Unit 4 Review

What is the picture displayed?

• atom

• element

• compound

Tags

NGSS.MS-PS1-1

What is the picture displayed?

• compound

• element

• molecule

Tags

NGSS.MS-PS1-1

Which two particles make up the nucleus of an atom?

• protons and electrons
• protons and neutrons
• molecules and compounds
• neutrons and electrons

What determines the type of element an atom makes?

• The size of the nucleus
• The number of protons
• How much an atom weighs
• The number of neutrons

Which of the following cannot be broken down into something simpler?

• A compound

• An element

• A mixture

How many elements are in C₆H₁₂O₆?

• 1

• 2

• 3

• 6

Tags

NGSS.MS-PS1-1

What do we call a chemical substance made up of 2 or more different types atoms bonded together?

• formula
• atom
• subscript
• compound

Tags

NGSS.MS-PS1-1

Humans absorb oxygen from the air they breathe in and exhale carbon dioxide gas, CO2. Carbon dioxide gas is

• an element made of carbon and oxygen atoms.

• a solution made of carbon and oxygen atoms.

• a compound of carbon and oxygen atoms.

• a mixture of carbon and oxygen atoms.

Tags

NGSS.MS-PS1-1

Hydrogen is a pure substance represented by the chemical symbol H. Which of the following best describes hydrogen?

• Hydrogen is an element made of two or more kinds of atoms.
• Hydrogen is a compound made of only one kind of atom.
• Hydrogen is a compound made of two or more kinds of atoms.
• Hydrogen is an element made of only one kind of atom.

Carbon (C) and hydrogen (H) are pure substances. Each is made of only one type of atom, but carbon atoms are different from hydrogen atoms. Carbon and hydrogen chemically combine to form methane (CH4).

• methane is an element and carbon and hydrogen are compounds.
• carbon, hydrogen, and methane are all elements.
• carbon, hydrogen, and methane are all compounds.
• carbon and hydrogen are elements and methane is a compound.

Tags

NGSS.MS-PS1-1