5.0 grams of iron (Fe) would have a larger increase in temperature with the addition of 1000 joules of energy than 5.0 grams of gold (Au). You may want to refer to the table of specific heat capacities in chapter 8 of your text to answer this question.
False
If a molecule contains 2 or more polar bonds, than the entire molecule is never nonpolar.
False
Soap and grime are attracted to each other by induced dipole-induced dipole interactions.
True
If a molecule contains only 1 polar bond, than the entire molecule is polar.
True
Reduction can be defined as the
gain of electrons
In an electrochemical battery (galvanic cell)
the anode is where oxidation takes place
Under what conditions does an oxidizing agent donate electrons?
when a reducing agent is present
When two half-reactions are added together in an oxidation-reduction reaction,
there should be no electrons shown in the overall equation.
The chemical reaction that takes place during electrolysis is
forced to take place by the addition of energy
A carbon atom has been oxidized when it
gains oxygen atoms
How many carbons are in butane?
4
A bromine atom has how many valence electrons?
7
For nonpolar molecules, the most significant type of intermolecular forces are
induced dipole-induced dipole
Isotopes are atoms that have
same number of protons, different number of neutrons
When a radioactive nucleus undergoes beta decay, the number of protons
increases by one
The atomic number of an atom is equal to
the number of protons in the nucleus
What would happen to the mass of an iron bar when it rusts? (assume the rust does not fall off the iron bar)
the mass would increase because it is gaining oxygen atoms
When a sodium atom becomes a stable ion, its charge is
+1
Electromagnetic radiation (light) that has a very small wavelength would have
a high frequency
Was the fat isolated from potato chips in lab soluble in water?
no
Alkenes are a type of hydrocarbon derivative.
False
An oxiding agent is oxidized during a chemical reaction.
False
A measurement of 43.22 mL has more uncertainty than a measurement of 43.2 mL.
False
Carbon atoms are most stable when they make four bonds.
True
A measurement of 43.22 mL has more uncertainty than a measurement of 43.2 mL.
True
Silicon is an example of an element that would be classified as a metaloid.
True
Voltaic cells will work spontaneously.
True
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