Gold has a molar mass of 197 g/mol. (a) how many moles of gold are in a 3.98 g sample of pure gold? (b) how many atoms are in the sample?

What phase of matter has particles that are held together but can flow past each other and takes the shape of a container, filling it from the bottom up? Gas Liquid Plasma Solid

warming oceans temperatures directly lead to all of the following except A sea level rising B coral bleaching C ocean deoxigenation D pollution

A geologist discovered fossils of marine animals in a layer of sedimentary rock in the desert. Based on this discovery, what conclusion can the geologist draw?

Round the following answer correctly. 5.40m x 3.21m x 1.871m = 32.431914 m^3

Which of the forces of molecular attraction is the weakest? a double covalent bond b single covalent bond c ionic bond d hydrogen bond?

How many covalent bonds can each carbon atom form?

Hich element is likely to be the most brittle? a. selenium b. cobalt c. platinum d. zinc

What units should they have used in order to make the correct conversion

The brown solid that formed is zinc copper oxygen iron

a solution is approximately 332.0 g of salt per kilogram of solution. Assume this salt is all NaCl. What is the molality of this solution?