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WorksheetsSCIENCE 7
Total questions: 20
Worksheet time: 10mins
Pure substances are divided into two categories
elements and mixtures
elements and compounds
compounds and mixtures
compounds and pure substances
Pure substance that is the more pure is
elements
compounds
mixtures
atom
This chemical formula is called an
atom
element
compound
substance
Which of the following answer choices is NOT a compound?
NaCl
HMg
Si
PbSO
An element cannot be separated
with an atom
socially
chemically
physically
Which answer choice is an element?
X
Y
W
Z
The colors on this picture gives a clue this image is most likely a
element
compound
mixture
molecule
A substance with 1 capital letter or 1 capital letter and a lower case letter is a
atom
new substance
compound
element
Which of the following answer choices is a compound
N
Si3
H2SO4
Sb
A__________ has a least two or more capital letters.
element
compound
mixture
solution
Which of the following answer choices would NOT be listed on the periodic table?
Carbon (C)
Silver (Ag)
Salt (NaCl)
Lithium (Li)
Which of the following can be separated chemically?
compounds only
compounds and elements
elements and mixtures
solutions and mixtures
H2SO4 sulfuric acid is a
atom based
element
corrosive
compound
Magnesium has a chemical symbol of (Mg) is listed as a
element
compound
solution
atom
How many total elements are in the chemical formula of CHN3Au?
3
4
6
5
An element has _______ number of atoms.
one
two or more
four
three or more
Helium(He) + Helium(He) would be considered an
element with 1 atom of Helium
element with 2 atoms of Helium
compound with 2 atoms of Helium
compound with 1 atom of Helium
How many atoms of Oxygen are in this chemical formula?
one
four
two
three
The table listed above is named
solutions table
compound converter
periodic table of elements
Metals found in the Earth
This substance CANNOT be separated physically or chemically
atom
compound
solution
element
