What amount of heat is required to raise the temperature of 20 grams of water from 10°C to 30°C? The specific heat of water is 4.18 J/g°C.

If you want to increase the gravitational force between two objects, what would you do

You have 4.872 x 1034 atoms of Copper. How many moles is this?

A strip of litmus paper is put into a solution and turns blue. Which statement about the solution is true? A. The solution is neutral B. The solution is acidic C. The solution is basic D. The solution has no pH

Is this statement true or false? Bases will turn litmus paper red. a. True b. False

Molar mass of potassium

Which of the following statements about chemical formulas is FALSE? A) The subscripts represent the relative number each type of atom in the compound. B) The subscripts represent the relative mass of each type of atom in the compound.

The lowest possible concentration of free hydrogen ions is represented by a ph value of

Diseases that are inherited are caused by

Why do many metal ions produce acidic solutions when dissolved in water?

Which property of potential energy distinguishes it from kinetic energy? a. mass b. position c. force d. work and power