Hemoglobin is a molecule found in blood used to transport oxygen throughout the body. What type of biological compound is this?

1. Explain why Brownian motion provides evidence for the existence of atoms and molecules

A train travels 55 km south along a straight track in 34 minutes. What is the train's average velocity in kilometers per hour?

A passenger sitting in the rear of a bus claims that he was injured when the driver slammed on the brakes, causing a suitcase to come flying toward the passenger form the front of the bus.

Which food tastes acidic

An atom gains an additional electron. What is the overall charge of the ion that is formed?

Which of the following describes subatomic particles? carbon and nitrogen solids, liquids, gases larger than atoms protons, neutrons, and electrons

What is the difference between speed and velocity? A) velocity describes speed with direction. B) there is no difference. C) Velocity describes direction with position. D) Velocity is used in space, while speed is used on earth.

How do you calculate resistance with coulombs, time and J's?

Difference between specific heat capacity and latent heat?

What are artificial magnets and natural magnets? examples