A student sees a change in mass in the lab when mixing two chemicals what is a possible explanation?

Aside from carbon and hydrogen, which are always present in organic molecules, what are some other substances they may contain?

The density of SO2 gas in a container at room temperature 25.0 c is 2.51 g/L Determine the pressure in this flask

Describe the alternative energy source that you chose. Where is that energy produced? How is that energy produced? (be specific) What are the advantages and disadvantages of this type of energy?

What is the kb of carbonate given the ka of carbonic acid is 4.7x10-11?

Ammonia gas occupies a volume of 450 mL at a pressure of 90 kPa. What volume will it occupy at standard pressure?

Which elements are present in sugars?

How does Q compare to Keg? O Q> Keq O Q< Kea OQ = Keg

What is the mass (in grams) of 9.09x10^24 molecules of methanol (CH3OH) ? AND How many moles of N are in 0.183g of N2O?

What are the basic building blocks of matter? A) molecules B) atoms C) electrons D) compounds

How does an atom with too few neutrons relative to protons undergo radioactive decay? * by converting proton to a neutron by converting a neutron to a proton by emitting an alpha particle