What is the energy transformation in the following:

-Tv

-Electric Blanket

-Lighter

-Leaves photo synthesis

-Nerve impulses

-Remote controller

-Bicycle generator

-Stereo speaker

A polymer P is made up of two monodisperse fractions; fraction A with molecular weight of 1000 g/mole and fraction B with a molecular weight of 100,000 g/mole. The batch contains an equal mole fraction of each fraction.

List two products derived from ethylene.

What type of compound is clear apple juice

In the equation c2h4 + 3o2 = ? co2 + 2h2o, how many co2 molecules are needed to balance the equation?

At which temperature would a reaction with H = - 92 kJ/mol, S = - 0.199 kJ / (mol-K) be spontaneous?

2. Describe in a step by step manner how you determined the identity of the two unknowns. Discuss both what you determined the unknowns to be and the method that you used to find them.

Number of hydrogen atoms in NaC2HO4

Calculate the pH for an acid that has a [H+] of 5.8 x10^-11 M.

Complete the lewis dot structure for h2co (in which both h atoms are bonded to c).

Do substances have to be cold to freeze?