Examine these two MSDS from different
manufacturers for sodium hydroxide (NaOH).
Compare and contrast the following aspects:
chemical names, chemical properties, order of
components, health hazards, and proper disposal.
Click on each of the links to examine two MSDS
reports from different sources.
Sodium Hydroxide Version 1
Sodium Hydroxide Version 2

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)