WorksheetsScience With Salazar - Elements and Compounds
Total questions: 20
Worksheet time: 10mins
TRUE or FALSE
A compound is a pure substance.
True
False
Select the Correct answer
"Co" on the Periodic Table is an example of
Element
Compound
Formula
Chemical Symbol
He is the chemical ____ for helium.
symbol
formula
compound
How many elements are in the compound CaCO3?
1
2
3
4
Fill in the blank:
Elements and Compounds are _____ substances.
mixed
strange
pure
Fill in the blank:
Compounds are made of up ____ or more elements that are chemically combined.
one
two
zero
A pure substance that cannot be broken down chemically is called a (an) ______
Element
Compound
Mixture
Formula
True or false
"NaCl" can be called a chemical formula and a compound.
True
False
Is H3PO4 an example of an element or a compound?
Element
Compound
How are elements and compounds different?
Compounds are represented by chemical symbols of one letter, and elements are represented by symbols of two letters.
Elements are pure substances, and compounds are not.
A compound is represented by a chemical formula, and elements are represented by a chemical symbol.
.
Is H2O an example of an element or a compound?
Element
Compound
Is Au an example of an element or a compound?
Element
Compound
True or False
Elements are pure substances that are made of one kind of atom.
True
False
The _____ represents a the name of an element and is written as a capital letter or a capital letter followed by a lowercase letter.
Compound
Chemical Formula
Chemical Symbol
Element
How many elements are in the chemical formula (or compound) C6H12O6?
3
1
24
None
How many elements are in SiO2?
1
2
3
Which of the following is NOT true about Elements?
Elements are represented by a chemical formula
Elements are organized on the Periodic Table
Elements are made of only one type of atom
Elements are Represented by a chemical
How are Elements and Compounds alike?
They are both pure substances
They are both found on the Periodic Table
They are the building blocks of life
They are made up of one kind of atom
How many elements are in the compound CO?
1
2
3
True or False
An element CAN be broken down chemically into simpler substances.
True
False
