Learning Chemistry in English?
- TC

- 7 hours ago
- 4 min read
Core Chemistry Vocabulary
Basic concepts
Czech | English |
chemie | chemistry |
chemická látka | chemical substance |
prvek | element |
sloučenina | compound |
směs | mixture |
atom | atom |
molekula | molecule |
proton | proton |
neutron | neutron |
elektron | electron |
jádro | nucleus |
vazba | bond |
chemická reakce | chemical reaction |
rovnice | equation |
kyselina | acid |
zásada | base |
sůl | salt |
oxidace | oxidation |
redukce | reduction |
rozpouštědlo | solvent |
roztok | solution |
koncentrace | concentration |
Basic Lab Terms
Czech | English |
zkumavka | test tube |
kádinka | beaker |
baňka | flask |
pipeta | pipette |
váha | balance / scale |
hořák | burner |
destilace | distillation |
filtrace | filtration |
sraženina | precipitate |
odpařování | evaporation |
Periodic Table Terms
Important vocabulary
Czech | English |
periodická tabulka prvků | periodic table |
protonové číslo | atomic number |
atomová hmotnost | atomic mass |
skupina | group |
perioda | period |
kovy | metals |
nekovy | nonmetals |
polokovy | metalloids |
alkalické kovy | alkali metals |
halogeny | halogens |
vzácné plyny | noble gases |
Most Important Elements
Symbol | Czech | English |
H | vodík | hydrogen |
O | kyslík | oxygen |
N | dusík | nitrogen |
C | uhlík | carbon |
S | síra | sulfur |
P | fosfor | |
Cl | chlor | chlorine |
Na | sodík | sodium |
K | draslík | potassium |
Ca | vápník | calcium |
Fe | železo | iron |
Cu | měď | copper |
Zn | zinek | zinc |
Ag | stříbro | silver |
Au | zlato | gold |
Hg | rtuť | mercury |

Chemical Naming Patterns
This is one of the most useful things to learn.
Oxides
Czech | English |
oxid uhličitý | carbon dioxide |
oxid uhelnatý | carbon monoxide |
oxid sodný | sodium oxide |
Notice:
“oxid” = “oxide”
prefixes like mono-, di-, tri- are common in English
Acids
Czech | English |
kyselina chlorovodíková | hydrochloric acid |
kyselina sírová | sulfuric acid |
kyselina dusičná | nitric acid |
kyselina uhličitá | carbonic acid |
Salts
Czech | English |
chlorid sodný | sodium chloride |
síran měďnatý | copper sulfate |
dusičnan draselný | potassium nitrate |
Pattern:
English usually says:
metal + nonmetal ending
chloride, sulfate, nitrate, carbonate, phosphate…
Oxidation States
Czech chemistry naming uses oxidation states heavily.
Czech suffix | Ox. number | English style |
-ný | +1 | usually Roman numeral |
-natý | +2 | iron(II) |
-itý | +3 | iron(III) |
-ičitý | +4 | carbon(IV) / dioxide |
-ičný/-ečný | +5 | nitrogen(V) |
-ový | +6 | sulfur(VI) |
-istý | +7 | chlorine(VII) |
Example:
Czech | English |
oxid železnatý | iron(II) oxide |
oxid železitý | iron(III) oxide |
Useful English Chemistry Verbs
English Verb | Pronunciation | Czech |
react | [riˈækt] | reagovat |
analyze | [ˈænəlaɪz] | analyzovat |
characterize | [ˈkærəktəraɪz] | charakterizovat |
determine | [dɪˈtɜːrmɪn] | určit |
