How many grams of Cl2 will be produced along with 250.0 kJ of heat in the following reaction? PCl5 (g) + 87.9 kJ PCl3 (g) + Cl2 (g)

You are running a rather large scale reaction where you prepare the grignard reagent phenylmagnesium bromide by reacting 210.14 grams of magnesium with 772 ml of bromobenzene.

Thermal energy only depends on the temperature of an object. true or false?

What happens to the air particles when air expands?

Calculate the molarity of a solution made by putting 55.8 g of nano3 into a beaker and diluting to 2.50 l.

How many neutrons does element X have if its atomic number is 31 and its mass number is 80?

Radiocarbon dating can be used to determine the age of A a sample less than a million years old B a sample less than 100,000 years old C a sample less than 50,000 years old - D a sample less than five million years old

How many electrons in an atom can have each of the following quantum number or sublevel designations? (a) 4p (b) n = 3, l = 1, m1 = + 1 (c) n = 5, l = 3

Could the two aqueous solutions be identified through a visual inspection? Explain.

The reaction, C2H6) (l) + 3) 2 (g) produces 2CO2 (g) + 3H2) (g), is the combustion of ethanol. What occurs as the reaction proceeds.

The Concentration of C6H12O6 May be represented as?