Combustion and neutralisation Study guides, Class notes & Summaries

EDEXCEL CHEMISTRY PAPER 2, question and answer, verified Proton c/m? +1, 1 Neutron c/m? 0, 1 Electron c/m? -1, 1/1500 Mass number? Num of protons + neutrons Atomic number? Num protons Isotope? Different atom of the same element, same num protons. Diff number neutrons. Mendeleev vs Now? Mendeleev: Gaps for elements, No noble gases, fewer elements. Both had metals and non-metals. Both had groups/periods Periods? Rows, Increasing atomic m...

GCSE COMBINED SCIENCE: SYNERGY Foundation Tier Paper 3 Physical Sciences Friday 9 June 2023 Afternoon Time allowed: 1 hour 45 minutes Materials For this paper you must have: l a ruler l a protractor l a scientific calculator l the periodic table (enclosed) l the Physics Equations Sheet (enclosed). Instructions l Use black ink or black ball-point pen. Pencil should only be used for drawing. l Fill in the boxes at the top of this page. l Answer all questions in the spaces provided. D...

GCSE COMBINED SCIENCE: SYNERGY 8465/3F Foundation Tier Paper 3 Physical Sciences Version: 1.0 Final G/LM/Jun23/E6 8465/3F (JUN2384653F01) GCSE COMBINED SCIENCE: SYNERGY Foundation Tier Paper 3 Physical Sciences Friday 9 June 2023 Afternoon Time allowed: 1 hour 45 minutes Materials For this paper you must have: l a ruler l a protractor l a scientific calculator l the periodic table (enclosed) l the Physics Equations Sheet (enclosed). Instructions l Use black ink or black ball-po...

condensed notes on enthalpy profile diagrams, energy changes, enthalpy changes of combustion, formation and neutralisation, average bond enthalpy, hess' law.

Element a substance made up of 1 type of atom Compound a substance made up of more than 1 type of atom - chemically bonded 00:02 01:39 Atom the smallest electrically neutral particle of an element that can take part in a chmeical change Molecule the smallest electrically neutral particle of an element or compound that can exist on its own The mole the amount of substance which contains the same number of particles as there are carbon atoms in 12g of car...

AQA GCSE Chemistry What is the charge of a proton? - ANS +1 What is the charge of a neutron? - ANS 0 What is the charge of an electron? - ANS -1 What is the relative mass of a proton? - ANS 1 What is the relative mass of a neutron? - ANS 1 What is the relative mass of an electron? - ANS Very small How many types of atoms do elements contain? - ANS Only one type What are compounds? - ANS Substances containing two or more different elements that...

In these notes it summarises what enthalpy of formation, combustion, neutralisation and reactions are. Also learn how to calculate bond enthalpies and how to construct Hess’ law cycles.