EOY 3 Flashcards Preview

Chemistry 8YA > EOY 3 > Flashcards

Flashcards in EOY 3 Deck (18)
Loading flashcards...
1

If zinc is more reactive than chlorine then finish this word equation.

zinc + hydrochloric acid -> _ +_

zinc chloride + hydrogen

2

Name the products in in the reaction of a metal with an acid

all reactions make a solution of a salt, and hydrogen gas

3

Describe how you test for hydrogen gas (makes bubbles)

1) collect gas using empty test tube
2) Light a splint
3) hold splint in test tube
4) if splint goes out with a squeaky pop then gas is hydrogen.

4

Hydrogen and oxygen react explosively what is the word equation for this reaction?

hydrogen + oxygen -> water

5

(s) means solid
(g) means gas
What are these symbols called?

state symbols

6

finish this
magnesium + oxygen -> ?

magnesium oxide

7

How does zinc react with oxygen and waht does it produce? (bunsen burner)

white sparks are seen and zinc oxide forms.

8

How does copper react with oxygen and what does it produce? (bunsen burner)

It does not burn, instead it forms black surface. It produces copper oxide

9

Why does gold stay shiny?

Gold is un reactive and does not burn.

10

Name two metals that react vigorously with oxygen from the air

zinc, iron or magnesium

11

Calcium reacts with water and hydrogen bubbles are formed. finish the word equation
calcium + water -> ? + ?

calcium hyrdroxide +hydrogen

12

Group 1 metals react _ with water

vigorously

13

Out of sodium, potassium and lithium (Group 1 metals) which element reacts the most vigorously with water

potassium

14

When metals react with water they all make soluble hydroxides and ?

hydrogen gas

15

potassium + water -> ? + ?

potassium hydroxide + hydrogen

16

(aq) is a state symbol for what

a substance dissolved in water

17

State the definition of an ore

An ore is a rock that you can extract a metal from

18

Describe the two stages of extracting a metal from it's ore

1) seperate iron oxide from the other compunds it's mixed w
2) use chemical reactions to seperate iron from iron oxide.