Solve the enthalpy of formation NH3 (g) - 46.11

If the absorbance of the 10μM solution is 0.24, what should be the absorbance of the 50μM? Write answer to two decimal places.

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Which of the following reactions is not a chemical reaction? melting an ice cube tarnishing of a silver spoon digestion of food the browning of a freshly sliced apple

The compound, A2Z3, is a made-up compound. If this is an ionic compound, name two elements that A & Z may be?

Which gas sample would likely not act like an ideal gas? Choose one of the following, 1. A sample of oxgen gas at low pressure 2. A sample of oxygen gas at high temperature 3. A sample of argon gas at high pressure 4.

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Determine the molecular geometry about each interior nitrogen atom of n2h4.

Out of the following, which element has properties of both metal and nonmetal? A. Ce B. Be C. Te D. Ne

During the synthesis of a triglyceride from its subunits, how many molecules of water are produced from dehydration synthesis?

Which symbol represents a salt? C2H2 NaCl O2 C6H12O6