Calculate the ph of a solution that has a [oh-] = 2.50 x 10-4m.

Which best describes the direction of heat? 1) from a substance with no thermal energy to a substance with high amounts of thermal energy 2) from a substance with less thermal energy to a substance with more thermal energy 3) from a cooler substance

Molecules of SiO2 would have a mass of 12.40 g

Electrons have almost no mass. True False

Convert 1.8 moles of potassium to atoms

State the reason that soft drinks is a mixture and water is a compound?

Given the generic chemical reaction below write the rate of the reaction

23 For a reaction at equilibrium, which change can increase the rates of the forward and reverse reactions?

If the formula for potassium chlorate is KClO3 and the formula for magnesium fluoride is MgF2, then what isthe formula for magnesium chlorate?

How can you tell if a chemical reaction has occurred?

An engineering team is conducting a trial launch of a new rocket. Which part of the engineering process is the team in?