Summary Chemistry GCSE Wards and Their Meaning

Chemistry GCSE Wards and Their Meaning Acid + alkali= - ANSWER-salt + water Anode - is the non-metal ion a halide ion? - ANSWER-yes - halogen is produced no - oxygen is produced Are - ANSWER-relative atomic mass At the end of a reaction... - ANSWER-bonds form At the start of a reaction... - ANSWER-bonds break Atom radius - ANSWER-1 x 10^-9m Atomic number - ANSWER-number of protons and electrons Atoms - ANSWER-the smallest part of an element that exist Areaking old bonds... - ANSWER-uses energy Charge of a neutron - ANSWER-0 Charge of a proton - ANSWER-+1 Charge of electron - ANSWER--1 Chromatography - ANSWER-separating mixtures of dissolved substances Compounds - ANSWER-pure substances made from 2 or more elements chemically bonded Concentration= - ANSWER-mass / volume Control variable - ANSWER-thing that is kept the same Covalent bonding - ANSWER-•happens in non-metals •share electrons in their outer shell Covalent bonds - ANSWER-two shared electrons joining atoms together - are strong