Answer:
B. using efficient light bulbs
Resonance or mesomerism is applicable to structures that cannot be formed with a single bond alone. Thus, for the structure of HCO2, there can be 2 resonance structures. In each structure, the formal charges are
C=0;
C=0
Oxygen=0
C-O=-1
H=0
HCO2-'s structure is a mixture of the two resonance structures. Hope this helps.
Answer:
NaCl or sodium chloride, is commonly known as table salt. ... Subscripts show the ratio of atoms of different elements in the compound. Since there are four hydrogen atoms in the molecule, the subscript 4 follows the symbol for hydrogen.
Explanation: