How many moles of potassium oxide (K2O) will be formed when 37.3 moles of potassium (K) reacts with oxygen (O2) to the following reaction: 4K + O2 - 2 K20

After watching the video "zinc strip in copper nitrate solution", and reading the instructions, click on the link labeled "start" just below the drawing of the pencil tip. follow the direction to complete the 3x3 grid. answer the below questions for the portion of the activity in which sn(s) is placed in agno3(aq)

How many mmols of tris-hcl are there in 100 ml of a 100 mm tris-hcl buffer solution at ph 8.1? note that the 100 mm refers to the sum of tris and tris-hcl concentrations?

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17