Saturday, November 16, 2019

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)

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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