Chemical Reactions Flashcards
What is a reaction?
Two substances fusing together
How can heat affect reaction?
It can speed it up
Are acids and alkalis dangerous?
They can be corrosive
What is an acid?
Below seven on the PH scale
What is an alkali?
Above seven on the PH scale
What is a neutral?
Seven on the PH scale
What is a base?
A base can react with a acid to create a base
What does neutralisation create?
Salt and water
Can metal react with an acid
Yes and it creates Salt and hydrogen
What are two types of acid and alkali?
Concentrated and dilute
What is litmus paper?
A paper that turns red or blue depending on what is poured on it
How many levels are on the Universal indicator
14 levels 1-7 acid 7-14 alkali 7 neutral
What is a concentrated acid/alkali?
Lots of acid/alkali particles for water
What is a dilute acid/alkali?
Low amount of acid/alkali particles for water.
What does blue litmus paper turn into?
Pink litmus paper
What does Pink litmus paper turn into?
Blue litmus paper
What does hydrochloric acid produce?
hydrochloric acid produces metal chlorides
What does sulfuric acid produce?
sulfuric acid produces metal sulfates
What does nitric acid produce?
nitric acid produces metal nitrates
What is a PH scale
The pH scale is a measure of how acidic or alkaline something is.
What is a base?
A base is a compound that can react with an acid to make a neutral solution.
What are acids and alkalis?
Acids and alkalis are special solutions which are chemical opposites to each other.
