Which phrase best describes a machine? -any device that makes work easier
-any device that moves an object
-any device that has multiple parts
-any device that uses energy

Idon’t understand this page, can someone ?

Calculate the molarity of each of the following solutions. part a) 0.12 mol of lino3 in 5.5 l of solution part b) 60.7 g c2h6o in 2.48 l of solution part c) 14.2 mg ki in 100 ml of solution

What natural processes produce large quantities of co2