Chemistry & Elements
Knowledge · 107 words
Levelsall
Practise these 107 words
Learn with flashcardsno clock, no typing
The words
107 words
- activation energynoun · C1The push a reaction needs before it will start.
- alloy/ˈæ.lɔɪ/noun · B2+A metal made by melting two or more metals together.
- aluminium/ˌæl.(j)ʊˈmɪn.i.əm/noun · B1+A light silver metal that does not rust.
- anion/ˈænˌaɪ.ən/noun · C2An ion carrying a negative charge.
- apparatus/ˌæp.əˈɹeɪ.təs/noun · B2+The set of equipment an experiment needs.
- argon/ˈɑːɹɡɒn/noun · C1An unreactive gas used to fill light bulbs.
- atomic massnoun · B2How heavy one atom of an element is.
- atomic numbernoun · B2How many protons an element's atoms have.
- beaker/ˈbiːkə(ɹ)/noun · B2+A straight-sided glass cup with a lip for pouring.
- bond/bɒnd/noun · B2A strong lasting connection between people.
- bunsen burnernoun · B2The gas burner used for heating in a laboratory.
- burette/bjʊəˈɹɛt/noun · C2A tall tap-ended tube for adding liquid drop by drop.
- calcium/ˈkælsi.əm/noun · B1+The element that makes bones and shells hard.
- carbon/ˈkɑɹ.bən/noun · B2The element every living thing is built around.
- catalyst/ˈkæt.ɪ.lɪst/noun · B2+The substance that speeds a reaction without being used up — or the person who sparks change.
- cation/ˈkætˌaɪ.ən/noun · C2An ion carrying a positive charge.
- chlorine/ˈklɔɹin/noun · B1+A green gas used to kill germs in water.
- combustion/kəmˈbʌs.t͡ʃən/noun · B2+Burning: a fast reaction with oxygen giving out heat.
- compound/ˈkɒmpaʊnd/noun · B2A substance built from two or more elements joined together.
- concentration/ˌkɒn.sənˈtɹeɪ.ʃən/noun · B2How much of a substance is dissolved in a liquid.
- condensation/ˌkɒn.dɛnˈseɪ.ʃən/noun · B2+Gas turning back to liquid, like breath fogging a cold window.
- contaminant/kənˈtamɪnənt/noun · C1Something present that should not be there.
- copper/ˈkɒpə/noun · B1A soft reddish metal that carries current well.
- corrosion/kəˈɹəʊʒən/noun · B2+The slow chemical destruction of a metal surface.
- corrosive/kəˈɹəʊsɪv/adjective · B2+Able to eat away skin or metal.
- covalent/kəʊˈveɪ.lənt/adjective · C1Bonded by sharing electrons between atoms.
- crucible/ˈkɹuː.sɪ.bəl/noun · C1A small pot for melting things at high heat.
- decomposition/diːˌkɒmpəˈzɪʃən/noun · B2+A compound breaking down into simpler parts.
- dilution/daɪˈljuːʃən/noun · B2+Weakening a solution by adding more liquid.
- distillation/dɪstɪˈleɪʃən/noun · C2Separating liquids by boiling and cooling the vapour.
- emulsionnoun · C1Tiny drops of one liquid spread through another.
- endothermic/ˌɛndəʊˈθəːmɪk/adjective · C1Taking in heat as it reacts.
- enzyme/ˈɛn.zaɪm/noun · B2+One of the body's tiny worker molecules that speed every process.
- equation/ɪˈkweɪ.ʒən/noun · B2A written statement of what a reaction turns into what.
- equilibrium/ɛkwɪˈlɪbɹɪəm/noun · C2The state where opposing forces balance perfectly.
- evaporation/ɪˌvæpəˈɹeɪʃən/noun · B2+Liquid quietly turning to gas, the way puddles vanish in the sun.
- exothermicadjective · C1Giving out heat as it reacts.
- filtration/fɪlˈtɹeɪʃən/noun · B2+Separating solids from a liquid by passing it through a mesh.
- flammable/ˈflæməbl̩/adjective · B2+Catching fire easily.
- flask/ˈflɑːsk/noun · B1+A round-bottomed glass vessel with a narrow neck.
- formula/ˈfɔː.mjʊ.lə/noun · B1+The symbols showing what a substance is made of.
- fume cupboardnoun · C1The vented cabinet dangerous vapours are handled in.
- gold/ɡəʊld/noun · A2The shiny yellow color of first-place medals.
- half-life/ˈhæfˌlaɪf/noun · B2The time it takes half a radioactive sample to decay.
- hazard/ˈhæzəd/noun · C1Something with the power to cause harm.
- helium/ˈhiː.li.əm/noun · B1+A very light gas that will not burn.
- hydrocarbonnoun · B2+A compound of only hydrogen and carbon.
- hydrogen/ˈhaɪdɹəd͡ʒ(ə)n/noun · C1The lightest element, and the commonest in the universe.
- indicator/ˈɪn.dɪˌkeɪ.tə(ɹ)/noun · C1The blinking orange light that tells others which way you will turn.
- inert/ɪnˈɜːt/adjective · C1Not reacting with anything.
- inorganic/ɪnɔɹˈɡænɪk/adjective · B2+Not built around carbon.
- insoluble/ɪnˈsɒljʊbəl/adjective · B2+Unable to be dissolved.
