Finals Quizizz

what is a pure substance?

• The smallest unit of an element that has the chemical identity of hat substance

• A substance that cannot be broken down into a simpler substance by chemical means

• A material that cannot be physically seperated into its parts. Some can be broken down chamically and all have specific properties.

What is an element?

• A substance that cannot be broken down into a simpler substance by chemical means

• A material that cannot be physically seperated into its parts

each element has the same set of chemical and physical properties. (true/false)

What is the smallest unit of an element that has the chemical identity of that element?

• cell

• atom

• molecule

How is the periodic table arranged?

• Atomic number

• alphabetical order

• atomic mass

How many elements are in the periodic table?

• 218

• 112

• 118

• 78

Which way does atomic number increase?

• Left-right

• Right-left

What are two ways chemical bonds are shown in models?

• lines

• arrows

• sticks

• circles

What type of molecule may contain thousands of atoms?

• simple

• complex

Tags

NGSS.MS-PS1-1

Wht do the properties of a substance depend on?

• types of atoms

• number of protons in the atoms

Tags

NGSS.MS-PS1-1