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Science 4/23
vocab and study guide
| Question | Answer |
|---|---|
| An _____ tastes sour and turns blue litmus paper red | acid |
| Ammonia and baking soda, which are _____, taste bitter and turn red litmus paper blue | bases |
| Acids give away hydrogen particles, or ______ ions in a reaction | hydronium |
| Particles that are made up of one oxygen and one hydrogen atom linked together are called ______ ions | hydroxide |
| Water is neither acidic or basic and is therefore ________ | neutral |
| a substance that tastes sour and turns blue litmus paper red | acid |
| a substance that tastes bitter and turns red litmus paper blue | base |
| Neither acid or base | neutral |
| a substance such as a litmus paper whose color changes | indicator |
| the strength of an acid | acidity |
| the strength of a base | alkalinity |
| scale that tells how acidic or basic of a solution | pH scale |
| An _______ is a substance that changes color when it is mixed with an acid or a base | indicator |
| __________________ , a common vegetable indicator, is colorless in acid and turns pink in a base | Phenolphtnalion |
| A test kit has paper strips that are soaked with an indicator to reveal how _______ the soil is | acidic |
| Aquarium owners and pond owners periodically have to check how acidic the _____ is to make sure it is healthy for the fish and plants | water |
| The strength of an acid is its _______ | acidity |
| The strength of a base is its ________ | alkalinity |
| Acidity and alkalinity depend on how many hydronium and hydroxide _____ there are in a solution | ions |
| Soren Sorenson developed the ______ scale in 1909 to compare acidic and basic solutions | pH |
| A pH of _____ means that there are a lot of hydronium ions in the solution, the solution is very acidic | one |
| A pH of ______ means that there are hydroxide ions in a solution. and the solution is very basic | 14 |
| pH ________ changes to a different color depending on the exact pH of a solution | paper |
| Many _______, like tomatoes, grapefruit, lemons, and limes get their flavor from acids | food |
| __________ help to increase the pH of your stomach back to its normal level | Antacids |