With 100% Correct Answer
Which element does NOT contain any neutrons?
A. iron
B. carbon
C. oxygen
D. hydrogen -ANSWER D. hydrogen
What is the symbol for the hydroxyl ion?
A. H-
B OH-
C. H2O
D. H3O -ANSWER B. OH-
The chemical formula of a compound describes the elements the compound contains
and the
A. pH of the compound
B. conduction of the compound
C. ratio of elements in the compound
D. ratio of neutrons to protons in each element -ANSWER C. ratio of
elements in the compound
When scientists measure a liquid's resistance to flow, they are measuring the liquid's
A. density
B. solubility
, C. viscosity
D. permeability -ANSWER C. viscosity
The tympanic membranes are also known as the
A. eye lids
B. sinuses
C. ear drums
D. vocal cords -ANSWER C. ear drums
The tympanic membranes are also known as the
A. eye lids
B. sinuses
C. ear drums
D. vocal cords -ANSWER C. ear drums
Which of the following as a non-renewable resource?
A. wood
B. water
C. copper
D. biomass -ANSWER C. copper
-a nonrenewable resource cannot be replaced by natural means
Which of the following as a renewable resource?
A. Coal
B. Water