identify | [aɪˈdentɪfaɪ] | identifikovat |
quantify | [ˈkwɒntɪfaɪ] | kvantifikovat |
investigate | [ɪnˈvestɪɡeɪt] | zkoumat |
examine | [ɪɡˈzæmɪn] | zkoumat |
observe | [əbˈzɜːrv] | pozorovat |
monitor | [ˈmɒnɪtər] | sledovat |
compare | [kəmˈpeər] | porovnat |
evaluate | [ɪˈvæljueɪt] | vyhodnotit |
calculate | [ˈkælkjəleɪt] | vypočítat |
estimate | [ˈestɪmeɪt] | odhadnout |
confirm | [kənˈfɜːrm] | potvrdit |
establish | [ɪˈstæblɪʃ] | stanovit |
measure | [ˈmeʒər] | měřit |
weigh | [weɪ] | vážit |
heat | [hiːt] | zahřívat |
cool | [kuːl] | chladit |
stir | [stɜːr] | míchat |
shake | [ʃeɪk] | protřepat |
pour | [pɔːr] | nalít |
transfer | [trænsˈfɜːr] | přenést |
collect | [kəˈlekt] | shromáždit |
isolate | [ˈaɪsəleɪt] | izolovat |
purify | [ˈpjʊərɪfaɪ] | čistit |
dry | [draɪ] | vysušit |
wash | [wɒʃ] | promýt |
filter | [ˈfɪltər] | filtrovat |
centrifuge | [ˈsentrɪfjuːdʒ] | centrifugovat |
dissolve | [dɪˈzɒlv] | rozpustit |
dilute | [daɪˈluːt] | ředit |
concentrate | [ˈkɒnsəntreɪt] | koncentrovat |
precipitate | [prɪˈsɪpɪteɪt] | vysrážet |
suspend | [səˈspend] | suspendovat |
disperse | [dɪˈspɜːrs] | rozptýlit |
solvate | [ˈsɒlveɪt] | solvatovat |
hydrate | [ˈhaɪdreɪt] | hydratovat |
synthesize | [ˈsɪnθəsaɪz] | syntetizovat |
substitute | [ˈsʌbstɪtuːt] | nahradit |
eliminate | [ɪˈlɪmɪneɪt] | eliminovat |
hydrolyze | [haɪˈdrɒlaɪz] | hydrolyzovat |
hydrogenate | [haɪˈdrɒdʒəneɪt] | hydrogenovat |
oxidize | [ˈɒksɪdaɪz] | oxidovat |
reduce | [rɪˈdjuːs] | redukovat |
esterify | [ɪˈsterɪfaɪ] | esterifikovat |
cleave | [kliːv] | štěpit |
couple | [ˈkʌpəl] | spojit |
absorb | [əbˈzɔːrb] | absorbovat |
adsorb | [ədˈzɔːrb] | adsorbovat |
emit | [ɪˈmɪt] | emitovat |
diffuse | [dɪˈfjuːz] | difundovat |
evaporate | [ɪˈvæpəreɪt] | odpařovat se |
condense | [kənˈdens] | kondenzovat |
crystallize | [ˈkrɪstəlaɪz] | krystalizovat |
sublime | [səˈblaɪm] | sublimovat |
melt | [melt] | tát |
solidify | [səˈlɪdɪfaɪ] | ztuhnout |
indicate | [ˈɪndɪkeɪt] | naznačovat |
demonstrate | [ˈdemənstreɪt] | prokázat |
suggest | [səˈdʒest] | naznačovat |
reveal | [rɪˈviːl] | odhalit |
support | [səˈpɔːrt] | podporovat |
propose | [prəˈpəʊz] | navrhnout |
predict | [prɪˈdɪkt] | předpovědět |
infer | [ɪnˈfɜːr] | vyvodit |
obtain | [əbˈteɪn] | získat |
achieve | [əˈtʃiːv] | dosáhnout |
optimize | [ˈɒptɪmaɪz] | optimalizovat |
enhance | [ɪnˈhɑːns] | zvýšit |
inhibit | [ɪnˈhɪbɪt] | inhibovat |
promote | [prəˈməʊt] | podporovat |
decompose | [ˌdiːkəmˈpəʊz] | rozkládat se |
dissociate | [dɪˈsəʊsieɪt] | disociovat |
polymerize | [pəˈlɪməraɪz] | polymerovat |
convert | [kənˈvɜːrt] | přeměnit |
transform | [trænsˈfɔːrm] | přeměnit |
interact | [ˌɪntərˈækt] | vzájemně působit |
separate | [ˈsepəreɪt] | oddělit |
recover | [rɪˈkʌvər] | získat zpět |
prepare | [prɪˈpeər] | připravit |
titrate | [taɪˈtreɪt] | titrovat |
Example Sentences
These are worth memorizing as whole chunks:
The sample was analyzed by spectroscopy.
