What is three remaining elements in caffeine

What is the mass % of iron in Fe (CH3CO2) 2 (Fe=iron=55.85)

What would the molecular formula be if lithium and sulfur reacted to form a neutral compound? A. LiS B. LiS2 C. Li2S2 D. Li2S

How can you tell whether a fat contains primarily saturated or unsaturated fatty acids?

What is the difference between a longitudinal wave and a transverse wave?

Why does magnesium nitrate not react with Magnesium sulfate?

A penny has a mass of 2.50g and the moon has a mass of 7.35 X 10^22 Use this information to answer the questions below. Be sure your answers have the correct number of significant digits.

If a car tire has a diameter of 3232 inches, what is the approximate circumference of the tire?

9) Bettina spoke into a microphone during the school play to increase the sound of her voice so the audience could hear her speak.

Explain what happens to the average kinetic energy thermal energy and temperature of a substance when the particles in the substance slows down

Which of the following could be used to describe the rate of a reaction? change in time/change in concentration change in mass/change in concentration change in concentration/change in time change in concentration/change in mass