What is the correct way to balance this equation? H2 + O2→H2O

H2 + 2O2→H2O

H2 + O→H2O

2H2 + O2→2H2O

2H2 + O2→H2O

The energy released by a nuclear reaction results primarily from the

Electromagnetic radiation with a frequency of 8.6 ' 1014 hz incident on an unknown metal surface causes ejection of photoelectrons with kinetic energies of 1.3 ' 10-19 j. what is the unknown metal?

A positive charge of 6.0 * 10-4 C is in an electric field that exerts a force of 4.5 * 10-4 N on it. What is the strength of the electric field?

How do you know if an object is moving?

Which of the following is speed? a. the time at which a bicycle slows down b. the length of a racetrack c. the path of an elevator d. the rate at which a person slides down a rope

What does the slope of a line of best fit represent

A bowling ball is pushed with a force of 22.0N and accerlates at 5.5 m/s square. What is the mass of the bowling ball A - 4.0 kg B-0.25 kg C-25 kg D-4.00 kg

How to eat butter. I want to know how you all eat the butter.

What is the transfer of heat through a solid as a result of molecular action called? radiation convection conduction magnetism?

Explain the process of synaptic transmission, beginning with the neurotransmitters at the axon terminal of the presynaptic cell and ending with the impulse being sent down the postsynaptic cell.