NaOH has a molarity of 2.5 M and a volume of 4 Liters, how many moles are in

the solution?

6. A rectangular block of wood has length 6.0 cm, width 5.0 cm and height 10.0 cm. It has mass l50g. What is the mass of a block of the same type of wood of length 3.0 cm, width 5.0 cm and height 20.0 cm?

Heat loss by radiation depends on temperature. if we double the temperature of an object the rate of heat loss by radiation increases by a factor of:

A sample of methane gas occupies 4.50 gallons at a temperature of 80.0 F. If the pressure is held constant, what will be the volume of the gas at 100. degrees C?

15.35 L of gas is at a pressure of 198.0 kpa. At what pressure would the gas have a volume of 13.78

physical changes don't change chemical identity, but chemical reactions do change the chemical identity of something: true or false

Hiw many moles of 12c in 3.50g

All changes in chemistry are chemical? True or false?

People who practice which of the following diets may run the risk of not getting enough iron. A. Gluten free or vegan diet B. Diet for managing diabetes C. Vegan diet D. Gluten free diet

Alpha particles beamed at thin metal foil may a. pass directly through without changing direction b. be slightly diverted by attraction to electrons c. be reflected by direct contact with nuclei d. A and C e. A, B, and C

Why is the solubility of a neutral organic compound unaltered by exposure to aqueous acid or base?