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Questions (5)
which following trinomial is a perfect square?
A. x^2 + 2x - 3 B. x^2 - 4x - 4 C. x^2 + x + 1/4 D. x^2 - x -56 question B & C
1 answer
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OOBI
1 answer
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When 1 gram of sex hormone (contains C, H, and O) was burned in a combustion analysis, 1.5 grams of CO2 and 0.405 grams of H2O
3 answers
835 views
The relative price of personal computers has dropped drastically over time. would you explain this falling price in terms of
1 answer
974 views
UrGENT, PLS ANSWER MY QUESTION IMMEDIATELY!!!
For each pair of commodities,state which do you think is more elastic and give your
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Answers (1)
okay,this is what i have so far: so is the chemical formula: O2 + CxHyOz --> CO2 + H2O ? CO2: 0.41 g of C 1.09 g of O2 H2O: 0.045 g of H2 0.36 g of O Empirical Formula: CH2O -> n = 0.033 mol C: 0.033 mol x 12g/mol = 0.396 g of C H2: 0.033 mol x 2g/mol =