How many valence electrons does Phosphorus have? - ANSWERS5
Two oxygen molecules will form what kind of bond/interaction? - ANSWERSnon-polar covalent
What makes a molecule polar? - ANSWERSunequal sharing of valence electrons
What property of water allows water molecules to stick together? ...
Biology 1305 Exam 1 Quigley (Baylor)
Questions &Answers
How many valence electrons does Phosphorus have? - ANSWERS5
Two oxygen molecules will form what kind of bond/interaction? - ANSWERSnon-polar
covalent
What makes a molecule polar? - ANSWERSunequal sharing of valence electrons
What property of water allows water molecules to stick together? - ANSWERScohesion
What property of water allows water molecules to stick to other substances? -
ANSWERSadhesion
One of water's unique properties is that its solid and liquid form have the same density. -
ANSWERSFalse
Water is known as the 'universal solvent.' - ANSWERSTrue
High density of ice is a property of water. - ANSWERSFalse
You place a paper towel on a puddle of water and notice that water quickly spreads
throughout the paper towel. Which property of water is this an example of? -
ANSWERSadhesion
High surface tension is a property of water. - ANSWERSTrue
High polarity is a property of water. - ANSWERSTrue
High specific heat is a property of water. - ANSWERSTrue
Does water have a higher density on the solid or liquid form? - ANSWERSLiquid
What makes a molecule non polar? - ANSWERSequal sharing of valence electrons
The atomic number assigned to an element is representative of the number of: -
ANSWERSProtons
When two carbon atoms are joined to one another by way of a double bond, the atoms
found attached to the carbons are... - ANSWERSin the same plane as the carbons
what is a compound? - ANSWERSwhen 2 differing atoms bond together
, Describe an ion - ANSWERSwhen an atom donates its electron to another atom
Low specific heat is a property of water. - ANSWERSfalse
High surface tension is a property of water. - ANSWERSTrue
Water is polar. - ANSWERSTrue
Water is cohesive. - ANSWERSTrue
Scenario that would cause a covalent bond to form. - ANSWERSTwo atoms share
electrons so they can fill their outer shells
What does the reactivity of an atom depend on? - ANSWERSpresence of unpaired
electrons in the outer valence shell of the atom
Fluorine has an atomic number of 9 and a mass number of 19. How many electrons are
needed to complete the valence shell of a fluorine atom? - ANSWERS1
You bought a cup of water from Starbucks on a hot, sunny day. As you are drinking
water from the straw, you are doing an example of... - ANSWERSadhesion
Water Striders are able to stand on water due to which property of water? -
ANSWERSsurface tension
What do atoms form when they share electron pairs? - ANSWERSMolecules
An element has eight protons, nine neutrons, and eight electrons. Its atomic number
and atomic mass, respectively, are __________. - ANSWERS8 & 17
Which of the following are compounds? - ANSWERSH20, CH4, but not O2
Atoms have no electric charge because they have ________. - ANSWERSan equal
number of protons and electrons
A(n) ________ has charge but negligible mass, whereas a(n) ________ has mass but
no charge. - ANSWERSelectron; neutron
Which property of the carbon atom gives it compatibility with a greater number of
different elements than any other type of atom? - ANSWERSCarbon has a valence of 4
Research suggests that side effects from Ritalin, the drug used to treat attention deficit
disorder, may be caused by contamination of enantiomers, or molecules that -
ANSWERSAre mirror images of one another
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