Which of the following is an example of a model?

A-pV

B-a geographical map

C - a belief that aliens exist

D-all the above

What are the uses of methanol?

Suppose 30 grams of NaCl are placed in 900 mL of water. What is the molarity of this solution?

What happens to the pressure inside a rigid container if the amount of nitrogen gas increases from 0.500 mole to 0.750 mole? The original pressure is 98.0 kPa, and the temperature remains constant.

Why is it important to use low flame when evaporating water from a recovered filtrate?

What are properties of radio waves

How many moles of co2 are produced when 10 mol of propane (c3h8) is burned in excess oxygen?

Why are the spheres representing nitrogen and oxygen different colors

How many moles are in 16.94g of water?

Two compound samples are found to have the same mass percentages of the same elements. what can you conclude about the two samples

Sodium hypochlorite (Na xCl yO z) is the active ingredient in household bleach. A 250.0 g sample of sodium hypochlorite contains 77.2 g sodium, 119.1 g chlorine, and the remainder is oxygen. Calculate the empirical formula of sodium hypochlorite.