What is burning in chemistry.

The pathway by which carbon is transferred from living organisms to the atmosphere is called:

Calculate the molar mass of NH4NO3.

The standard for the meter is kept in France True or false

How many kilograms are in 6.983 moles of baking soda (NaCHO3) ?

A scientific law is a. a universally accepted conclusion based on testing b. always changing as a new evidence is presented c. based on new evolving theories d. often debated in the scientific community e. one step toward forming a theory

A scientist discovers a new type of polymer. What must be true about this polymer? A. It contains carbon atoms arranged in a ring structure. B. It has double bonds between all the carbon atoms. C. It contains molecules of many different types. D.

A line in the lyman series of hydrogen has a wavelength of 122 nm. from what state did the electron originate?

What are the products of photosynthesis? A. Glucose and oxygen B. Oxygen, solar energy, and glucose C. Carbon dioxide, water, and solar energy D. Hydrogen, oxygen, and carbon

A sample of a substance that has a density of 0.824 g/mL has a mass of 0.421 g. Calculate the volume of the sample.

The tyndall effect is used to detect A: suspensions B:liquid solitions C:tyndalls D:colloida