Q.1
What is the name of NF3?
  • mononitrogen trifluoride
  • nitrogen trifluoride
  • nitrogen flouride
  • nitrogen fluorine
Q.2
What is the name of K2O?
  • dipotassium monoxide
  • dipotassium oxygen
  • Potassium oxide
  • Potassium oxygen
Q.3
Is sugar (C12H22Oan element or a compound?
  • Element
  • Compound
Q.4
What is the formula for Sodium Bromide?
  • NaBr
  • NaBr2
  • Na2Br
  • Na3Br
Q.5
What is the formula for Calcium Chlorate? (refer to your polyatomic ions sheet)
  • CaClO3
  • Ca(ClO3)2
  • Ca(ClO3)3
  • Ca(ClO3)4
Q.6
Atoms combine to form _______.
  • electrons
  • molecules
  • nuclei
  • neutrons
Q.7
Bonds between atoms in a molecule form as a result of the sharing of?
  • formulas
  • electrons
  • atoms
  • chemicals
Q.8
How many elements are in HHe
  • 3
  • 4
  • 2
  • 5
Q.9
Water (H2O) freezing is an example of:
  • A chemical change
  • A physical change
Q.10
A compound consists of two or more elements bound together.
  • True
  • False
Q.11
A chemical change always results in the formation of a:
  • explosion
  • big mess
  • new substance
  • new state of matter
Q.12
Which of the substances below is a compound?
  • ink
  • air
  • oxygen
  • salt
Q.13
Air is a compound.
  • True
  • False
Q.14
Composition of compounds can be separated.
  • True
  • False
Q.15
Compounds are made up of two or more atoms physically combined.
  • True
  • False
Q.16
The properties of the elements that make up a compound are usually very similar to the compound itself.
  • True
  • False
Q.17
Is Iron (Fe) an element or a compound?
  • Element
  • Compound
Q.18
How many elements are represented in the compound?Na2CO3
  • 1
  • 2
  • 3
  • 4
Q.19
Which of the following is not a compound?
  • HCl
  • Cl
  • NaCl
  • CO2
Q.20
Can compounds be found in the periodic table?
  • Yes
  • No
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