4.) an element cannot be decomposed by a chemical change, it is a pure substance and no other materials compose it.
You could use a scale to measure the mass as well as a cup to hold the water. If you were comparing the two, you should also probably use a graduated cylinder to get the same amount of each type of water.
Hope this helped ^_^
Answer:
solute is that we disolve in solvent
solvent is in which we dissolve solute
D. As more electrons are added to an element, the number of electron orbitals being filled increases
We are given the chemical reaction and the amount of reactant used for the process. We use these data together to obtain what is asked. We do as as follows:
0.882 mol H2O2 ( 1 mol O2 / 2 mol H2O2 ) = 0.441 mol O2 produced
Hope this answers the question.
