1. When identifying minerals, scientists often look at the color of the mineral when it is in powdered form. What is this color called?

One atom of silicon can properly be combined in a compound with

Besides the problem of radioactive wastes, the overall of nuclear reactors is still debated.

What type of igneous rock contains large mineral crystals? Explain why.

1. What is light energy converted from in the bulb of a lamp? electric energy sound energy heat energy

Chemistry is a natural science that deals with?

Write a mathematical equation showing that pressure (P) divided by temperature (T) remains equal to a constant (k).

Which molecule has a structure that is most like aspirin? propene octyne benzene butane

The half-life of radioactive element krypton-91 is 10 seconds. if 16 grams of krypton-91 are initially present, how many grams are present after 10 seconds? after 50 seconds?

Which part of the electromagnetic spectrum has a shorter wavelength than ultraviolet light? television x-rays microwave infrared light

5.0 g of NaCl is dissolved in water, and the solution is brought to a final volume of 150 mL. What is the molarity of this solution?