If a radioactive sample starts with 100 g, how many grams of the original substance will be left after 5 half lives? Show your work in the space provided.

City a and city b had two different temperatures on a particular day. on that day, four times the temperature of city a was 8â° c more than 3 times the temperature of city b. the temperature of city a minus twice the temperature of city b was â’3â° c. what was the temperature of city a and city b on that day? city a was 5â° c, and city b was 4â° c. city a was 3â° c, and city b was â’1â° c. city a was 8â° c, and city b was â’3â° c. city a was 5â° c, and city b was â’5â° c.

Which other elements contain the same number of outer electrons as sodium

Calculate the concentration of all species in a 0.165 m solution of h2co3.