How is the density of an irregular object found

A train travels 120 kilometers 2 hours and 30 minutes what is the average speed

What is the pH of a 1.0 X 10 - M solution of nitric acid?

The temperature of 75 mL of gas is decreased from 450 K to 150 K while the pressure is held constant. What is the new volume of the gas? A 25 ml B. 225 mL C. 300 mL D. 375 mL

If 30.0 mL of a 12.0 M hydrochloric acid (HCI) stock solution is diluted to a volume of 500.0 mL, what is the molarity of the dilute solution?

Calculate the mole fraction of cai2 in an aqueous solution prepared by dissolving 0.400 moles of cai2 in 850.0 g of water.

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda