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Reactions and trends of group 1 and 2 metals are common questions asked at GCSE- Ca + 2 H₂O ==> Ca(OH)₂ + H₂This reaction will be exothermic and happen slowly in cold w...

Propenal can be distinguished by adding bromine water, as it will go from a orange/brown solution to a colourless solution due to electrophilic addition. Propanal can be distingiushed from propanone by us...

In complete combustion, there is a sufficient supply of oxygen which is able to react with the burning hydrocarbon allowing the reaction products H₂O and CO₂ to be formed.
In in...

The given equation is - NH₃ + HNO₃ --> NH₄NO₃
Equation to use - Moles = Mass/RFM
RFM of ammonium nitrate = 14 + 4 + 14 + (3x16) = 80
20kg = 2...

The key to answering any moles calculation question in chemistry is working out which equation you need to use. Generally, if moles are involved it will be moles = volume x concentration or moles = mass/R...