After three half-lives, what fraction of a radioactive sample remains? 1/8 1/3 1/2 1/6

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.

Lewis structure and molecular geometry for nh2cl

How many moles of gas are present if p=11 atm, v=12l, t=185k?