Cambridge O Level Chemistry 2.1 Elements, Compounds & Mixtures PDF
Document Details
Uploaded by JoyfulBronze2538
Cambridge
Tags
Summary
This document provides an overview of elements, compounds, and mixtures in Cambridge O Level Chemistry. It explains the differences between these three types of substances and includes particle diagrams showing elements, compounds, and mixtures. This is a useful resource for chemistry students.
Full Transcript
Head to www.savemyexams.com for more awesome resources Cambridge O Level Chemistry Your notes 2.1 Elements, Compounds & Mixtures Contents Elements, Compounds & Mixtures...
Head to www.savemyexams.com for more awesome resources Cambridge O Level Chemistry Your notes 2.1 Elements, Compounds & Mixtures Contents Elements, Compounds & Mixtures Page 1 of 2 © 2015-2024 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers Head to www.savemyexams.com for more awesome resources Elements, Compounds & Mixtures Your notes Elements, Compounds & Mixtures Elements, compounds and mixtures All substances can be classified into one of these three types Element A substance made of atoms that all contain the same number of protons and cannot be split into anything simpler There are 118 elements found in the Periodic Table Compound A pure substance made up of two or more elements chemically combined There is an unlimited number of compounds Compounds cannot be separated into their elements by physical means E.g. copper(II) sulfate (CuSO4), calcium carbonate (CaCO3), carbon dioxide (CO2) Mixture A combination of two or more substances (elements and/or compounds) that are not chemically combined Mixtures can be separated by physical methods such as filtration or evaporation E.g. sand and water, oil and water, sulfur powder and iron filings Particle diagram showing elements, compounds and mixtures Page 2 of 2 © 2015-2024 Save My Exams, Ltd. · Revision Notes, Topic Questions, Past Papers
