2KCIO. 2KOI
30,
2
How many moles of potassium Chlorate are needed to produce 15.0 moles of oxygen

Using complete sentences, explain how to predict the products and balance the reaction between sulfuric acid and potassium hydroxide.

List four observations that indicate that a chemical reaction may be taking place

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)