IGCSE Chemistry Definitions Quiz

Solid changing into a liquid

Liquid changing into a solid

Gas/vapour changing into a liquid

<p>Liquid changing into a gas/vapour</p> Signup and view all the answers

<p>Temperature at which a solid turns into a liquid</p> Signup and view all the answers

<p>Temperature at which a liquid changes into a solid</p> Signup and view all the answers

<p>Temperature at which a liquid changes into a vapour at atmospheric pressure</p> Signup and view all the answers

<p>The random movement of particles from an area of high concentration to an area of low concentration</p> Signup and view all the answers

<p>Separating an insoluble solid from a liquid</p> Signup and view all the answers

<p>A fluid that has passed through a filter</p> Signup and view all the answers

<p>The material that dissolves in a solvent to form a solution</p> Signup and view all the answers

<p>The mixture formed when a solute dissolves in a solvent</p> Signup and view all the answers

<p>The liquid in which the solute dissolves to form a solution</p> Signup and view all the answers

<p>Separating liquids of different boiling points by evaporation and condensing</p> Signup and view all the answers

<p>The coating of iron by zinc to protect from rusting</p> Signup and view all the answers

<p>The number of protons in an atom</p> Signup and view all the answers

<p>The smallest unit of an element, having all the characteristics of that element</p> Signup and view all the answers

<p>The sum of the protons and neutrons</p> Signup and view all the answers

<p>The centre of the atom which contains protons and neutrons</p> Signup and view all the answers

<p>Atoms of the same element with the same atomic number and different number of neutrons</p> Signup and view all the answers

<p>Made of only one type of atom</p> Signup and view all the answers

<p>Made of two or more different atoms chemically joined together</p> Signup and view all the answers

<p>Made of two or more different components which are not chemically joined together</p> Signup and view all the answers

<p>The columns in the Periodic Table</p> Signup and view all the answers

<p>The rows of the Periodic Table</p> Signup and view all the answers

<p>A very strong electrostatic force of attraction between oppositely charged ions</p> Signup and view all the answers

<p>A very strong electrostatic force of attraction between shared pairs of bonding electrons and the nuclei of their atoms</p> Signup and view all the answers

<p>A strong electrostatic force of attraction between positive metal ions and their sea of delocalized electrons</p> Signup and view all the answers

<p>A charged particle resulting from ionic bonding</p> Signup and view all the answers

<p>A particle formed from covalent bonding which is neutral</p> Signup and view all the answers

<p>Change in product or reactant concentration per unit time</p> Signup and view all the answers

<p>Substance which increases the rate of reaction without chemically being changed</p> Signup and view all the answers

<p>A biological catalyst e.g. Amylase</p> Signup and view all the answers

<p>The sum of the atomic masses of elements in a compound</p> Signup and view all the answers

<p>One mole of a substance contains the same number of molecules/atoms as in 12 grams of carbon-12</p> Signup and view all the answers

<p>A reaction which gives out heat (ΔH is negative)</p> Signup and view all the answers

<p>A reaction which takes in heat (ΔH is positive)</p> Signup and view all the answers

<p>A scale of 0 - 14 which identifies solution as acidic, neutral or alkaline</p> Signup and view all the answers

<p>A substance with a pH higher than 7</p> Signup and view all the answers