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is practices (z or iz)

How many moles of O2 are needed to combine with 0.646 mol Al to give Al2O3?

The figure below represents the bulls eye target for an archer. The black dots represent where the archer’s arrows hit: How can this archer be described? a. accurate b. precise c. accurate and precise d. neither accurate nor precise

What is the net ionic equation for the reaction of H2SO3 with Ba(OH)2?

Chloroacetic acid has a relatively large equilibrium constant, so at low acid concentrations it is necessary to use the quadratic equation in order to calculate the concentrations of the aqueous species. Ka for ClCH2COOH is 1.4 ´ 10-3. For the problems th...

how can i know whether solution is acidic or not and then what type of acid?