Over a million students use our free study notes to help them with their homework
Sodium chloride contains ionic bonds between sodium and chloride ions.Sodium has one electron in its outer shell, whereas chlorine has 7. Atoms are happiest when they have a full outer shell of electrons....
Primary alcohol is the only alcohol which can fully oxidise as it first oxidises to an aldehyde and this can be further oxidised to a carboxylic acid. This is not possible with 20 alcohols as t...
number of moles = mass / molar massTherefore, n=20.82g/6.34gmol-1=3moles
Enthalpy of Neutralisation: the energy change a system experiences when one mole of water is formed from the neutralisation of an acid with an alkali under standard conditions.Standard conditions: 298K, 1...
Using a copy of the periodic table, look up the Mass and Atomic numbers of Silicon. Mass number = 28; Atomic number = 14. The Atomic number is equivalent to the number of Protons in an atom, so there are ...
←
196
197
198
199
200
→
Internet Safety
Payment Security
Cyber
Essentials
