https://www.pobschools.org/cms/lib/NY01001456/Centricity/Domain/517/Copy%20of%20elements-compounds-mixtures020714hw.pdf
The smallest unit of an element that has all the basic properties Essential Question: What are elements compounds
Pure Substance or Mixture. Element Compound
BISS needs your help to determine if mixtures have chemically bonded and if there is hope for separating the components so that they can continue their thriving
https://www.hcboe.us/cms/lib/AL02210044/Centricity/Domain/284/2.mixtures%20solutions%20and%20compounds.pdf
But for a scientist all these things are actually mixtures of different substances and hence not pure. For example
A pure substance containing only one kind of atom. An element is always uniform all the way through (homogeneous). An element cannot be separated into simpler
The properties of a homogeneous mixture are constant (salt solution). A pure substance may be either a compound (water) or an element (gold).
actually a mixture of water fat
https://www.montgomeryschoolsmd.org/departments/itv/TeacherGuides/MatterInAction/ElementsCompoundsMixtures_TG.pdf
Atoms of two or more different elements joined together by chemical bonds In the animation above water (H20) is a compound made of Hydrogen and Oxygen
stands for the element hydrogen and the O stands for the element oxygen So H2O means two atoms of hydrogen mixed with one atom of oxygen All pure water is
What is a pure substance? *Pure substances contain only one kind of matter – Elements: oxygen (O) gold (Au) – Compounds: salt sugar pure water
For example sea water air and vinegar Steel is a homogeneous mixture however it is made from iron and carbon A pure substance is different from a homo-
Differentiate between elements and compounds compounds and mixtures A water molecule has three atoms i e one oxygen
For example every sample of water has a 1:8 mass ratio of hydrogen and oxygen Properties of Compounds •Each compound can be identified by its physical and
element (E) a compound (C) a Heterogeneous Mixture (HM) or a Solution (S) 2 Freshly-brewed black coffee 3 Water compound 4 Lucky Charms®
represents an item composed of an element compound or mixture Review: An element contains just one type of atom A compound contains two or more
1 fév 2016 · Elements Compounds Mixtures • Example: A molecule of the compound water H 2 O composed of two atoms of hydrogen and one atom of