How many kilojoules are equivalent to 959.6 calories

When 0.105 mol propane, c3h8 is burned in an excess of oxygen, how many moles of oxygen are consumed? the products are carbon dioxide and water. you have to properly balance the equation before you can answer this question?

Tooth enamel is ca5 (po4) 3 (oh). calculate the percent composition of the elements present.

What does heliocentric mean

What happens when you try to mix oil and water? What type of mixture is it? Explain

How many grams of dry nh4cl need to be added to 2.50 l of a 0.800 m solution of ammonia, nh3, to prepare a buffer solution that has a ph of 8.53? kb for ammonia is 1.8*10-5. express your answer with the appropriate units?

Two liquids that are soluble in each other in any proportion are said to be what?

Which of the following is not a chemical reaction a) gas formation b) solid formation c) energy change d) state change

Which equation is derived from the combined gas law

What is the ph of a solution with [h3o+] = 1 * 10-9 m?

Which base has the lowest ionization constant (Kb) ? A) HCl B) NaOH C) bleach D) blood