Vocabulary
Characteristics of matter that are observable without changing the matter.
Physical properties
What class of matter is silver?
Pure substance - element
Name the elements and count the atoms for each element in this compound:
NaHCO3
Na, sodium, 1
H, hydrogen, 1
C, carbon, 1
O, oxygen, 3
Identify whether the following is a chemical or physical property:
density
Physical (would also be a characteristic property)
A non-uniform (not the same throughout) mixture of two or more substances. Can be separated by hand
Heterogeneous mixture
Anything that has both mass and volume.
Matter
What class of matter is trail mix?
Heterogeneous mixture
Name the elements and count the number of atoms for each element in the following compound:
2KNO3
K, potassium, 2
N, nitrogen, 2
O, oxygen, 6
Identify whether the following is a chemical or physical property:
Salt dissolving in water.
Physical
The smallest particle of an element that has the properties of that element.
Atom
The simplest type of pure substance made of only one type of atom.
Element
What class of matter is air?
Homogenous mixture
Name the elements and count the number of atoms for each element in the following compound:
Cu(NO3)2
Cu, copper, 1
N, nitrogen, 2
O, Oxygen, 6
Identify whether the following is a chemical or physical property:
Rusting of a metal bicycle
Chemical
A uniform mixture of two or more different substances. Can NOT be separated by hand.
Homogeneous mixture
a pure substance that is made of two or more elements that are chemically bonded together; the elements are present in a specific ratio
compound
What class of matter is water?
Compound
Name the elements and count the number of atoms for each element in the following compound:
3Cr(OCl)2
Cr, Chromium, 3
O, Oxygen, 6
Cl, Chlorine, 6
Identify whether the following is a chemical or physical property:
Milk turning sour
Chemical
Can only be observed during a chemical reaction
Chemical property
A homogeneous mixture of two or more metals that are not chemically combined.
Alloy
What class of matter is bronze?
Homogeneous mixture - alloy
Name the elements and count the number of atoms for each element in the following compound:
3Ag(SO4)2
Ag, silver, 3
S, sulfur, 6
O, oxygen, 24
Ice cream melting.
Physical
A trait of a substance that does not depend on how much of the substance is present.
Characteristic property