chemistry
Cards (100)
- Acida substance with a pH of less than 7 that forms H+ ions in water
- activation energythe minimum amount of energy that reactant particles must have when they collide in order to react
- alkalia substance with a pH greater than 7 that forms OH- ions in solution
- alkali metalan element in group 1 of the periodic table
- alkanea saturated hydrocarbon with the general formula CnH2n+2
- alkenea type of hydrocarbon that is more reactive than alkanes
- alloya metal that is a mixture of two or more metals, or a mixture involving metals and non-metals
- aniona particle with a negative charge, formed when one or more electrons are gained
- anomalous resulta result that doesn't fit with the rest of the data
- aqueouswhen a substance is in solution with water
- atmospherethe layer of air that surrounds a planet
- atoma neutral particle made up of protons and neutrons in the nucleus, with electrons surrounding the nucleus
- atomic numberthe number of protons in the nucleus of an atom. proton number
- avogadro constantthe number of particles in one mole of a substance, 6.02 x 10^23
- basea substance that reacts with acids in neutralisation reactions
- boilingthe transition of a substance from a liquid to a gas
- boiling pointthe temperature at which a substance changes from a liquid to a gas or gas to liquid
- bond energythe amount of energy required to break a bond or the amount of energy released when a bond forms
- calibratemeasure something with a known quantity and set the instrument being used to that quantity
- carbon footprinta measure of the amounts of greenhouse gases released by a product, service or event
- catalysta substance that can speed up a reaction without being changed or used up
- crackingthe process of breaking down long-chain hydrocarbons into shorter ones using a catalyst, often aluminium oxide
- categoric datadata that comes in distinct categories
- cationa particle with a positive charge formed when one or more electrons are lost
- chemical bondthe attraction of two atoms for each other, caused by the sharing or transfer of electrons
- chromatogramthe pattern of spots formed as a result of separating a mixture using chromatography
- chromatographyan analytical method used to separate the substances in a mixture based on how the components interact with a mobile phase and a stationary phase
- climate changea change in the Earth's climate
- collision theorythe theory that in order for a reaction to occur particles must collide with sufficient energy
- combustionan exothermic reaction between a fuel and oxygen
- compounda substance made up of atoms of at least two different elements, chemically joined together
- concentrationthe amount of a substance in a certain volume of solution
- condensingthe transition of a substance from a gas to a liquid
- continuous datanumerical data that can have any value within a range
- control groupa group that matches the one being studied, but where the independent variable isn't altered.
- control variablea variable in an experiment that is kept the same
- conversion factora number which you must multiply or divide a unit by to convert it to a different unit
- correlationa relationship between two variables
- covalent bonda chemical bond formed when atoms share a pair of electrons
- covalent substancea substance where the atoms are held together by covalent bonds