Using an excess of ethene, 4.10g of chloroethane was produced from 0.200 moles of HCl. Assuming that there is enough ethene, what mass of chloroethane would be expected to be made from 0.200 mol of HCl?

first one is the correct answer

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

answer:

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