Deck 2: Basic Chemistry

Question 1

Which compound is a waste product of cellular metabolism?

A) oxygen
B) carbon dioxide
C) catalyst
D) ATP

Answer 1

carbon dioxide

Question 2

Which of the following is an anion?

A) NaCl
B) KCl
C) H2_SO₄
D) HCO-₃

Answer 2

HCO-₃

Question 3

Which of the following is an anion?

A) sodium ion
B) potassium ion
C) chloride ion
D) calcium ion

Answer 3

chloride ion

Question 4

Which compound is the universal solvent?

A) carbon dioxide
B) oxygen
C) ATP
D) water

Question 5

Which process refers to the dissociation of NaCl into Na⁺ and Cl-?

A) radioactivity
B) ionization
C) covalent bonding
D) hydrogen bonding

Question 6

Which of the following increases the speed of a chemical reaction,but is itself not used up in the chemical reaction?

A) an isotope
B) a cation
C) a catalyst
D) ATP

Question 7

Which of the following is located in the orbits surrounding the nucleus?

A) isotopes
B) protons
C) electrons
D) neutrons

Question 8

Which of the following is true of an anion?

A) An anion always ionizes to form electrolytes.
B) An anion always has an atomic weight of 15.
C) An anion carries a negative charge.
D) Hydrogen ion is an anion.

Question 9

The sharing of electrons is referred to as

A) covalent bonding.
B) ionic bonding.
C) radioactive decay.
D) isotope formation.

Question 10

What is the energy-transferring molecule?

A) H⁺
B) ATP
C) Ca²⁺
D) NaCl

Question 11

Which of the following is a measurement of hydrogen ion concentration [H⁺]?

A) atomic number
B) atomic weight
C) isotope
D) pH

Question 12

Which of the following is descriptive of the chemical reaction in the previous question?

A) cation + anion ⟶ electrolyte
B) electrolyte ⟶ cation + anion
C) electrolyte + anion ⟶ cation
D) neutralization of an acid by a base

Question 13

Which of the following represents bicarbonate,an anion that is important in acid-base regulation?

A) HCl
B) CaCO₃
C) HCO-₃
D) KCl

Question 14

This ion has 8 protons in the nucleus and 9 electrons in its orbits.It is therefore a(n)

A) cation.
B) electrolyte.
C) acid.
D) anion.

Question 15

[H⁺] refers to

A) an isotope of hydrogen.
B) heavy hydrogen.
C) hydrogen bonding.
D) hydrogen ion concentration.

Question 16

NaCl,table salt,is called a(n)

A) anion.
B) electrolyte.
C) cation.
D) ion.

Question 17

The word ferrous refers to

A) an acid solution.
B) an alkaline solution.
C) any cation.
D) iron.

Question 18

Which element must be present for a substance to be classified as organic?

A) iodine
B) iron
C) carbon
D) calcium

Question 19

A cation is a(n)

A) positively charged ion.
B) electrolyte.
C) isotope.
D) ion that has an atomic weight of 2.

Question 20

Which of the following acts as a catalyst?

A) an acid
B) an enzyme
C) a buffer
D) ATP

Question 21

The heart pushes blood into the blood vessels as chemical energy is converted to this form of energy.

A) thermal
B) radiant
C) mechanical
D) nuclear

Question 22

In which of the following is the number of hydrogen ions greater?

A) an alkaline solution
B) a basic solution
C) blood
D) urine

Question 23

An atom has 1 proton,0 neutrons,and 1 electron.What will convert this atom to a cation?

A) add 1 neutron
B) add 1 proton
C) lose 1 electron
D) add 1 proton,2 neutrons,and eliminate 1 electron

Question 24

Which of the following best describes a solution in which alcohol is the solvent?

A) tincture
B) alkaline
C) acid
D) aqueous

Question 25

Which of the following is described by: one atom of oxygen bonds covalently with two atoms of hydrogen?

A) carbon dioxide
B) a tincture
C) water
D) neutralization of an acid with a base

Question 26

Zinc,selenium,cobalt,and iodine are all

A) trace elements.
B) compounds.
C) radioactive.
D) isotopes of hydrogen.

Question 27

Which of the following carries no net electrical charge?

A) an anion
B) a cation
C) a polar molecule
D) an ion

Question 28

Iron is a(n)

A) anion.
B) electrolyte.
C) acid.
D) cation.

Question 29

What happens when HCl is added to a solution with a pH of 7.45?

A) The pH will be greater than 7.45.
B) The solution will become more alkaline.
C) The [H⁺] of the solution will increase.
D) The pH will be greater than 8.0.

Question 30

Which of the following illustrates antacid activity?

A) NaCl --> Na⁺ + Cl⁻
B) HCl --> H⁺ + Cl⁻
C) Mg(OH)₂ + HCl --> MgCl₂ + H₂O
D) KCl ---> K⁺ + Cl⁻

Question 31

An atom has 2 protons,2 neutrons,and 2 electrons;it has an atomic

A) number of 6.
B) weight of 2.
C) weight of 6.
D) number of 4.

Question 32

Na⁺

A) is an an ion.
B) is an electrolyte.
C) bonds ionically with Ca²⁺.
D) is a cation.

Question 33

Blood has a pH range of 7.35 to 7.45 and therefore

A) is acidic.
B) is 3-4 times more viscid (thicker)than water.
C) has a pH that is similar to urine and stomach contents.
D) is alkaline.

Question 34

A combination of sugar granules and iron filings is best described as a

A) mixture.
B) colloidal suspension.
C) tincture.
D) isotope.

Question 35

An atom has 1 proton,0 neutrons,and 1 electron;its isotope has

A) 2 electrons and 0 neutrons.
B) 2 protons and 2 neutrons.
C) 1 proton and 1 neutron.
D) 2 protons and 0 neutrons.

Question 36

Which of the following best describes a solution in which water is the solvent?

A) colloidal suspension
B) aqueous solution
C) tincture
D) isotope

Question 37

Which of the following can neutralize H⁺?

A) Ca²⁺
B) Na⁺
C) OH^-
D) H2O

Question 38

Which pH is considered neutral?

A) 7.35
B) 7.45
C) 7.00
D) 14.0

Question 39

Which of the following is incorrect?

A) mixtures:suspension,colloidal suspension,solution
B) ions:Na⁺,Cl⁻ ,Ca²⁺,K⁺
C) electrolytes:NaCl,KCl,CaCl₂,HCO-₃
D) cations:Na⁺,Ca2+,K⁺,H⁺

Question 40

A solution that has a pH of 6.8

A) has a neutral pH.
B) is alkaline.
C) is basic.
D) is acidic.