The states in which water occurs on earth are

Luis set a glass of ice water out side is the sunshine. when he looked at the glass 10 minutes later, the contents had changed. what kind of change happened to the ice water? A. evaperation B. conduction C. chemical change d. sudden change

Define element and compound. explain the difference between an element and a compound.

How does an object become negatively charged? It gains electrons. It loses electrons. It gains protons. It loses protons.

How is homogeneous and heterogeneous alike?

The Dalton model of the atom predicted which of the following? A. Electrons are embedded in a sphere. B. Atoms can be broken down into smaller components. C. Atoms have a nucleus. D. All matter is made of atoms.

Step two of the procedure states: "Using sterile technique, place a loopful of inoculum from the M. luteus culture in the drop of nigrosin and mix." Which of the procedures qualifies as sterile technique?

If 4.34 moles of potassium react with excess water, how many moles of hydrogen gas would be produced at STP

What is the common name of sodium bicarbonate

The mass of one formula unit of SrCl2 is 158.52 amu. Based on this fact, what conclusion can you draw? A. A mole of SrCl2 particles has a mass of 158.52 g. B. 1 g of SrCl2 contains an average of 158.52 particles. C.

A blank is a special kind of mixture in which one substance is uniformly mixed into another