PLEASE HELP ASAP!! How much energy is needed to raise the temperature of 40.0 g of argon from 25
degrees C to 40 degrees C? The specific heat capacity of argon is 0.520 J/(g-K).
208 J
20.8 J
312 J
0416J

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.

When balancing a chemical equation:

Find the mass, in grams, of 5.00*10^23 molecules of f2