Question 1

Match the words to their definitions.

Question 2

Which of the following is FALSE about ionic compounds?

Accepted Answer

They have low melting points.

Answer

They form a crystal lattice.

Answer

They are made of metals and nonmetals.

Answer

They conduct electricity.

Question 3

Which equation shows an example of a process that would involve lattice energy?

Accepted Answer

$Ca^{2+} + O^{2-}\Rightarrow CaO$

Answer

$I + e^- \Rightarrow I^-$

Answer

$C +O_2 \Rightarrow CO_2$

Answer

$K^+  \Rightarrow K^+ + e^-$

Question 4

Which compound is ionic?

Accepted Answer

$MgO$

Answer

$CO_2$

Answer

$H_2O$

Answer

$NO_3$

Question 5

Which of the following pairs are isoelectronic?

Accepted Answer

$K^+$ and $S^{2-}$

Answer

$Cl^-$ and $Ne$

Answer

$Ca^{2+}$ and $Na^+$

Answer

$H^+$ and $Li^+$

Question 6

What ion will P form?

Accepted Answer

$P^{3-}$

Answer

$P^{3+}$

Answer

$P^-$

Answer

$P^+$

Question 7

Name this compound: $CuCl_2$

Accepted Answer

copper(II) chloride

Answer

copper(II) chlorine

Answer

copper(I) chloride

Answer

copper chloride

Question 8

Write the formula  for sodium phosphate.

Accepted Answer

$Na_3PO_4$

Answer

$Na_3P$

Answer

$NaP$

Answer

$NaPO_4$

Question 9

Which main group is NOT reactive?

Accepted Answer

noble gases

Answer

alkali metals

Answer

halogens

Answer

alkaline earth metals

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