Traveling at the speed of light, how long would it take to reach the Milky Way's black hole? Question 3 options:

1,000 days

30 years

1 day

26,000 years

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

An observation that requires measurement is called quantitative observable or qualitative

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?