A balloon can be inflated with 4.23 Liters of O2gas at STP. How much will the balloon weigh in grams?

Convert .347 kilometers to miles show your work

The characteristics of two different types of reactions are shown below: reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of an element. which statement is true about the atoms of the elements that participate in the two reactions? their identity changes in both reaction a and reaction b. their identity changes in reaction a but not in reaction b. their identity changes in reaction b but not in reaction a. their identity remains the same in both reaction a and reaction b.

What conclusion can you draw from this experiment about the components of the black ink?