• suspension

• solute

A change that produces matter with a different composition is called a _____.

• transformational change

• physical change

• radical change

• chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following statements is true?

• Compounds are not pure substances because they are composed of two or more elements.

• Compounds are pure substances because they contain only one element

• Compounds are pure substances because each molecule has the same fixed composition.

• Compounds are not pure substances because they can be decomposed.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-1