Which equation describes a reduction? Mg(s) —> Mg2+ (aq) + 2e-
2CI + 2e-201-
Na(s) —> Na+ (aq) + e-
Al(s) —>A13+ (aq) + 3e

To save time, you can approximate the initial mass of the solid to the nearest ±1 g. for example, if you are asked to add 14.3 g of copper, add between 13 g and 15 g. which of the following sets include two samples with an equal density? which all that apply below 15.4 g gold and 18.7 g silver 15.2 g copper and 50.0 g copper 20.2 g silver and 20.2 g copper 11.2 g gold and 14.9 g gold

Which of these best describes an ionic bond?

Express the following number in scientific notation. 0.026890 =