Magnesium has three naturally occurring isotopes: mg-24 with mass 24.3050 amu and a natural abundance of 78.99 %, mg-25 with mass 24.9858 amu and a natural abundance of 10.00 %, and mg-26 with mass 25.9826 amu and a natural abundance of 11.01 %.
calculate the atomic mass of magnesium.

Which of the following are in a chemical family a. ca, sc, k b. cu, ag, au c. so, ge, sb

The equilibrium constant kc for the reaction 2 nocl(g) → 2 no(g) + cl2(g) is 0.453 at a certain temperature. a mixture of nocl, no, and cl2 with concentrations 1.30, 1.20, and 0.600 m, respectively, was introduced into a container at this temperature. which of the following is true? 1. no apparent reaction takes place. 2. [cl2] = 0.30 m at equilibrium. 3. nocl(g) is produced until equilibrium is reached. 4. [nocl] = [no] = [cl2] at equilibrium. 5. cl2(g) is produced until equilibrium is

Why is it important for scientists to replicate each other’s experiments? to determine if important scientific results are repeatable to the research of other scientists to determine if slight alterations in the experiment can affect the result to further their own research