What is the concentration of the base (naoh) in the following titration? a) 3.0 m b) 142.2 m c) 3.79 m d) 3.86 m

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Describe the interaction that occurs between two objects with the same electrical charge.

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?