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balanced chemical equation

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1. If 1 mole of Al4C3 has a mass of 144g and carbon has a mass of 12g, what is the atomic mass of aluminum?

2. Hydrogen cyanide (boiling temp 26 degrees)
Write a balanced chemical equation using the lowest possible whole number coefficients, including the state of each compound. Reaction occurs at a temperature above 100 degrees.

CH4 + NH3+ O2 ----> HCN + H2O

3. Rearrange the following equation to make x the subject:
a). r=sx2 divided by 2t
b). 6y=9 - 3x.

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Solution Summary

The solution provides step-by-step details that finds the balanced chemical equation (see attachment).