Is a Cork Cell unicellular or multicultural?

Which of these are physical changes in matter? check all that apply boiling water a pencil being sharpened exploding dynamite freezing water rotting cheese

When microscope slides are stained to show blood cells, the small red blood cells that appear on the slides are much numerous than the large white blood cells. this supports the concept that

Hno2 + caco3 = h2co3 + ca(no2) can someone balance this