Given four chemical bonds, C―Si C=C C≡N C=N Determine if each of the statement is True or False. 1) There are three bonding pairs between C and N in a C≡N bond. 2) The C=O bond is stronger than the C=N bond because O is larger than N. 3) The order of increasing bond length is: C≡N < C=N < C=C < C―Si. 4) The only reason that the C=C bond is shorter than the C―Si bond is that a C atom is smaller than a Si atom.

Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.

Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d.the number of electrons in the pi system must satisfy the hückel 4n+2 rule e. the compound must have a neutral charge

About 70 percent of the earth's surface is water-covered, and about 96.5 percent of all earth's water is salt water. identify the watery feature on earth that is made of freshwater rather than salt water. a) bay b) glacier c) ocean d) sea it is not incomplete this is the true question