Decide which acid in each of the following pairs is the stronger and explain why: (a) hf or hcl; (b) hclo or (c) or (d) or (e) or (f) or.

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)

Ab c or d ? i’m not sure what the answer is

If e is the symbol for an element, which two of the following symbols represent isotopes of the same element? 1. e2. e3. ea.1 and 2c.1 and 4b.3 and 4d.2 and 3