GeF3H is formed from GeH4 and GeF4in the combination reaction: GeH4 + 3GeF4 → 4GeF3H If the reaction yield is 83%, how many moles of GeF4are needed to produce 8.00 mol of GeF3H?

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.

you did not give any options thus this is the best answer i can give to you with this little information you have given

> they are both natural and not man made

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each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.