Question 1

Which of the following best describes the bonding in sodium chloride (NaCl)?

Accepted Answer

Ionic bonding, where sodium transfers an electron to chlorine, forming Na$$^+$$ and Cl$$^-$$ ions.

Question 2

What is the correct formula for the compound formed between aluminum and oxygen?

Accepted Answer

Al$$_2O$_3$$

Question 3

Which property is NOT characteristic of ionic compounds?

Accepted Answer

Malleability and ductility

Question 4

What is the correct name for FeCl$$_3$$?

Accepted Answer

Iron(III) chloride

Question 5

Which of the following is a polyatomic ion?

Accepted Answer

NO$$_3^-$$

Question 6

What is the formula for ammonium carbonate?

Accepted Answer

(NH$$_4$$)$$_2CO$_3$$

Question 7

Which of the following best explains why metals are good conductors of electricity?

Accepted Answer

Metals have delocalized electrons in an 'electron sea' that can move freely.

Question 8

Which of the following compounds contains both ionic and covalent bonds?

Accepted Answer

NH$$_4NO$_3$$

Question 9

What is the correct name for the compound CaSO$$_4$$?

Accepted Answer

Calcium sulfate

Question 10

Which of the following is the correct Lewis structure for water (H$$_2O$$)?

Accepted Answer

O with two single bonds to H and two lone pairs on O

Question 11

Which of the following molecules is nonpolar?

Accepted Answer

CO$$_2$$

Question 12

What is the correct formula for diphosphorus pentoxide?

Accepted Answer

P$$_2O$_5$$

Question 13

Which of the following best describes a sigma ($$\sigma) $$bond?

Accepted Answer

A bond formed by end-to-end overlap of orbitals

Question 14

Which of the following acids is triprotic?

Accepted Answer

H$$_3PO$_4$$

Question 15

A solution has a pH of 3. Which statement is true?

Accepted Answer

The solution is acidic and has a high [H$$_3O$^+$$].

Question 16

Which of the following best describes the geometry of methane (CH$$_4) $$according to VSEPR theory?

Accepted Answer

Tetrahedral

Question 17

What is the correct formula for the compound formed between magnesium and nitrate?

Accepted Answer

Mg(NO$$_3$$)$$_2$$

Question 18

Which of the following is a correct statement about the octet rule?

Accepted Answer

Atoms gain, lose, or share electrons to achieve a full set of eight valence electrons.

Question 19

Which of the following is the correct name for HNO$$_2$$?

Accepted Answer

Nitrous acid

Question 20

Which of the following best explains why water (H$$_2O) is a $$polar molecule?

Accepted Answer

It has polar bonds and a bent molecular geometry, making the molecule asymmetric.

GOB Chemistry Study Notes: Ionic and Covalent Compounds, Bonding, and Molecular Geometry

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