Li,SO, + KCI LicI + K,SO4 REACTANTS PRODUCTS Element Symbol How Many? Element Symbol How Many?

Calculate the mass, in grams, of 322 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g). 1 4. 8. +/- 2.

2NaClO, --> 2NaCI + 30, Reactants combine into a large one Reactant breaks apart into smaller molecules A pure element swaps places with an element in a compound elements from two different compounds switch place a hydrocarbon reacts with oxygen to form carbon dioxide and water

3. Table salt (NaCl) is produced when sodium element reacts with chlorine gas. a) Write the balance chemical reaction. 2 Na +Cl2 2nacI b) Determine the mass of NaCl produced when 12.8 g of sodium reacts. c) Determine the mass of NaCl produced with 10.2 g of chlorine gas reacts. d) Which amount, 12.8 g of sodium or 10.2 g of chlorine gas, provides a better yield of NaCI?

Balance the following equation.   ___N2H4(g) + ___H2O2(g) → ___N2(g) + ___H2O(g)

Use this information to find the molecular formula of x

Use 1 decimal point for all atomic masses. 12.3 g of NCl3(g) are reacted with 0.605 g of H2(g) by the following reaction   NCl3(g) + 3H2(g) --> NH3(g) + 3HCl(g) What is the limiting reagent? NCl3(g) H2(g)     Based on the limiting reagent, what should the yield of NH3(g) be? g

Consider the reaction. heat 2 Al(s) + Fe,O,(s) → Al, O, (s) + 2 Fe(1) If 23.1 kg Al reacts with an excess of Fe, O,, how many kilograms of Al, O, will be produced? mass of Al, 0, produced: kg

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A mixture of nitrogen and hydrogen reacts to completion forming ammonia. N, + 3 H, → 2 NH, When the reaction is complete there are 3.52 g of hydrogen remaining. All of the nitrogen reacts and 95.7 g of NH, is formed. Calculate the mass of hydrogen in the initial reaction mixture.