lesson 16 group 1 part 2

Question 1

lithium reacts how with water

Answer 1

fast

Question 2

as you add universal indicator to water it changes to green and lithium makes this turn what colour

Answer 2

purple

Question 3

if we add lithium to the water (universally indicated) what will occur

Answer 3

effervescence(otherwise known as fizzing) which is telling us that a gas has been produced

Question 4

once the universal indicator turns purple when reacting to lithium, what does this mean

Answer 4

that it has turned into an alkali

Question 5

sodium reacting with water (universally indicated) also turns purple but it reacts

Answer 5

reacts more rapidly than lithium

Question 6

potassium reacting with water (universally indicated) also turns purple but it reacts

Answer 6

reacts more rapidly than sodium

Question 7

lithium + water=

Answer 7

lithium hydroxide + hydrogen

Question 8

lithium hydroxide is what

Answer 8

an alkali

Question 9

why did the universal indicator turn purple with lithium

Answer 9

as lithium hydroxide is an alkali

(meaning alkali turns the universal indicator purple)

Question 10

hydrogen is gas which is the reason why we saw what

Answer 10

effervescence

Question 11

moving down group 1, the outer electron is less attracted to the what

Answer 11

the nucleus and easier to lose

Question 12

why when moving down group 1, the outer electron is less attracted to the nucleus and easier to lose

Answer 12

because there is a greater distance between the positive nucleus and the negative outer electron