Unit 2: Matter Lesson 3 and 4
pure substance
Mixture or pure substance? -the salt you sprinkle on your french fries
mixture
Mixture or pure substance? -the vegetable soup you had for lunch
compounds
Certain elements have special affinities for other elements. This causes them to bind together in special ways to form ____________.
heterogeneous
Homogeneous or Heterogeneous? -italian salad dressing
heterogeneous
Homogeneous or Heterogeneous? -mayonnaise
heterogeneous
Homogeneous or Heterogeneous? -sand at the beach
heterogeneous
Homogeneous or Heterogeneous? -soil
heterogeneous
Homogeneous or Heterogeneous? -the wood from which the desk you are studying on is made
Mixture because the iron and sulfur are only separated by a magnet.
If iron filings are places with excess powdered sulfur in a beaker the iron fillings are still attracted by a magnet and could be separated from the sulfur wit the magnet. Would this combination of iron and sulfur represent a mixture or pure substance?
pure substance
Mixture or pure substance? -a diamond
mixture
Mixture or pure substance? -a ham and cheese omelet
mixture
Mixture or pure substance? -a multivitamin tablet
mixture
Mixture or pure substance? -the blue liquid in your car's windshield reservoir
mixture
Mixture or pure substance? -the fertilizer your dad spreads on the front lawn in the spring
mixture
Mixture or pure substance? -the hydrogen peroxide you cleaned a cut finger with
the same
The composition of a given compound is always ___________________ no matter what the source of the compound.
The solution is the same throughout.
What does it mean to say a solutions is a homogeneous mixture?
A compound is something that is composed of two or more separate elements. Compounds are composed of two or more elements. It will always be made up of the same elements. Water- made up of hydrogen and oxygen.
What is a compound? What are compounds composed of? What is true about composition of a compound, no matter where we happen to find the compound?
He, F2, S8
Which of the following are considered elements (as supposed to compounds)? -He -F2 -HCI -S8
compounds
_____________ can be broken down into the components elements by chemical changes.
