Determine the mechanical energy of this object:

a 1kg ball sits on a 10 meter high cliff

a. 980j

b. the ball isn't moving. so the mechanical energy is zero

c. 98j

d. 10j

How is temperature related to physical change of a substance?

My Everest is 29035 feet above sea level Mr. Kilimanjaro is 9700 feet lower how high is Mr. Kilimanjaro

What is true in the saturated solution? A. no more solute can be dissolved B. no more solvent can be dissolved C. no more solution can be made D. The concentration cannot be decreased

In a paper chromatography chamber, which example could be the stationary phase? air plastic plate paper

When hydrogen is burned in oxygen to form water, the composition of water formed does not depend on the amount of oxygen reacted. interpret this in terms of the law of definite proportion?

A liquid is heated and a solid forms at the bottom of the beaker. Is this a physical or chemical change?

How to predict the formula of an ionic compound based on the charges of the ions?

Which of the following kingdoms in one-celled organisms

Objectives Quiz: A View of Earth 1:Introduction to Earth Science Which of the following describes groundwater? 10

You determine the volume of your plastic bag (simulated human stomach) is 1.05 L. How many grams of NaHCO3 (s) are required to fill this container given a 70.