Near Tatooine's famous Mos Eisley Space port you found a 774.92 mL block of gold. What is the mass in kilograms of this block? HELp me please!! I need to turn this in soon (1000 g = 1 kg, 2.2 lbs = 1 kg)

Metal Density (g/cm3)
Aluminum 2.7
Zinc 7.1
Copper 9.0
Silver 10.5
Lead 11.4
Gold 19.3

Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.

Type the letter that represents the correct location for each particle type below.

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m