What is the average atomic mass when the isotopes are: 20% 112In, 50% 114In, 25% 116In and 5% 117In?

In a floral arrangement, the focal area is often

Write a net ionic equation to show that hydrofluoric acid, behaves as an acid in water.

For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, a + b → ab. single-displacement double-displacement synthesis decomposition