yr8 chemistry autumn Flashcards
what is the symbol for glucose
C6 H12 O6
how do you test for carbon dioxide?
put in limewater and if it turns cloudy then it’s CO2
what does recessive mean?
the less dominate gene e.g b
what is the formula for word equations
A + BC ——> AC + B
what is a displacement reaction
when an element “moves” another element out of place
how can we test for hydrogen
pops a lighted split
is Iron Oxide acidic or alkali?
alkali
metal oxide = alkali
what is the word equation for respiration
glucose + oxygen ——> carbon dioxide + water
true or false:
a base can neutralise an acid
true
what is the most reactive metal
potassium (K)
is sulphur oxide acidic or alkali?
acidic
non-metal = acidic
true or false:
if an element is soluble then it’s an acid
false alkali
what does soluble mean?
a substance that dissolves in a liquid
finish this word equation:
calcium carbonate + hydrochloric acid ——>
finish this word equation:
calcium carbonate + hydrochloric acid ——> calcium chloride + carbon dioxide + water
finish this word equation:
Magnesium + Oxygen ——>
Magnesium + Oxygen ——> Magnesium Oxide
finish this word equation:
magnesium + sulphuric acid ——>
magnesium + sulphuric acid ——> magnesium sulphate + hydrogen
how do we test for oxygen?
we put a glowing splint into a test tube and if it lights on fire the 100% of what’s in the tube is oxygen
where does respiration happen in the cell?
mitrocomnia
finish this word equation:
hydrochloric acid + iron chloride ——>
finish this word equation:
hydrochloric acid + iron chloride ——> iron chloride + water
what the process when an acid reacts with an alkali
neutralisation
finish this word equation:
copper + water ——>
copper + water ——> copper hydroxide + hydrogen
what is the least reactive metal
gold
what happens when you inhale?
rib cage expands and ribs move up and diaphragm moves down
