AAM Q11&12 Flashcards
What is a substance?
matter that has the same composition and properties throughtout
What are the two types of substances?
element and compound
What is an element?
a substance made out of one kind of atom
What is a compound?
2 or more elements chemicallly combine in a definite ratio that form a new substance ex: H2O SiO2 CO2 CaCO3 Ci2H22O11
What are some examples of elements? (4)
- gold
- uranium
- silver
- iron
What are some examples of compounds?
- H2O
- SiO2
- CO2
- CaCO3
What is a mixture?
matter made up of 2 or more substances that are NOT chemicaly combined (not always a 50, 50 split)
What is a homogonous mixture?
a mixture where substances are evenly spread out
What is a hetrogenosu mixture?
a mixture where substances are NOT even;y spread out (can show layers)
What are some examples of a homogenous mixture? (4)
- saltwater
- coke
- hot tea
- tomato soup
What are some examples of a hetrogenous mixture? (4)
- Vegtable soup
- science binder
- human
- dresser