Suppose you have a mixture of solid KCl and MgCO3. The physical and chemical properties of KCl are similar to those of NaCl, and the properties of MgCO3 are similar to those of CaCO3. Provide a flowchart showing how you would separate and recover two components of the mixture.

Which sentence about particles in matter is true? a. atoms are present in solids and liquids but not in gases. b. the particles of matter are in constant motion. c. the same kinds of atoms are found in different elements. d. when a solid changes to a liquid, the sizes of the particles change.

Connect the whole numbers on the periodic table to indicate what they represent?

To find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? a) when more work was done, the couch was moved the same distance. b) when more work was done, the couch was moved less. c) when more work was done, the couch was moved further. d) when more work was done, the couch wasn't moved at all.