Who was credited with creating the first periodic table? a. johann dobereiner b. henry moseley c. dimitri mendeleev d. john newlands

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)

What occurs when a cell engulfs large food particals

The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?