For the unbalanced equation: Mg (s) + O₂ (g) ➞ MgO (s) if 4.30 g of magnesium reacts with 33 g of oxygen (O₂), how many moles of magnesium oxide will be produced? * 4 points
0.259 mol magnesium oxide
0.18 mol magnesium oxide
0.52 mol magnesium oxide
0.21 mol magnesium oxide

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.