Chemisty

What is the formula for nitric acid?
HNO3
What is the formula for hydrogen gas?
H2
How can we prepare hydrogen gas in the the laboratory?
The action of dilute sulfuric acid on zinc granules
How much oxygen is there in air?
0.2
what is the formula for calcium carbonate?
CaCO3
What is the test for Carbon Dioxide?
Pass the gas through limewater and a white precipitate will appear.
Formula for calcium hydrogen carbonate
Ca(HCO3)2
How much percent of Carbon Dioxide is in the atmosphere?
Less than 1%
What is the formula for ethonoic acid?
CH3COOH
What is the product of hydrogen reacting with oxygen when ignited?
Water
What is oxygen needed for?
Respiration
What is the sound made when hydrogen gas is ignited with a lit splint?
A squeaky pop
What is the test for hydrogen?
A squeaky pop
What is the symbol for neon?
Ne
What is the formula for calcium carbonate?
CaCO3
What’s the final product of the re-dissolved calcium carbonate (white precipitate) called??
Calcium Hydrogen Carbonate Ca(HCO3)2
What happens to limewater when you combine it with Carbon Dioxide gas?
It turns milky
What is the symbol for Beryllium?
Be
What is the symbol for Potassium?
K
What is the symbol for ethanoic acid?
CH3COOH
How do you produce calcium hydrogen carbonate?
Calcium carbonate + carbon dioxide + water
How much oxygen is there in air?
1/5, or 20%
What element is F?
Fluorine
What is the symbol for hydrogen?
H
What was hydrogen used for?
Air balloons
What are the most common acids?
Hydrochloric, sulfuric, nitric, ethonoic and carbonic acid
What is the formula of calcium hydroxide?
Ca(OH)2
What is the formula of calcium hydrogencarbonate?
Ca(HCO3)2
How can carbon dioxide be prepared in the lab?
Reaction between calcium carbonate and dilute hydrocrolic acid.
What happens to limewater when carbon dioxide is bubbled through?
it turns milky
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