Vocabulary Flashcards
What is an alkali
It’s solution has a PH number more than 7
Where are all the alkali metals
Elements that are in group one on the periodic table
What is a Alkane
A saturated hydrocarbon with the general formula CnH2n+2
What is a Alkene
Unsaturated hydrocarbon which contains a carbon- carbon double bond
The general formula is CnH2n
What is an Alloy
A mixture of metals ( and sometimes non metals)
What is aluminium
A low density, corrosion - resistant metal used in many alloys
Define Anhydrous
Describes a substance that does not contain water
What is an Aqueous solution
The mixture made by adding a soluble substance to water
What is the atmosphere
A thin layer of gases that surround the plant earth
What is an atom
The smallest part of an element
What is the atomic number
The number of protons in an atoms - the number of protons in a element equal the number of electrons
Activation energy
The minimum energy needed to start a reaction
