An ______ reaction results when the energy required to break bonds in the reacta

Question

An ______ reaction results when the energy required to break bonds in the reactants is greater than the energy released by the formation of products. How many non-polar bonds does CH_3OH contain? What is the difference between a calcium atom and a calcium ion? What is the formal charge on sulfur in the best Lewis structure for the SCN^- (thiocyanate) ion? What is the formal charge on the oxygen atom in N_2O (the atomic order is N-N-O)? A chemist possesses KCl, PH_3, GeCl_4, H_2S, and CsF. Which of these compounds do not contain a covalent bond? What is a sigma bond? What is a pi bond? What are their basic differences? One electron is removed from O_2 and one from N_2. The bonding in O_2 is strengthened while the bonding in N_2 is weakened. 1) Explain the findings using a MO diagram. 2) Predict what happens if an electron is removed from NO.

Explanation / Answer

Q5.

Energy inlet > Energy outlet

this is ENDOTHERMIC, it requires energy from outside, i.e. surroundings

Q6.

nonpolar bonds:

CH3 --> 3 bonds

C-O --> polar, so 0

O-H --> polar, so 0

Total count --> 3

Q7.

Calcium atom has 20 protons + 20 electrons

Calcium ion has 20 protons and 18 electrons (Ca2+)

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