Ch 8 Section 3

Question 1

ability of an element to react is referred to as the element’s

Answer 1

activity

Question 2

the more readily an element reacts with other substances, the

Answer 2

greater the activity is

Question 3

an activity series is a list of elements organized according to the

Answer 3

ease with which the elements undergo certain chemical reactions

Question 4

for metals, greater activity means a greater ease of

Answer 4

loss of electrons, to form positive ions

Question 5

for nonmetals, greater activity means a greater ease of

Answer 5

gain of electrons, to form negative ions

Question 6

the order in which the elements are listed is usually determined by

Answer 6

single-displacement reactions

Question 7

the most-active element, placed at the top in the series, can replace each of the

Answer 7

elements below it from a compound in a single-displacement reaction

Question 8

an element farther down can replace any element

Answer 8

below it but not any above it

Question 9

each halogen will react to replace any halogen listed

Answer 9

below it in the periodic table

Question 10

activity series are used to help predict whether

Answer 10

certain chemical reactions will occur

Question 11

activity series are based on

Answer 11

experiment

Question 12

the information that activity series contain is used as a general

Answer 12

guide for predicting reaction outcomes

Question 13

activity series reflects the fact that some metals react

Answer 13

vigorously with water and acids, replacing hydrogen to from new compounds

Question 14

other metals replace hydrogen in acids but react with water only when

Answer 14

the water is hot enough to become steam

Question 15

Li, Rb, K, Ba, Sr, Ca, Na

React with cold H2O and

Answer 15

acids, replacing hydrogen. React with oxygen, forming oxides

Question 16

Li, Rb, K, Ba, Sr, Ca, Na;

activity of halogen nonmetals

Answer 16

F2, Cl2, Br2, I2

Question 17

Mg, Al, Mn, Zn, Cr, Fe, Cd

react with steam (but not cold water) and

Answer 17

acids, replacing hydrogen. react with oxygen, forming oxides

Question 18

Co, Ni, Sn, Pb,

Do not react with

Answer 18

water. react with acids, replacing hydrogen. react with oxygen, forming oxides

Question 19

H2, Sb, Bi, Cu, Hg

react with

Answer 19

oxygen, forming oxides

Question 20

Ag, Pt, Au

fairly unreactive, forming

Answer 20

oxides only indirectly