How many moles of tungsten atoms are there in 4. 8 x 10^25 atoms of tungsten?.

If you measure your shoe size would it be considered qualitative data?

Remote sensing of the earth's surface and atmosphere may involve the use of what type of instruments?

Case # 51173878 weighs 814 pounds; case # 51173981 weighs 803 pounds; case # 51174058 weighs 817 pounds; case 51174178 weighs 815 pounds; case # 51174248 weighs 817 pounds; case # 51174495 weighs 781 pounds; case # 51174577 weighs 828 pounds. what are the case #'s of the two cases that weigh the same amount?