According to the law of conservation of energy, energy cannot be nor

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)

Chemical engineering who specializes in negotiating for large purchases and instructing customers in use of the products are

Stoichiometry- i need with 14 and 15! an explanation would be appreciated!