Chemistry basics

basic 1

100

a molecule or other entity that can donate a proton or accept an electron pair in reacti

acid

200

the basic unit of a chemical element.

atom

300

 the rapid phase transition from liquid to gas or vapor; the reverse of boiling is condensation.

boiling 

400

a measure of the capacity of a substance to absorb light of a specified wavelength.

absorbance 

500

 a detailed examination of anything complex in order to understand its nature or to determine its essential features

analysis

basic 2

100

those organic compounds which are characterized by the presence of one, two or more hydroxide groups (−OH that are attached to the carbon atom in an alkyd group or hydrocarbon chain.

alcohol

200

a compound or substance that has been purified or prepared, especially artificially.

chemical

300

a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.

molecules

400

a substance made by mixing other substances together.

mixture

500

an action performed or a feeling experienced in response to a situation or event.

reactions

basic 3

100

something that binds or restrains

bond

200

a white crystalline substance that gives seawater its characteristic taste and is used for seasoning or preserving food.

salt

300

the strength and vitality required for sustained physical or mental activity.

energy

400

 having carbon–carbon double or triple bonds and therefore not containing the greatest possible number of hydrogen atoms for the number of carbons.

unsaturated 

500

each of two or more different physical forms in which an element can exist. Graphite, charcoal, and diamond are all allotropes of carbon.

allotrope

basic 4

100

the length of a portioned time 

period 

200

a law stating that the elements, when listed in order of their atomic numbers (originally, atomic weights), fall into recurring groups, so that elements with similar properties occur at regular intervals.

periodic law

300

a law stating that the elements, when listed in order of their atomic numbers (originally, atomic weights), fall into recurring groups, so that elements with similar properties occur at regular intervals.

periodic law

400

the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.

potential energy 

500

a negatively charged subatomic particle that can be either bound to an atom or free.

electron 

basic 5

100

a fluid (such as air) that has neither independent shape nor volume but tends to expand indefinitely

gas

200

the process of causing something to absorb water.

hydration

300

the processes by which chemicals interact to form new chemicals with different compositions

chemical equations 

400

holding as much water or moisture as can be absorbed; thoroughly soaked.

saturated

500

conversion of a substance from the liquid or solid phase into the gaseous (vapour) phase.

vaporization