EOY 3 Flashcards
If zinc is more reactive than chlorine then finish this word equation.
zinc + hydrochloric acid -> _ +_
zinc chloride + hydrogen
Name the products in in the reaction of a metal with an acid
all reactions make a solution of a salt, and hydrogen gas
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.
Hydrogen and oxygen react explosively what is the word equation for this reaction?
hydrogen + oxygen -> water
(s) means solid
(g) means gas
What are these symbols called?
state symbols
finish this
magnesium + oxygen -> ?
magnesium oxide
How does zinc react with oxygen and waht does it produce? (bunsen burner)
white sparks are seen and zinc oxide forms.
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
Why does gold stay shiny?
Gold is un reactive and does not burn.
Name two metals that react vigorously with oxygen from the air
zinc, iron or magnesium
Calcium reacts with water and hydrogen bubbles are formed. finish the word equation
calcium + water -> ? + ?
calcium hyrdroxide +hydrogen
Group 1 metals react _ with water
vigorously
Out of sodium, potassium and lithium (Group 1 metals) which element reacts the most vigorously with water
potassium
When metals react with water they all make soluble hydroxides and ?
hydrogen gas
potassium + water -> ? + ?
potassium hydroxide + hydrogen
