Question

fill in the blanks using the word bank. elements, mixtures, compound, symbols, properties, letters, periodic table, pure, carbon dioxide. 16. elements are abbreviated with __ which consist of one or two letters. 17. elements cannot be separated by physical or chemical means. 18. elements are organized on the . 19. two or more elements chemically combined make up a . 20. carbon is an example of an element and is an example of a compound. 21. elements and compounds are called substances because they have a unique set of chemical and physical __. identify whether the underlined phrases in the following paragraph are chemical changes, physical changes, or neither. write your answer in the lines provided.

Explanation:

Elements are abbreviated with symbols. They are organized on the periodic table. Two or more chemically - combined elements make a compound. Elements and compounds are pure substances with unique properties.

Answer:

1. symbols
2. periodic table
3. compound
4. pure
5. carbon dioxide
6. properties