kimball
How many kilojoules of heat must be transferred to a 480-g aluminum pizza pan to raise its temperature from 22 degrees celsius to 234 degrees celsius?
Chemistry
we burn 12.50L of ammonia in 20.00L of oxygen at 500 degrees celsius. What volume of nitric oxide, NO, gas can form? what volume of steam, H2O (g) is formed? Assume that all gases are at the same temperature and pressure, and that the limiting reactant is used up 4NH3(g) + 5O2...
Chemitry
calculate the volume of 1.07M phosphoric acid solution necessary to react with 22.9 ml of 0.150M Mg(OH) 2H3PO4 +3Mg(OH)2 ==> Mg(PO4)2 + 6H20
Chemistry
calculate the volume of 1.07M phosphoric acid solution necessary to react with 22.9 ml of 0.150M Mg(OH)
Chemistry
what happens to a battery when it is "recharged"
Chemistry
4, Assign oxidation states for the two elements in the compound OF2. Explain the rules that you use. 5. For each of the following oxidation-reduction reactions of metals and nonmetals, identify the element that is oxidized and the element that is being reduced. a) 4Fe(s) + 3O...
Chemistry
Assign oxidation states to all atoms in each of the following. explain the order in which you determine the oxidation states for each element if applicable. a)O2 b)HSO4- c)Na2HPO4 d)CrCl3
math
a bag of marbles contains 5 green 4 red and 6 yellow what is la probability of drawing 2 yellow with replacement.
Chemistry
• Describe the properties of acids and bases and explain the concept of pH • How will you measure the pH of the soil in your garden • How will pH affect materials and equipment you might use in gardening. • 3 vegetables and 3 flowers that would work well to...
Chemistry
At the equivalence point in a titration you know the volume (x mL) of a standard solution of acid (2.5 M) that has been added to a known volume base (y mL). show how you can determine the concentration of the base.? Explain
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