1. a sample of gold (au) has a mass of 35.12 g.

a. calculate the number of moles of gold (au) in the sample and record in
table 1. show your work.

b. calculate the number of atoms of gold (au) in the sample and record
in table 1. show your work.

show your work this is chemistry!

Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

Light waves travel than sound waves.

Need asap question 1 minerals are organic compounds. true false question 2 what vitamin can be found in foods like oranges, grapefruits, and broccoli? a. vitamin a b. vitamin k c. vitamin c d. vitamin d question 3 what are minerals? a. chemical elements that are needed for body processes. b. organic compounds that the body needs in small amounts to function properly. c. small molecules used to build proteins. d. an organic compound that is insoluble in water and includes fats. question 4 how many types of vitamins does the human body need? a. 15 b. 11 c. 13 d. 17 question 5 vitamins are a good source of energy. true false