Which statement best describes elements?

A. They are the smallest particles of any material.

B. They are composed of only one type of atom.

C. They are the most expensive materials on earth.

D. They break down easily

Why LDL called "bad" cholesterol?

Martha Stewart does not do her own ironing because she: Select one: a. is not very good at ironing. b. has an absolute advantage in ironing. c. has a comparative advantage in ironing. d. has a comparative advantage in something else.

How could you seperate a mixture of sand and sugar?

A small helium tank measures about two feet (60 cm) high. Yet it can fill over 50 balloons! How can such a small tank contain enough helium to fill so many balloons?

For a redox reaction to occur, there must be a transfer of * A. protons B. neutrons C. electrons D. ions

What will happen if you mix baking soda, soda and orange juce

What is the oxidation number of S in Li2SO4?

Which of the following is not a skill scientist use to learn about the world A. Predicting B. Observing C. Inferring D. Scientist use all of the above skills

When you overshoot during titration what is the result

The transmission of heat requiring the movement of a liquid or a gas is A. transduction. B. convection. C. radiation. D. conduction