A
What is a substance that is composed of more than one type of atom chemically bonded together.
Compound
30 points
What are substances made of geometric structures containing many trillions of atoms all bonded together.
Non molecular compounds
50 points
How does combustion occur?
Occurs whenever substances reacts rapidly with oxygen.
50 points
What is found in two forms, graphite an diamond?
20 points
True or False.
Density is the amount of matter that makes up an object.
False
30 points
True or False.
Element is a substance that is composed of only one type of atom.
True
10 points
What is the study of what substances are made of and how one substance can be changed into another.
Chemistry
10 points
What is a process in which atoms of elements or compounds are rearranged to form new substances.
Chemical reaction
20 points
What is the formula of water?
H2O.
30 points
True or False.
Ionic compound is composed of charged atoms or groups of atoms.
True
15 points
What is a measure of the pull of gravity on an object.
Weight
20 points
What is anything that takes up space and has mass.
Matter
20 points
True or False. Atoms are tiny particle from which all substances are composed of the smallest particle of an element.
True
20 points
What is a noble gas used in balloons?
Helium
20 points
Say 1 example of mixture.
Answers vary
20 points
What is a wax like solid with two forms, white and red?
Phosphorus
10 points.
What is the formula of sodium chloride?
NaCl
40 points
Answer vary
20 points
What is the noble gas used in signs and lasers?
Neon
15 points
What is a large group of elements that are typically shiny, with a silvery color, and are good conductors of electricity.
Metals
20 points
What is a tiny group of two or more atoms that are bonded tightly together?
Molecule
30 points
What is the hardest of all known substances?
Diamond
20 points
What is a colorless and odorless gas used in chemical factories and as rocket fuel?
nitrogen
30 points
Say 1 example of compound.
Answers vary
20 points
What is a metal that is the densest element.
Osmium.
20 points