b) i) Sketch the shape of one sigma (o) and one pi (π) bone ii) Identify the number of sigma and pi bonds in HCN iii) State the hybridization of the carbon atom in HCN

How do I determine and write out products of this reaction? Also is this a decomposition reaction? NaHCO3 (s) →

9:17 Question 14.f of 40 In welding, the temperature of the flame produced by the combustion of acetylene and oxygen varies based on the balance of the two gases in the reaction. The heat is used to melt metal so that pieces of metal can be joined together. ..lLTE An oxidizing flame (excess oxygen) is used to cut through metal. The temperature of an oxidizing flame is typically around 6692 °F. What is this temperature in K? Report your answer to four significant figures. K 1 4 7 +/- Tap here or pull up for additional resources 2 3 5 6 8 9 O Submit X x 100

Question 12 According to the first law of thermodynamics: (a) the energy of the universe is constant (b) A E = q + w (c) internal energy is a state function (d) energy is conserved during any chemical reaction (e) both (a) and (d) are correct (a) O b) toi

A bicyclist is stopped at the entrance to a valley, as sketched below: B D Where would the bicyclist have the highest potential energy? Where would the bicyclist have the lowest potential energy? Where would the bicyclist have the highest kinetic energy? Where would the bicyclist have the highest speed? Would the bicyclist's kinetic energy be higher at C or B? Would the bicyclist's potential energy be higher at C or B? Would the bicyclist's total energy be higher at C or B? Suppose the bicyclist lets off the brakes and coasts down into the valley without pedaling. Even if there is no friction or air resistance to slow her down, what is the farthest point the bicyclist could reach without pedaling? E (choose one) ✓ (choose one) (choose one) ✓ (choose one) ✓ (choose one) (choose one) (choose one) X (choose one) Ś ?

Two types of renewable energy are photovoltaics (solar cells) and wind turbines.     Energy Type 1 nuclear 2 gravitational 3 thermal 4 electric 5 solar 6 chemical 7 kinetic The energy transformations in a wind turbine, from the sun’s energy to producing electricity are, in order a, b, c.The values of a, b, and c, respectively, are       2. The energy transformations in a solar cell, from the sun’s energy to producing electricity are, in order a, b.The values of a and b, respectively, are

A model for the compound 2,2- dimethylbutane is shown. Write a balanced chemical equation that shows the formation of 2,2-dimethylbutane from the elements carbon (C) and hydrogen). (Use the smallest integer coefficients possible and do not include states.) A model for the compound 2,2-dimethylbutane is shown Write a balanced chemical equation that shows the formation of 2,2-dimethylbutane from the elements carbon (C) and hydrogen (H₂) (Use the smallest integer coefficients possible ond do not include states.)