Chemistry Final

Front

Which equation represents a neutralization reaction?

Back

H+(aq) + OH-(aq) → H2O(l)

Front

The scatter plots below show the solubility of metal chlorides and sulfates compared to the electronegativity of their component metal. Which of the following conclusions is best supported by this data?

Back

Metal sulfates are generally more soluble in water than metal chlorides.

Front

Why do alkali metals have relatively low melting points compared to other metals?

Back

Metallic bonds are weakest for metals with few electrons.

Front

Which postulate of Dalton’s atomic theory conflicted with Thomson’s discovery?

Back

2

Front

The correct formula for lead(IV) oxide is —

Back

PbO₂

Front

Which graph most accurately displays the relationship between the energy and frequency of a photon?

Back

Graph: Energy increases linearly with Frequency

Front

Which type of bond is formed when two atoms share a pair of electrons?

Back

Covalent

Front

Which is a nonpolar covalent substance? Options: CCl₄, NH₃, KCl, H₂O

Back

CCl₄

Front

The following reaction takes place in an aqueous solution.
Fe(NO₃)₃ + 3 NaOH → 3 NaNO₃ + Fe(OH)₃
This reaction proceeds to completion because the reverse reaction is prevented by —

Back

the insolubility of Fe(OH)₃

Front

As the elements in Period 2 of the Periodic Table are considered in succession from left to right, there is a decrease in atomic radius with increasing atomic number. This may best be explained by the fact that the —

Back

number of protons increases, and the number of shells of electrons remains the same.