When salt dissolved in water, what type of change occurs?

A) physical only

B) chemical only

C) physical and chemical

Oxygen atom gains two electrons to become an oxygen ion. What is its electric charge?

How does a scientist critique another scientist's conclusion? A. By making fun of the other scientist B. By reading secondary source C. By making up alternate conclusion D. By presenting date that contradicts those conclusions

List and describe two powerful forces of nature caused by plate tectonics

What is the molarity of a 2.0 L sodium hydroxide solution containing 10.0 grams of solute? 0.80 M 0.13 M 5.0 M 0.25 M

As a substance changes from gas to liquid, how do the particles of the substance change?

What does 54 in mn-54 represent

Valerie wants to examine the properties of a thick liquid but is finding it difficult to pour the liquid into a beaker. She needs to finish her investigation before the end of class.

What is the chemical name of baking soda

Breaking bonds requires what type of energy flow?

Why is it an advantage for the graduated cylinder to be shaped with a lip at the top