What type of reaction is: CH4 (g) + 2 O2 (g) –> 2 H2O (g) + 218 kcal

When solutions of KCl and Pb(NO3)2 are mixed, a precipitate forms. Which of the following is the net ionic equation for the reaction that occurs?

The temperature of a 350. ml sample of gas increases from 27˚C to 227˚C.  What is the final volume of the gas sample if the pressure and amount of gas remain constant?

What is the mass of neon that exerts a pressure of 720 mmHg with a temperature of -15.0˚C, when the volume of the container is 760 ml

When 85.0 g of CH4 are mixed with 160.g of O2, the limiting reactant is CH4 (g) + 2 O2 (g) –> CO2 (g) + 2 H2O (g)

Given the following equation, what is the correct form of the conversion factor needed to convert moles of O2 reacted to the number of moles of Fe2O3 produced? 4 Fe(s) + 3 O2 (g) –> 2 Fe2O3 (s)

What coefficient placed in front of O2 is needed to complete balancing of the following equation? C5H8 (l) + ? O2 (g) –> 5 CO2(g) + 4 H2O (g)

What volume of 80% NaOH is required to make 50 ml of 6% NaOH?

How many kcal are produced when 32.0 CH4 g reacts in the reaction shown below? CH4 (g) + 2 O2 (g) –> 2 H2O (g) + 218 kcal

Consider a neutral atom with 30 protons and 34 neutrons. The mass number for this atom is: