How many moles are in 36 g of Beryllium (Be) ?

a. 0.25 mol

b. 4.0 mol

c. 45.0 mol

d. 320 mol

If 6.96 mol of C 5 H 12 reacts with excess O 2, how many moles of CO 2 will be produced by the following combustion reaction? C 5 H 12 + 8 O 2 ⟶ 6 H 2 O + 5 CO 2 moles of CO 2 : mol

Thomson's experiments were significant in that they questioned A. whether matter is made up of atoms. B. whether the atom has a positive or negative charge. C. whether atoms will form compounds with other atoms. D.

wo beakers are filled with different liquids. A steel ball is dropped simultaneously into each beaker: Drag the slider to see what happens. The stopwatch shows the time since the balls were dropped.

How many molecules of water are needed to completely break apart a polymer that is 11 monomers long?

A pan containing 40 grams of water was allowed to cool from a temperature of 91.0C. If the amount of heat repressed is 1,300 joules what is the approximate final temperature of the water. 74 C 78C 81 C 83C

What is the significance of the symbol of an element?

Consider the half reactions below for a chemical reaction. 2 Equations: First: upper M g right arrow upper M g superscript 2 plus (a q) plus 2 e superscript minus.

If you put some sodium chloride (table salt) into a glass of water, what will happen?

Why don't the inert gases easily react with other elements?

What is the name of the following compound Pb (CH3COO) 4