C3.1 Acids and metals Flashcards
What is the equation of reacting an acid with a metal?
Acid + Metal -> Salt + hydrogen
How do you test for hydrogen?
1) Collect the gas by holding an empty test tube above the reaction tube.
2) Light a splint
3) Hold the splint in the test tube that collected the gas.
4) Listen. If the splint goes out with a squeaky pop, the gas is hydrogen.
Why does the squeaky pop happen?
The squeaky pop happens because hydrogen and oxygen react explosively. The product is water.
Do all metals react with dilute acids?
No. Some metals do not react with dilute acids. Nothing happens if you add gold, silver or copper to dilute hydrochloric acid.
In order of reactivity, list these metals in order from most reactive to least reactive: zinc, magnesium, lead, gold, iron, copper
Most reactive to least reactive:
magnesium zinc iron lead copper gold
What is a metal?
Metals are on the left of the stepped line in the periodic table. Most elements are metals. They are good conductors of energy and electricity.
