Which best describes a molecule? a unit made of different kinds of elements a unit made of only one kind of element a unit made of two or more atoms a unit made of a single atom

could be the slogan of fascist governments

Which of these is a typical property of a substance that is composed of atoms that are held together by covalent bonds? a. It conducts electricity when in solid form. b. It conducts electricity when in molten form. c.

A sample of gas has a pressure of 3.00 atm at 25 degrees Celsius. What would the pressure be at 52 degrees Celsius if the volume stays constant? Which gas law does this problem represent?

What force can move the oceans

The Earth, the Sun, and the rest of the solar system are almost unimaginably old when viewed on a human time scale.

Do pure substances have the same chemical and physical properties

How is matter conserved in a chemical reaction

Define Percent transmittance

Express (3 x 104) (4 x 1023) in scientific notation

The theoretical yield of aspirin in a reaction is 721 g. What is the percent yield if 461 g is produced?