Areaction between an acid and a base produced lithium chloride (licl). what acid and base combination could produce this salt?
a - sulfuric acid and lithium hydroxide
b - hydrochloric acid and lithium hydroxide
c - sulfuric acid and magnesium hydroxide
d - hydrochloric acid and magnesium hydroxide

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)