Chemical Reactions Flashcards
What colour is an alkaline on the universal indicator?
Purple
What colour is an acid on the universal indicator?
Red
What happens with magnesium oxide + fire
A bright light
What equals a metal + a acid?
= salt + hydrogen
What is metal oxide + acid?
= a salt + water (H2O)
What is metal hydroxide + acid?
= a salt + water
What is metal carbonate + acid?
= a salt + water + carbon dioxide
Magnesium oxide + hydrochloric?
= magnesium chloride + water
What are the 3 acids
Hydrochloric
Sulphuric
Nitric
When hydrochloric reacts what happens?
= chloride
When sulphuric reacts what happens?
= sulphate
When Nitric reacts what happens?
= nitrate
Metal + oxygen=
Metal oxide
What is heavier than air?
Carbon dioxide
What is the test for oxygen?
Relight a glowing splint
What does Corrosive mean?
It can burn through things (a very strong acid)
What makes up hydrocarbons?
They contain the elements of hydrogen and carbon
What percentage of air is oxygen?
20%
On the universal indicator what colour is neutral?
Green number 7
What is an irritant?
Make your skin itchy or cause a rash breakout
What is harmful?
Harmfully means it can make you ill
What is toxic?
It can kill you
Name 3 acids which are found in foods?
Ethanoic acid
Carbonic acid
Citric acid
Name 3 acids which are found in house hold cleaning products
Phosphoric acid
Hydrochloric acid
Oxalic acid
