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Question:

Can someone help me with balancing my chemical equtions? PLEASE!?

can someone please help me?1hydrochloric acid + aluminum oxide -gt;gt;gt; aluminum chloride + water2sodium nitrate + barium chloride -gt;gt;gt; barium nitrate + sodium chloride3tricarbon octahydride + oxygen -gt;gt;gt; carbon dioxide + dihydrogen oxide 4ammonium hydroxide + nitric acid -gt;gt;gt; ammonium nitrate + water5silver nitrate + hydrogen sulfide -gt;gt;gt; silver sulfide + nitric acid6ammonium chloride + nitric acid-gt;gt;gt; ammonium nitrate + hydrochloric acid7magnesium + dihydrogen oxide -gt;gt;gt; magnesium hydroxide + hydrogen8diphosphorous pentasulfide + oxygen -gt;gt;gt; tetraphosphorous decaoxide + slufur dioxide9lead(II)nitrate + potassium iodide -gt;gt;gt; lead(II)iodide + potassium nitrate10sodium hydroxide + phosphoric acid -gt;gt;gt; sodium dihydrogen phosphate + water11mercury(I)nitrate + iron(III)chloride -gt;gt;gt; mercury(I)chloride + iron(III)nitrate12sodium hydrogen carbonate -gt;gt;gt; sodium carbonate + carbon dioxide + water

Answer:

Start by identifying the chemical formula from each material given, then write out the equation and balance each elementFor 1, hydrochloric acid is HCl, Aluminum oxide is Al2O3 (Aluminum is always +3 charge), Aluminum chloride is AlCl3, and water is H2O, sow HCl + x Al2O3 - y AlCl3 + z H2O where w, x, y, and z are numbers as follows: 2 Aluminum atoms are on the left, so you need two on the right, so y 2: w HCl + x Al2O3 - 2 AlCl3 + z H2O To balance the chlorine atoms, you have 6 (2 x 3) on the right side, so you need 6 on the leftw6 6 HCl + x Al2O3 - 2 AlCl3 + z H2O That gives you 6 hydrogens on the left, so you need 6 on the right and so z 3: 3 HCl + x Al2O3 - 2 AlCl3 + 3 H2O Which leaves you with 3 oxygens on the right and you already have 3 on the left sox 1, or3 HCl + Al2O3 - 2 AlCl3 + 3 H2O For all the others, identify the materials first and write out the unbalanced equationsIt is easiest to balance metals first, then do carbon, oxygen, and hydrogen last since they can appear in multiple forms (like 10 for instance)Good luck - happy Chemistry!
Seems your teacher wants you to write an essay that tells about a film type, like comedy, drama, mystery, etc.

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