Which of the following equations is balanced and follows the law of conservation of mass?

a. 2fe + 3o —> fe2o3
b. h2 + o2 —> 2oh
c. 2mg + ci —> mgci2
d. ch4 + 3o2 —> 2co2 + 2h2o

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 of the following are correct values for the ideal gas laws constant r

Which statement best describes the he properties of iconic compounds ?