Natural diamonds are made very deep within earth's surface where high temperatures and pressure exist naturally, thus making them much more difficult to obtain, and making them a more expensive option that Swarovski Crystal.
Correct answer is C
Na2O + H2O ----> 2 NaOH
:-) ;-)
True
Explanation An atom's valence electrons are located in the atom's innermost energy level
true.
Answer:
B. the products have a smaller number of available energy microstates than the reactants.
Answer:
the answer would be C adding a chemical catalyst
Explanation: