In what form do elements such as hydrogen, nitrogen, and oxygen normally occur?

What was the effect on the Earth's orbital path when the Suns mass was doubled and why

Which radioisotope is used as a tracer in nuclear scanning

What causes clouds to form on the upwind side of mountain ranges

The main active components of bleach and many other household cleaners are salts. neutral. acids. bases.

What is a type of air mass that forms over oceans?

A sample of argon gas is at a pressure of 1.725x10^4 kPa and a temperature of 24°C in a rigid 20 L tank. How many moles of argon does this tank contain? (show your work)

summarize what you read on the two articles by identifying the advantages and disadvantages of using plastics

What happens chemically when quick lime is added to water?

What was the crop that led to the success of Jamestown? A) cotton B) sugar cane C) tobacco D) indigo

The currents of the Earth's oceans are caused by A. marine organisms and volcanic eruptions. B. disturbances by submarines and large ships. C. waves and earthquakes along tectonic plate boundaries. D.