Chemistry Final. Mrs. O'Gorman. Semester 1. 2010.
Solid
Liquid
Gaseous
Mixed
Elemental
Digesting food
Melting ice
Boiling water
Chopping wood
None of the above
Pure substance
Mixture
Isotope
Atom
None of the above
An element
A compound
A heterogenous mixture
A homogenous mixture
An alloy
A phase change must occur
A phase change never occurs
The original material can never be regenerated
The products are different substances from the starting materials
Helium is a gas
Water has a high specific heat
Water boils at 100ÂȘC
Neon is very nonreactive
Potassium is a soft, shiny metal.
A calcium ion
A krypton ion
Potassium
A potassium atom
A krypton atom
An element
An atom
A compound
All the above
None of the above
6
4
13
8
None of the above
5
7
19
10
17
Three atoms of iron and three atoms of Sulfur
Six atoms of each element
Six atoms of oxygen
Two atoms of iron, three atoms of oxygen, one atom of sulfur
None of the above
92, 143, 235
92, 92, 143
92, 92, 235
74, 53, 235
74, 92, 235
Orbitals
Isotopes
Neutrons
Isomers
Nuclei
Ar, 16 neutrons
Ca, 14 neutrons
Ar, 18 neutrons
S, 18 neutrons
K, 20 neutrons
Wait!
Here's an interesting quiz for you.