- ion/ˈaɪən/noun · B2+An atom that has gained or lost an electron.
- ionic/aɪˈɒnɪk/adjective · C1Bonded by the attraction of opposite charges.
- iron/ˈaɪ.ən/noun · A2+A common strong metal that rusts.
- isotope/ˈaɪ.sə.təʊp/noun · C1A version of an element with a different number of neutrons.
- laboratory/ləˈbɒɹət(ə)ɹi/noun · B1The special room full of instruments where scientists test things.
- lead/ˈlɛd/noun · B1A heavy soft grey metal, poisonous to handle.
- litmus/ˈlɪtməs/noun · C1Paper that turns red in acid and blue in alkali.
- magnesium/ˌmæɡˈniːzi.əm/noun · B2+A light metal that burns with a brilliant white flame.
- mercury/ˈmɜːkjʊ.ɹi/noun · B2A metal that is liquid at room temperature.
- mixture/ˈmɪkstʃə/noun · B1+Substances stirred together without joining chemically.
- molaritynoun · C2How many molecules of a substance sit in a litre.
- molecule/ˈmɒl.ɪ.kjuːl/noun · B1+A tiny group of atoms joined together — water is a famous one.
- monomer/ˈmɒnəmə/noun · C2The single unit a polymer is built from.
- neon/ˈni.ɒn/noun · B2A gas that glows orange-red in a tube.
- neutralisationnoun · C1An acid and a base cancelling each other out.
- nitrogen/ˈnaɪ.tɹə.d͡ʒən/noun · B1+The gas that makes up most of the air.
- organic/ɔːˈɡænɪk/adjective · B2+To do with compounds built around carbon.
- oxidation/ɒksɪˈdeɪʃ(ə)n/noun · B2+The slow reaction with oxygen that rusts iron and browns apples.
- oxygen/ˈɒksɪd͡ʒən/noun · B1The gas in the air that every breath takes in and every fire needs.
- periodic table/ˌpɪɹiˈɒdɪk ˈteɪb(ə)l/noun · B2The chart that arranges every element by its structure.
- phnoun · B2The scale that says how acidic or alkaline something is.
- phosphorus/ˈfɒs.fə.ɹəs/noun · B2+An element that glows and catches fire easily.
- pipette/pɪˈpɛt/noun · B2+A thin tube that measures out tiny amounts of liquid.
- polymer/ˈpɒl.ɪ.mə/noun · B2+A very long molecule built from repeating units.
- potassium/pəˈtæsiəm/noun · B2+A soft metal the body needs, found in bananas.
- precipitate/pɹɪˈsɪpɪteɪt/noun · C1A solid that appears out of a solution.
- product/ˈpɹɒd.əkt/noun · B2A substance that comes out of a reaction.
- purity/ˈpjʊəɹɪti/noun · B2How free a substance is of anything else.
- radioactive/ˌɹeɪdiəʊˈaktɪv/adjective · B1+Giving off energy as its atoms break down.
- reactantnoun · C1A substance that goes into a reaction.
- reactive/ɹiːˈæktɪv/adjective · B2+Quick to take part in chemical reactions.
- reagent/ɹiˈeɪ.d͡ʒənt/noun · C1A substance used to bring a reaction about.
- reduction/ɹɪˈdʌk.ʃən/noun · B2+The opposite of oxidation, a gain of electrons.
- residue/ˈɹɛzɪdjuː/noun · C1What is left behind after a process.
- reversible/ɹəˈvɜː(ɹ)sɪbəl/adjective · B2+Able to run in either direction.
- safety gogglesnoun · B2Sealed eye protection worn in a laboratory.
- saturatedadjective · B2+Holding as much dissolved substance as it can.
- silicon/ˈsɪlɪkən/noun · B2+The element sand and computer chips are made from.
- silver/ˈsɪl.və/adjective · A2A pale shining grey, like polished metal.
- sodium/ˈsəʊ.di.əm/noun · B1+A soft reactive metal, half of common salt.
- soluble/ˈsɒljʊbəl/adjective · B2+Able to be dissolved in a liquid.
- solute/ˈsɒljuːt/noun · C1The substance that dissolves into a liquid.
- solvent/ˈsɒlvənt/noun · B2+The liquid that does the dissolving.
- sublimationnoun · C1A solid turning straight into gas.
- sulphurnoun · C2A yellow element that smells of rotten eggs when burnt.
- suspension/səˈspɛnʃən/noun · C1The springs that let wheels move without shaking the body.
- synthesis/ˈsɪnθəsɪs/noun · C1Combining separate ideas or findings into one whole.
- test tubenoun · B1A thin glass tube used to hold small samples.
- titration/taɪˈtɹeɪʃən/noun · C2Adding one solution drop by drop to measure another.
- toxic/ˈtɒk.sɪk/adjective · C1Deadly to swallow — or, these days, deadly to be around.
- uranium/ˌjuː.ˈɹeɪ.ni.əm/noun · B2+A heavy radioactive metal used as nuclear fuel.
- valence/ˈveɪl(ə)ns/noun · C1How many bonds an atom can form.
- volatile/ˈvɒl.əˌtaɪl/adjective · B2+Liable to flare up without warning.
- yield/jiːld/noun · B2How much product a reaction actually gives.
- zinc/ˈzɪŋk/noun · B2+A bluish metal used to coat steel against rust.