module 10 (periodic table 2)

Question 1

what is the equation for an alkali metal and water?

Answer 1

alkali metal + water -> metal hydroxide + hydrogen

Question 2

define reactivity series

Answer 2

list of metals in order of how readily they react with other substances (top is most vigorous)

Question 3

how do you test for hydrogen gas?

Answer 3

put a burning splint in a test tube of gas, a squeaky pop = hydrogen

Question 4

what are metal oxides?

Answer 4

basic

Question 5

what is the reactivity pattern in group one and two?

Answer 5

the reactivity increases as you go down the group

Question 6

which is more reactive, group 1 or 2?

Answer 6

group 1

Question 7

what is the equation for a metal salt?

Answer 7

metal + acid -> salt + hydrogen

Question 8

define a displacement reaction

Answer 8

when a more reactive metal takes the place of a less reactive metal in a compound

Question 9

what is a thermite reaction used for?

Answer 9

to repair railway tracks

Question 10

what is the reactivity pattern in group 7?

Answer 10

the reactivity increases as it goes up

Question 11

define diatomic

Answer 11

consisting of two atoms

Question 12

define a covalent bond

Answer 12

when a pair of electrons is shared by two atoms