Describing Acids and Bases

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ACIDS AND BASES

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Describing acids and bases

Presentation transcript:

Describing Acids and Bases

Some Important Acids (All acids have H atoms)

Properties of Acids Sour Taste Reacts with Metals (Produce Hydrogen Gas) Reacts with Carbonates (Produce CO2) Turn Litmus Paper Red

Natural Indicators The color of many hydrangea blooms acts as a natural pH indicator for the soil in which the plant grows. Such blooms have blue sepals when the shrub grows in acidic soil, but develop red or pink sepals when grown in neutral to basic soils. The hydrangea’s bloom color reveals the pH of the soil, but with its distinguishing colors being the reverse of those for litmus paper. The hydrangea is unique among plants in this ability to indicate soil acidity.

Uses of Acids Food (Citric – Oranges and Tomatoes) Home (Muriatic acid-clean surfaces) Industry (Nitric Acid-Fertilizer) Body (Hydrochloric Acid Stomach digest proteins)

Some Important Bases

Properties of Bases Bitter Taste Slipper Feel React with Indicators. Bases turn litmus paper blue

Uses of Bases 1. Food -Baking Soda 2. Health- Milk of Magnesia 3. Home- Cleaners (Ammonia) 4. Industry- Cement (Calcium Hydroxide)