What are complex compounds produced by living organisms called

Describe how fuel oil can be changed into gasoline?

The protein keratin is composed of two helical strands that wrap around each other in what is called a coiled coil. The two strands remain in contact with each other over the entire length of the protein via hydrophobic interactions.

A microwave oven operates at 2.70 GHz. What is the wavelength of the radiation produced by this appliance? express answer in nanometers

A stranger at a restaurant says the salt you're sprinkling on your food is made up of sodium and chloride. Therefore, you are putting an inorganic compound on your food.

If your front lawn is 15.0 feet wide and 20.0 feet long, and each square foot of lawn accumulates 1150 new snow flakes every minute, how much snow (in kilograms) accumulates on your lawn per hour? Assume an average snow flake has a mass of 2.20 mg.

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

Use Dimensional Analysis: convert: 0.36km/sec to m/min 2.6L to cm^3 9cm to mm 7.6mm^3 to cm^3

Something occurs when a liquid changes to a gas below its surface as well as on the surface

What happens to the reaction c2h6 + 137 kj when the temperature of the reaction is increased?

If a car is going at a speed of 36 km/hr. what is the speed in m/s