→ Vzorek byl analyzován spektroskopií.
The solution was diluted with distilled water.
→ Roztok byl zředěn destilovanou vodou.
The product was isolated and purified.
→ Produkt byl izolován a vyčištěn.
The compound was synthesized successfully.
→ Sloučenina byla úspěšně syntetizována.
The results indicate that...
→ Výsledky naznačují, že...
The data suggest that...
→ Data naznačují, že...
The reaction mixture was heated under reflux.
→ Reakční směs byla zahřívána pod zpětným chladičem.
A precipitate was observed.
→ Byla pozorována sraženina.
The concentration was determined by titration.
→ Koncentrace byla určena titrací.
The catalyst enhanced the reaction rate.
→ Katalyzátor zvýšil rychlost reakce.
Iron (Fe)
Czech | Formula | English |
oxid železnatý | FeO | iron(II) oxide |
oxid železitý | Fe₂O₃ | iron(III) oxide |
chlorid železnatý | FeCl₂ | iron(II) chloride |
chlorid železitý | FeCl₃ | iron(III) chloride |
Copper (Cu)
Czech | Formula | English |
oxid měďný | Cu₂O | copper(I) oxide |
oxid měďnatý | CuO | copper(II) oxide |
chlorid měďný | CuCl | copper(I) chloride |
chlorid měďnatý | CuCl₂ | copper(II) chloride |
Mercury (Hg)
Czech | Formula | English |
chlorid rtuťný | Hg₂Cl₂ | mercury(I) chloride |
chlorid rtuťnatý | HgCl₂ | mercury(II) chloride |
oxid rtuťný | Hg₂O | mercury(I) oxide |
oxid rtuťnatý | HgO | mercury(II) oxide |
Chromium (Cr)
Czech | Formula | English |
chlorid chromnatý | CrCl₂ | chromium(II) chloride |
chlorid chromitý | CrCl₃ | chromium(III) chloride |
oxid chromitý | Cr₂O₃ | chromium(III) oxide |
oxid chromový | CrO₃ | chromium(VI) oxide |
Manganese (Mn)
Czech | Formula | English |
oxid manganatý | MnO | manganese(II) oxide |
oxid manganičitý | MnO₂ | manganese(IV) oxide |
manganistan draselný | KMnO₄ | potassium permanganate |
Notice:
Czech: manganičitý → Mn(IV)
English: manganese(IV) oxide
Tin (Sn)
Czech | Formula | English |
chlorid cínatý | SnCl₂ | tin(II) chloride |
chlorid cíničitý | SnCl₄ | tin(IV) chloride |
oxid cínatý | SnO | tin(II) oxide |
oxid cíničitý | SnO₂ | tin(IV) oxide |
Lead (Pb)
Czech | Formula | English |
oxid olovnatý | PbO | lead(II) oxide |
oxid olovičitý | PbO₂ | lead(IV) oxide |
chlorid olovnatý | PbCl₂ | lead(II) chloride |
Gold (Au)
Czech | Formula | English |
chlorid zlatný | AuCl | gold(I) chloride |
chlorid zlatitý | AuCl₃ | gold(III) chloride |
oxid zlatitý | Au₂O₃ | gold(III) oxide |
Traditional vs Modern English
Sometimes you'll see older names:
Modern English | Older English |
iron(II) chloride | ferrous chloride |
iron(III) chloride | ferric chloride |
copper(I) oxide | cuprous oxide |
copper(II) oxide | cupric oxide |
mercury(I) chloride | mercurous chloride |
mercury(II) chloride | mercuric chloride |
Modern textbooks mostly use Roman numerals.
Practice Exercise
Try translating these:
Czech |
oxid železitý |
chlorid měďnatý |
oxid olovičitý |
chlorid chromitý |
oxid cínatý |
Answers:
iron(III) oxide
copper(II) chloride
lead(IV) oxide
chromium(III) chloride
tin(II) oxide
PRACTICE ALL THE WORDS WITH QUIZLET FLASHCARDS

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