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Chemistry & Water! Flashcards | StudBud
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Chemistry & Water!
Chemistry & Water!
8 terms
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StudBud Administration
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1 play
A Quiz quiz to review basics of Biology, Chemistry and the properties of Water to college students.
Flashcards
8 cards
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Practice quiz
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Host live
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Questions
8
Answers
1
Compared with
31
P, the radioactive isotope
32
P has
one more neutron
one more electron
a different atomic number
one more proton
2
Which of the following elements is NOT one of the 4 most common elements in living organisms?
oxygen
phosphorus
nitrogen
carbon
3
Ice can float in liquid water because the water molecules in ice are ________________________ .
a different molecule than liquid water molecules
packed very tightly together and therefore denser than water
held by the surface tension of the water
spread much further apart -- therefore less dense than water
4
Which of the following statements is TRUE about buffers?
They prevent large pH changes.
They donate H+ in aqueous solutions.
Statements a through c are true.
They accept H+ in aqueous solutions.
5
The element aluminum has 13 protons and mass number of 27. Which of the statements are TRUE?
Aluminum has an atomic number of 27 and 14 neutrons
Aluminum is an inert element
Aluminum has an atomic number of 13 and 14 neutrons
Aluminum has the same number of protons as neutrons
6
____________ of water molecules at the air-water interface gives water high surface tension.
adhesion
cohesion
evaporation
specific heat
7
Which of the following is a hydrophobic material?
wax
table salt
sugar
paper
8
The abundance of _______________ is the main reason the Earth is habitable.
plant life
water
rocks
nitrogen
