Answer:A
Explanation: ion
an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
<span>As magnesium has atomic number 12 it's electronic configuration is 2,8,2 in the K,L,M shells.Thus as we can see it has 2 electrons in the outermost shell hence, it has 2 valence electrons.</span>
Answer:
C4H8O4
Explanation:
Let (CH20)x
C=1*12.01=12.01 (12.01, 1.01, 16.00 Avg mass of elements)
H=2*1.01=2.01
O=1*16.00=16.00
12.01 + 2.01 + 16.00 = 30.03
120.12/30,03=4
==> (CH2O)4 = C4H8O4
Many different chemicals burn and produce flames, but different chemicals have different chemical properties, and produce different amounts of energy when they burn. Those which produce more energy, will also produce hotter flames.