Using the table below, calculate the average atomic mass for an unknown 6 points element“J” to the nearest hundredth atomic mass unit. *
Isotope Relative Abundance (%) Atomic Mass (amu)
J-6
7.59
6.02
J-7
92.41
7.02
Your answer

There is an area in idaho named craters of the moon where most of the ground is covered with basalt, adark gray, igneous rock with no visibl crystals. what can you infer about the geographical history of the area?

How many molecules are found in 1.32 mol of nacl?

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.