NaI + Cl2 → Naci + I2 When the equation is balanced, which coefficient should be placed before NaCl?
Ο Α. 3
B. 5
C. 2
OD 4

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.

Calcium chloride +gold(1) oxide—>

Use examples from the article to explain one positive and one negative effect that chemistry has had on society.