The chemical formula of caffeine is C8H10N4O2. Determine the percent composition of nitrogen in the compound. show work

7. How do you think the melting of sea Ice and snow would affect the amount of energy reflected or absorbed?

When a chemical reaction occurs, atoms rearrange to form new compounds, but no new atoms are created nor are any destroyed. this concept is called conservation of mass.

Nitric oxide gas reacts with hydrogen gas to form ammonia gas and water vapor.

Which process can increase the rate of greenhouse gas emissions into the atmosphere in response to a decrease in albedo? A. Ice-albedo feedback B. Precession of the ecliptic C. Volcanic activity D. Continental drift

How are inner and outer planets different?

How many atomic mass units are equal to 1.672*10-24 g of protons?

What is the name of the compound Sr3N2?

The water softener discussed here relies on precipitation softening also known as ion exchange. based o hte reactants used, what ions would remain in the softened water thaat would be consumed buy the homeowners

What would be the best technique to separate a soluble solid from a solution, like separating salt from a mixture of salt water?

What are metalloids used for