What is the difference between a chemical process and and physical process

How much energy is required to decompose 612 g of pcl3, according to the reaction below? the molar mass of pcl3 is 137.32 g/mol and may be useful. 4 pcl3 (g) ? p4 (s) + 6 cl2 (g) ? h°rxn = + 1207 kj a. 1.85 * 103 kj b. 3.46 * 103 kj c. 5.

Draw the product formed when (ch3) 2choh is treated with pocl3 and pyridine

Which of the following elements possesses the fewest valence electrons? bismuth boron barium bromine

A 12.8 g sample of ethanol (C2H5OH) is burned in a calorimeter with a heat capacity of 5.65 kJ/°C. Assume the heat from the sample is negligible compared to the calorimeter.

The surface of water can act like a sort of skin due to a property of liquids called

What type of chemical reaction is C6H6 + CI2 = C6H5CI + HCI

True or False : During neap tides, low tides are highest because the Sun, Earth, and the Moon form a right angle.

Determine the number of protons, electrons, and neutrons for cobalt with a charge of + 6 and a mass of 61.

Which of the following is false about a spontaneous chemical reaction that generates electricity:a. Oxidation and reduction half-reactions occur at electrodes in electrochemical cells. b.

What change would you expect on the rate of theSN2 reaction of 1-iodo-2-methylbutane withcyanide ion if the nucleophile concentration isunchanged and the alkyl halide concentration isdoubled?