ECM Quiz Review

Which best describes water

• compound

• element

• heterogeneous Mixture

• Homogeneous Mixture

Tags

NGSS.MS-PS1-1

Which substance is composed of only one type of atom?

• water

• gold

• salt

• sugar

Tags

NGSS.MS-PS1-1

Calcium carbonate CaCo3 is considered a compound because it is made up of two or more

• molecules

• elements

• gases

• solids

Tags

NGSS.MS-PS1-1

this drawing represents a

• element

• mixture

• compound

• mixture of compounds

Tags

NGSS.MS-PS1-1

A student passes a magnet over 10 grams of a powder. Four grams of the powder stick to the magnet, while 6 grams do not. Which of these identifies the substance?

• element

• compound

• mixture

• solution

Sodium (Na) and chlorine (Cl) combine to form sodium chloride (NaCl), which is commonly known as

• soap

• vinegar

• table salt

• baking soda

Which is the best example of a pure substance?

• peanuts

• milk

• gold

• air

Since sodium chloride is classified as a compound, a sample of it contains

• atoms that are gases, liquids, and solids.

• more than one kind of atom

• matter that cannot be reduced to atoms

• a solution of atoms and molecules.

Tags

NGSS.MS-PS1-1

In order to form water, two hydrogen atoms and one oxygen atom must be

• mixed

• divided

• bonded

• dissolved

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which is a homogeneous mixture

• pizza

• soda

• concrete

• trail mix