Acompound is formed when 12.2 g mg combines completely with 5.16 g n. what is the percent composition of this compound? show all work and include the percentage of both magnesium and nitrogen.

Use the drop-down menus to answer each question. which runner finished the 100 m race in the least amount of time? which runner stopped running for a few seconds during the race? at what distance did anastasia overtake chloe in the race?

Ill give brainiestif one neutron initiates a fission event that produces two neutrons in the products, how many new reactions can now be initiated? if each of the neutrons produced in the first fission event then initiates a fission event that produces one neutron in the products, how many new reactions can now be initiated by each neutron? how many neutrons in total were produced by the two fission events described?

Answer asap need it by wednesday morning calculate the ph of 0.02m hcl best answer will be brainliest