Based on Dalton's theory, would you expect a carbon atom to have the same mass as an oxygen atom? Explain.

What Happens to an Atom During Radioactive Decay?

How many protons are in the carbon atom?

Data from a fossil of a mammoth tooth shows that carbon-14 has been decaying in the tooth for five half-lives.

Calculate Calculate the age of the tooth.

If you allowed dry ice to stand in a bowl at room temperature for several hours, what would be left?

In metal casting, a liquid metal is poured into a container called a mold. The mold gives a shape to the metal when it cools and hardens. How does metal casting make use of the different characteristics of liquids and solids?

Why are European languages still used in several countries of southern Africa?

How do liquids with a high viscosity differ from liquids with a low viscosity?

Why does pumping more air into a basketball increase the pressure inside the ball?

Are the particles in a solid motionless? Explain your answer.

Where did Europeans build cities? What factor caused Nairobi and Kampala to grow?

Here is the balanced chemical equation for making water: 2H2 (g) + O2 (g) = 2H2O (l). a. What is the predicted yield for water based on this equation? b. What would you have to do to triple the predicted yield?

Imagine being the size of an atom. Describe how something like a red blood cell might look to you.

is it accurate to say that helium has no chemical properties