Polar covalent bonds are formed when the electrons in the bond are not shared equally between the two nuclei. which one of these molecules contains polar bonds?

Is 9 correct? and can someone me with 10? it’s due tomorrow, you

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?