WorksheetsChemistry Review
Total questions: 20
Worksheet time: 12mins
This symbol indicates a _______.
neutron
proton
electron
What 2 elements make up water?
Hydrogen and Carbon
Carbon and Oxygen
Hydrogen and Oxygen
Oxygen and Helium
How many molecules are in this formula?
1
2
3
6
What information does a subscript number tell us?
the number of atoms per element
the number of molecules per formula
What substance commonly exists in what 3 states of matter?
Oxygen
Carbon Dioxide
Rust
Water
An electron is located ...
in the nucleus.
outside the nucleus.
What is the atomic mass for this element?
6
12.0107
6.0107
18.0107
How many molecules are in the Reactant?
1
2
3
4
What information does the coefficient in an equation give us?
the number of atoms per element
the number of molecules per formula
What is the property of water is shown in the picture?
specific heat
universal solvent
capillary action
surface tension
The center of an atom is called
a/an __________.
atomic mass
nucleus
proton center
energy shell
How many neutrons are in an Calcium atom?
20
40.08
60
Which formula has 6 atoms of Carbon, 12 atoms of Hydrogen, and 6 atoms of Oxygen.
What property of water is shown in the picture?
surface tension
capillary action
universal solvent
specific heat
The atomic number of an element is determined by the _________ of ________ in the nucleus.
protons, neutrons
number, electrons
electrons, protons
number, protons
Which image shows a Bohr model for Carbon.
How many total atoms are in the product?
10
5
7
12
What property of water is shown in the picture?
surface tension
capillary action
universal solvent
specific heat
If the protons and electrons do not match, the atom is ____.
neutral
ion
Which equation shows the correct number of molecules?
