Explain, in your own words, why different elements produce different colors of light when heated.

1. Sara tells Michael she is 160 centimeters tall, while Michael says he is 60 inches tall. If there are 2.54 centimeters in an inch, who is taller

The Gay-Lussac law of gases describes the relationship between

Why is evaporation called a surface phenomenon?

Does polonium lend or borrow electrons?

You spin the spinner shown below once. The spinner has 4 equal sectors colored pink, purple, blue, and green. What is P (blue)

Show that the speed of an electron in the nth bohr orbit of hydrogen is αc/n, where α is the fine structure constant. what would be the speed in a hydrogen-like atom with a nuclear charge of ze?

Most modern forms of transportation are powered by fossil fuels. Carbon dioxide, methane, carbon monoxide, and other gases are released into the atmosphere during the production and combustion of these fuels.

Does the reaction of a burning candle give off or absorb heat

1. Describe the difference between valence and core electrons.

How are deltas and rivers similar?