A student finds a rock ont the way to school in the labratory he determines that the volume of the rock is 22.7 mL and the mass in 39.743 g what is the density of the rock

Which allotrope of carbon is used in lubricants, sporting goods, and aircraft? a. graphite b. diamond c. fullerene d. coal

Which coefficients correctly balance the formula equation cao + h2o ® ca (oh) 2?

What is thermal conduction? A. Heat transfer from one molecule to another B. Heat transfer around an insulation block C. Heat transfer through circulating currents D. Heat transfer through electromagnetic waves

How does sediment form?

Match the terms with their correct definition: A.) aqueous B.) alloy C.) colloid D.) immiscible E.) soluble F.) solute G.) solvent 1.) the substance being dissolved 2.

A balloon contains 1.00 mol helium gas at STP. What will the volume of the balloon be if the pressure increases to 2.00 atm?

If 100 mL of a gas were enclosed in a buret at 500 mm Hg, what volume would the gas occupy at 1000 mm Hg at the same temperature? P1V1=P2V2

Would Mn (HPO4) 2 be manganese (II) monohydrogen phosphate?

The fundamental frequency of a violin string is 440 hz. the frequency of its second harmonic is

How much of a 15.0M stock solution do you need to prepare 250ml of a 2.35ml hf solution?