In the bohr model of the atom, the ground-state electron in hydrogen has an orbital speed of 2190 km/s. the mass of an electron is 9.11*10-31kg. what is its kinetic energy?

What is an example of a natural light prism?

Does the earth have a nucleus

How old is Newton's first law? (i didn't see science as a subject)

Crystals are characterized by particular patterns that repeat in how many dimensions? A. three dimensions B. one dimension only C. two dimensions only

Describe the steps to balancing a chemical equation.

What is the molarity of a solution with 1.17 moles of Ca (OH) 2 disolved in 0.2 liters of water? A. 1.17 M B. 0.2 M C. 0.17 M D. 5.85 M

What happens to acetone molecules when you add heat to a beaker of liquid acetone?

An effluent discharge with a flow of 1.5 m3/s and an ammonium-N concentration of 2 mg/L is released to a river with a flow of 12 m3/s and an ammonium-N concentration of 0.015 mg/L.

If you were to pour 4 different liquids into a glass and the liquids separated into 4 layers, which liquid would have the highest density?

As magma rises to the surface what happens to the gases in it