Modified: Classifying Matter Review Flashcards

Front

What defines the mixture of lettuce, tomatoes, and cucumbers in a salad?

Back

It can be broken down into its basic substances through physical means.

Front

What is the smallest particle of an element that still has the same chemical properties of that element?

Back

atom

Front

Nora is in a pharmacy lab where she crushes several chemicals, combines them as powders, and presses the powders together to make a solid tablet. The tablet is a/an _______________.

Back

mixture

Front

What kind of substance is inside a container labeled with the chemical symbol H?

Back

Hydrogen is an element made of only one kind of atom.

Front

Nora is learning about different substances in her kitchen. She finds a container of pure carbon (C) and a bottle of pure hydrogen (H) gas. Each is made of only one type of atom; carbon atoms are different from hydrogen atoms. Nora then reads that carbon and hydrogen can chemically combine to form methane (CH4), which is used as a fuel. Based on this information, classify carbon, hydrogen, and methane.

Back

carbon and hydrogen are elements and methane is a compound.

Front

Which of the following substances is a mixture? hydrogen sulfide gas (H₂S), solid bronze (an alloy of copper and tin), solid iron metal (Fe)

Back

solid bronze (an alloy of copper and tin)

Front

Which dish is an example of a heterogeneous mixture?

Back

vegetable soup

Front

As which type of matter is formaldehyde, made up of three different types of atoms chemically combined in a fixed ratio, correctly classified?

Back

Compound

Front

Which of these two is an element? O, NH_⁴

Back

O

Front

What is true for the new compound formed when Olivia mixes vinegar and baking soda?

Back

It was created by chemical reaction.