Why is a nonluminous flame used to heat the crucible strongly for about 5 minutes at the beginning of the procedure for this experiment. why shouldn't a luminous flame be used instead?

In saturated organic compounds, all the bonds between carbon atoms are called?

Type the letter that represents the correct location for each particle type below.

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.