Across
- 1. new substances produced in a chemical reaction
- 3. base indicator a substance that changes color when added to an acid or base
- 4. of conservation of mass during a chemical reaction, the total mass and number of atoms of the reactants equal the total mass and number of atoms of the products
- 6. reaction a chemical reaction in which two or more reactants combine to produce a new product
- 8. reaction a change in matter that produces new substances with new properties.
- 10. displacement reaction a type of chemical reaction in which the metal ions of two different compounds exchange places.
- 15. reaction a chemical reaction between an acid and a base that “neutralizes” their acidic and basic properties
- 17. reduced in concentration by being mixed with a liquid, such as water
Down
- 2. substances that react together in a chemical reaction
- 5. reaction a type of reaction in which one compound breaks down into two or more simpler compounds or elements
- 6. displacement reaction a type of chemical reaction in which one element takes the place of another element in a compound.
- 7. scale a scale from 0 to 14 that describes how acidic or basic a substance is
- 9. an atom or molecule in which the total number of electrons is not equal to the total number of protons, giving the atom or molecule a net positive or negative electrical charge.
- 11. a compound that tastes bitter, has a slippery texture, corrodes tissue, and turns red litmus paper blue.
- 12. a compound that tastes sour, corrodes metals and tissue, and turns blue litmus paper red
- 13. chemical equation represents a chemical reaction using coefficients (numbers in front of the reactants and products) that tell you how much of the reactants are used and how much of the products are made
- 14. equation uses words instead of chemical formulas to describe what happens to reactants and products during a chemical reaction
- 16. non-toxic base that is used to neutralize stomach acid; relieves the pain of excess stomach acid (acid reflux or heartburn)