Explain when heat and work are positive or negative

What shape would a molecule with two bound groups and two lone pairs have?

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum