Acids and Alkalis http://www.gcsescience.com/index.html When a substance dissolves in water, the solution may be acidic, neutral or alkaline. What is an Acid? An acid is…

1.Chapter Three2.  An acid is a substance that produces hydrogenions when dissolved in water. Examples of acids are hydrochloric acid (HCl),sulphuric acid (H2SO4),…

1. Physical and ChemicalChangesChange is COOL! 2. Physical vs. Chemical ChangesPhysical changes occur when substances orobjects undergo a change without changing intoanother…

Boardworks Ltd 20081 of 47 Boardworks Ltd 20082 of 47 Boardworks Ltd 20083 of 47Acids and alkalisHow many examples of acids and alkalis can you spot? Boardworks Ltd 20084…

Acids and Bases Acids and Bases Year 10 Ms Gibellini Mix together the following ingredients: 1/2 teaspoon of citric acid crystals ACID 1 teaspoon of icing sugar 1/2 teaspoon…

Slide 1Do you already know what the pH scale is? Show me! Try to draw it out! Include the numbers and what is considered “acid” or “base.” 1 Slide 2 2 The Sweet &…

Slide 1 TEST Stats Majority of questions were on INB test prior to spring break I eliminated 4 questions 1 st per-50% avg 3 rd per- 46% avg 5 th per 39% avg 6 th per 47%…

Slide 1 Acids, Alkalis and Indicators Prepared by Mdm RY Leow The Chinese High School Slide 2 Acids What causes the sour taste in these beverages? The presence of citric…

Slide 1 Physical and Chemical Changes Change is COOL! Slide 2 Physical vs. Chemical Changes Physical changes occur when substances or objects undergo a change without changing…

Slide 1 ½ sheet of paper and Chemistry book out About ¼-½ a page Use your own words to describe acids and bases. –Give examples of acids and bases. –What is pH? –(Mr.…