Which one of the following solutions has the value?
a- 2 molar hcl
b- 2 molar hno3
c- 2 molar h2so4
d- 2 molar h3po4

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)