Here is the full list of all 52 Alchemy Classic achievements.
Create All Elements
create: Dark chocolate, Milk chocolate
invent: Sail
create: Origami
invent: Musical instruments
produce: Textile
create: Agricultural land
discover: Sound
construct: Cloud castle
create elements: 400
produce: Caoutchouc, Rubber
discover: Polluted Earth
discover: Minerals
invent: Internal combustion engine
construct: Automated factory
create elements: 300
construct: UFO
construct: Forge
create: Domestic animals
create elements: 200
create: Mammals
invent: Scuba
construct: Active robot
invent: Compass
construct: Potter's wheel
invent: Wheel
construct: Incomplete mechanism
create elements: 100
create: Dinosaurs, Flying Dinosaurs, Plesiosaurs
create: Reptiles
construct: Exhibit
construct: Incomplete building
create: Flowers, Shrub, Trees, Forest
create: Shrub
create: Flowers
create elements: 50
create: Amphibians
create: Bacteria
create elements: 25
invent: Sandglass
create elements: 10
create: Fog, Rain, Snow, Thunderstorm, Wind
complete: 100% Machines
construct: Steam turbine, Steam engine, Steam boat
create: Observatory, Astrolabe, Star chart
construct: Ornithopter, Sailplane, Airplane
construct: Nuclear power station, Atom battery, Atomic submarine
create: Wind Turbine, Water Turbine, Solar power plant
create: Alien, Robot, UFO, Freezer
create: Octopus, Dolphins, Whales
complete: 100% Chemical substances
create Borehole