When unsure of the reliability of experiment results, you should....
Repeat the experiment
Word equation for nitric acid with calcium carbonate
calcium carbonate + nitric acid -> calcium nitrate + carbon dioxide + water
Why are constant variables important in an experiment?
To ensure results are fair
Describe a test for carbon dioxide gas
A lighted split extinguishes
Describe a test for hydrogen gas
A lighted splint produces a squeaky pop sound
How would you show that a solution is alkaline?
Universal indicator changes from green to blue/purple, litmus paper changes blue
A mysterious Metal X does not react with water or diluted hydrochloric acid. What could this metal be?
Gold
The hazard this sign shows is...
Corrosive
What material in your experiments this year poses this hazard?
Potassium, Sodium...
Another word for unreactive is...
inert
Name this scientific apparatus!
Beaker
Name this apparatus!
Round bottomed flask
Name this apparatus!
Condenser
Carbon-14 is written this way, what is the symbol for carbon 12?
12 | 6 C
An alkaline solution might give a reading of pH....?
Greater than 7pH
An isotope of magnesium has a nucleon number of 26 and a proton number of 12.How many neutrons in one atom of this isotope of magnesium?
14
