Write two resonance structures for the formate ion, HCO2‒.  (The hydrogen and both oxygen atoms are bonded to the carbon.) What do these structures predict about the carbon-oxygen bond lengths of the formate ion?  What do these structures predict about the electrical charge on the oxygen atoms?

Decide whether these proposed Lewis structures are reasonable. proposed Lewis structure a=ö] [[:N_N=N]] Yes. Is the proposed Lewis structure reasonable? No, it has the wrong number of valence electrons. The correct number is: No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are: Yes. No, it has the wrong number of valence electrons. The correct number is: No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* ☐ Yes. No, it has the wrong number of valence electrons. The correct number is: No, it has the right number of valence electrons but doesn't satisfy the octet rule. The symbols of the problem atoms are:* *If two or more atoms of the same element don't satisfy the octet rule, just enter the chemical symbol as many times as necessary. For example, if two oxygen atoms don't satisfy the octet rule, enter "0,0".

What is the Lewis structure of the polyatomic anion IF4−? (Assign lone pairs, radical electrons, and atomic charges where appropriate.)

During chemical reactions the bonds between atoms break and new bonds form. Energy must be absorbed to break a bond, so breaking bonds is endothermic. Making new bonds is exothermic because energy is released. If the reaction equation is: 2H (g) -> H2 (g) Is this reaction exothermic or endothermic? Use ideas about bonds to explain why.

How many covalent bonds and how many ionic bonds are there in the molecular structures below? Please note that a pair of cation (+) and anion (-) form ONE ionic bond, and that a double bond counts for TWO covalent bonds.

carbon tetrachloride was formerly used in fire extinguishers for electrical fires.it is no longer used for this purpose because of the formation of the toxic gas phosgene,CL2CO.wRITE THE LEWIS STRUCTURES for the methane and ethane molecules.

Below is the Lewis structure of the hydrazine (N₂H₂) molecule. H:N::N:H Count the number of bonding pairs and the number of lone pairs around the left hydrogen atom in this molecule. bonding pairs: lone pairs: X

Give detailed Solution with explanation needed

Which of these compounds would be expected to have the LARGEST lattice energy? Why? Li2O, Rb2O, or Na2O .

How many equivalent resonance structures that follow the octet rule can be drawn for O3? One Two Three O Four This molecule has no resonance structures.