O2 is a molecule.
oxygen gas
Question 1 options:
True
False
Question 2 (1 point)
Question 2 Saved
Look at the image below:
Which of the following is true?
Question 2 options:
All figures represent molecules.
Figure II and Figure IV are both compounds.
Figure I and Figure II are both compounds.
Figure I and Figure III are both molecules.
Question 3 (1 point)
Question 3 Unsaved
Which of the following lists includes only molecules?
Question 3 options:
209
a
209d
a
Question 4 (1 point)
Question 4 Unsaved
Look at the image below:
Which of the following statements is true?
Question 4 options:
The figure is a molecule and an element.
The figure is an atom and an element.
The figure is a molecule and a compound.
The figure is a compound, but not a molecule.
Question 5 (1 point)
Question 5 Unsaved
Water is formed when two hydrogen atoms bond to an oxygen atom.
The hydrogen and the oxygen in this example are different _______________.
Question 5 options:
mixtures
electrons
elements
compounds
Question 6 (1 point)
Question 6 Unsaved
Identify the compound. Which of these is a compound?
Question 6 options:
Mg
H2
CO2
O
Question 7 (1 point)
Question 7 Unsaved
Which statement is true about molecules and compounds?
Question 7 options:
Both are made of only one kind of atom.
Both are made of two or more atoms.
Both are made of only one element.
Both are made of two or more elements.
Question 8 (1 point)
Question 8 Unsaved
The element Oxygen, O, is an example of which of the following?
Question 8 options:
compound
molecule
atom
mixture