Which Chemical Equation Is Balanced?

A) 2MG + O2 - > MgO

B) Mg + O2 - > 2MgO

C) 2Mg + O2 - > 2MgO

D) 2Mg + 2O - > 2MgO

System documentation that includes the outcome of such structured diagramming techniques as data-flow and entity-relationship diagrams best defines: A. user documentation. B. application documentation. C. external documentation. D.

You will have to lift a heavy box. The force of gravity pulls it downwards with a force of 500 N. Your father applies an upward force of 220 N How much force you will have to apply to lift it up

a plastic stick attracting small pieces of brightly colored paper. If the stick has a positive charge, then the paper that sticks to it must have

Who wins a tug-of-war one who pushes harder at the ground or pulls harder at the rope

A 20 kg child is on a swing that hangs from 3.0-m-long chains. what is her maximum speed if she swings out to a 49 ∘ angle?

A British newspaper was interested in whether groups of people who differed in social standing were treated differently when they complained to organizations about poor service they had received.

During combustion, a fuel's electromagnetic energy is converted into thermal energy.

Explain why glucose is important to a cell

4. How far does a car travel in 90 seconds if it is traveling at a speed of 55 m/s?

Total energy input is 1400 and my efficiency is 80% so what is the useful energy output in jules?