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CHECK YOUR GRADE… IF YOU HAVE ANYTHING HIGHLIGHTED THEN YOU NEED TO TURN IN MISSING OR MAKEUP WORK BEFORE ARTS/PE TODAY (MONDAY)! –Assignment 2 was Key Question 12 –Assignment 4 was the “What is pH?” Article Any missing/makeup work not turned in before Arts/PE will not be reported on the interim.

Make a table listing substances that are acidic, basic, and neutral. ACIDSBASESNEUTRALS

Today’s Agenda Warm-Up: Acid, base, neutral substance identification Classwork: –Properties of Acids, Bases, and Neutrals –BrainPop – Acids and Bases –Acid and Base Property Sort (ActivInspire) Homework: –Key Question 13 Exit Slip –Study for Quiz Wednesday Conclusion: –Identify the reactants and products in a chemical reaction.

Student Objective Thursday, June 23, 2016 Students will be able to… Identify the common properties of acids and bases.

Acids and Bases

pH of common substances pH = 0: battery acid, strong hydrofluoric acid pH = 1: acid secreted by the lining of the stomach pH = 2: lemon juice, vinegar pH= 3: grapefruit, orange juice, soda pH = 4: tomato juice, acid rain pH = 5: black coffee pH = 6: urine, saliva pH = 7: distilled water (neutral) pH = 8: sea water pH = 9: baking soda pH = 10: milk of magnesia pH = 11: ammonia solution pH = 12: soapy water pH = 13: bleach, oven cleaner pH = 14: liquid drain cleaner

What do you know about substances that are acidic, basic (alkaline), or neutral? ACIDSBASES NEUTRAL

pH 1-6.9, Tastes sour and has many H HH Hydrogen atoms. Dissolve other substances. pH , Tastes bitter and has many H HH Hydrogen-Oxygen combinations. They feel slippery and make good cleaners. PROPERTIES

Can be balanced or neutralized with an acid. Higher pH number means more base. pH 7.1 to 14 Many hydrogen and oxygen ions combined in hydroxyl groups (OH-) Equal number of hydrogen ions (H+) & hydroxyl groups (OH-) pH 7 Distilled (pure) water is neutral Makes good cleaner Tastes bitter Many hydrogen ions (H+) pH 1 to 6.9 Lower pH number means more acidic. Can be balanced or neutralized with a base. Dissolves other substances Tastes sour Feels slippery

HOMEWORK Key Question 13 Exit Slip Study for Quiz 2 (Wednesday) Always copy daily homework into your agenda.

KEY QUESTION 13: What is pH and how is it determined? Define pH and explain what pH stands for. pH is a measure of how ____________ or ___________ a substance is. pH stands for ________________ of __________________. Describe the pH scale and explain what it measures. The pH scale ranges from _____ to _____. It measures how many ___________________ atoms or ___________________ groups are in a substance. Identify the characteristic properties of acids and bases. Acids have a pH range from _____ to _____, bases have a pH range from _____ to _____, and neutrals have a pH of exactly _____. List the properties of acids and bases in the table below: Define indicator, provide 2 examples of substances that are indicators, and explain how they work. An indicator is a substance that ____________________________ in acids and bases. Red cabbage juice is an indicator that changes _______________ in acids and ______________ in bases. Other indicators include…_____________________________________________________________ ACIDS BASES

What type of substances feel slippery, taste bitter, and are good cleaners. A.Acids B.Bases C.Neutrals D.All of the above ???