________ is a pure substance composed of only one type of atom.
elements
True or False: Compounds are formed by physically mixing two or more substances.
False
T/F: Compounds contain atoms from at least two different elements
True
Which one represents a heterogeneous mixture?
D
True or false: Mixtures are not chemically combined.
True
T/F: The composition of a substance is always the same
True
_________ is a pure substance formed by two or more different types of elements.
compound
What is another name of homogeneous mixture?
solution
If I have less salt but more water in my cup, what type of solution is that?
Diluted solution
True or False: A cup filled with water and pebbles is a homogeneous mixture.
False
What are the two types of substances?
elements and compounds
What are the two types of mixtures?
Heterogeneous and homogeneous