Download presentation
Presentation is loading. Please wait.
Published byJocelin George Modified over 9 years ago
1
Benchmark SC.8.P.8.5 Recognize that there are a finite number of elements and that their atoms combine in a multitude of ways to produce compounds that make up all of the living and non- living things that we encounter SC.8.P.8.8 Identify basic examples of and compare/classify the properties of compounds, including acids, bases, and salts. Combination of elements to form compounds
2
Bellringer: 3 minutes!
3
Compounds two or more elementschemically combined A compound is a substance which is made up of two or more elements that have been chemically combined together. Elements chemically combined? What do you mean?
4
Put the two together = sodium chloride!! Table Salt, a perfectly safe, edible compound Sodium- is a soft silvery white metal that reacts violently with water Compounds Chlorine-is a poisonous, greenish yellow gas. + Sodium chloride (table salt) Table salt is made out Sodium and Chlorine. Cannot be separated by physical means! It is different to Sodium and different to Chlorine!
5
A compound… two or more elementschemically combined. Is a substance which is made up of two or more elements that have been chemically combined. Can be chemical means Can be broken down into a simpler type of matter (elements) by chemical means (but not by physical means). Has properties different elements. Has properties that are different from its component elements. Ex: In a water molecule Hydrogen and Oxygen are gases but when they combine together they form a liquid. same ratio Always contains the same ratio of its component atoms. Ex: In a water molecule there are 2 Hydrogen atoms per every Oxygen atom (H2O). And in a peroxide molecule there are 2 Hydrogen atoms per every 2 Oxygen atoms. Let’s check!
6
What is a compound? Cu Is this a compound? It only contains one type of element. Is this a compound? H H H H O O O It is not chemically combined. Why not? two or more elementschemically combined A compound is a substance which is made up of two or more elements that have been chemically combined together. H It only contains one type of element. O H H O H H O H H Yes! Is this a compound?
7
Examples of compounds ACIDS taste sour and turn blue litmus paper red. BASES feels slippery and turns blue litmus paper darker blue.
8
Acids and Bases
9
Hands on time!
10
Challenge Time Answer the 5 FCAT like questions on your own!
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.