5. A statement is missing from the atomic theory given below. What is missing?
Atoms of different elements have
different properties.
All matter is made of small, indivisible
particles called atoms.
Atoms of different elements can combine
in specific ways to form new substances.

4. propanol and isopropanol are isomers. this means that they have a) the same molecular formula but different chemical properties. b) different molecular formulas but the same chemical properties. c) the same molecular formula and the same chemical properties. d) the same molecular formula but represent different states of the compound

Chemical bonds result from the interaction of the from two or more atoms. a. protons b. electrons c. neutrons d. nuclei

All chemicals, even safe chemicals, such as sodium chloride( table salt), are toxic if exposure is high enough. (true or false)