Water is known as a polar molecule because check all that apply. a. the oxygen and hydrogen atoms have the same electronegativity. b. its molecular geometry is bent. c. the electrons of the covalent bond are not shared equally between the hydrogen and oxygen atoms. d. the oxygen atom has a greater attraction for electrons than the hydrogen atom does. e. water dipole moment is equal to zero. f. the hydrogen atom attracts electrons much more strongly than the oxygen atom.

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size

How do temperature and salinity affect deepwater currents? as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?