A sample of air occupies 2.50 L at a temperature of 22.0c. what volume will this sample will this occupy inside a hot air baloon at a temperature of 43.0c assume that the pressure inside the balloon remains constant.

Intravenous, or IV, solutions used in medicine must exert the same osmotic pressure as blood to prevent a net flow of water into or out of the blood cells. The proper concentration for an intravenous NaCl solution is 0.90 g NaCl per 100.

Which electron configuration represents a selenium atom in an excited state? (1) 2-7-18-6 (2) 2-7-18-7 (3) 2-8-18-6 (4) 2-8-18-7

The sea of electrons in metals acts as

Which particle is most likely present in the nucleus of the atom

Extrapolation allows you to estimate values greater than those in your actual data. True False

Which best describes the transition from gas to liquid? Energy must be removed because particles in liquid move more slowly. Energy must be added because particles in liquid move more quickly.

Calculate the mass of a 0.255-ml sample of a liquid with density 0.660 g/ml.

Which statement correctly describes the interaction between magnetic poles? North and south poles attract each other. North and south poles repel each other. Two north poles will attract each other. Two south poles will attract each other.

You are measuring the mass of various shapes objecys and identifying their shaped ypu then record the qualitative and quanatitave data in a table is qualitataive wnd which is quatitaive

A positively charged wire is attracted to a negatively charged piece of metal. What force causes this?