Hydrogen has 3 isotopes 1 H 2 H and 3 H. What is the difference between these 3 isotopes

Does every change from one form of energy to another form?

What is the mass number of the isotope zinc - 65? a. 30 b. 65 c. 35 d. 95

How does a scientist answer a scientific question? a. by guessing the right answer b. by asking others for their opinions c. by observing and measuring d. by finding the answer in a book

How many grams of potassium reacts with 16 grams of oxygen to produce 94 grams of potassium oxide

Suppose of lead (II) acetate is dissolved in of a aqueous solution of ammonium sulfate. Calculate the final molarity of acetate anion in the solution.

Which of the following actions will not increase the rate at which a solid dissolves in a liquid? A. increasing the surface area of a solid B. stirring the solid and the liquid C. increasing the amount of the solid D.

Does the amount of heat absorbed as 1 kg of saturated liquid water boils at 100°C have to be equal to the amount of heat released as 1 kg of saturated water vapor condenses at 100°C?

F. Protection of the body from infectious organisms is accomplished by which of these tissues? a) bone; b) muscle; c) nerve; d) blood

A compound that is composed of molybdenum (Mo) and oxygen (O) was produced in a lab by heating molybdenum over a Bunsen burner. The following data was collected: Mass of crucible: 38.26 g Mass of crucible and molybdenum: 39.

Which of the following elements has electrons in the 3d sublevel?