How many particles can be stored in a 4.0 L container at room temperature (23 C) and standard atmospheric pressure (101.3 kPa)?

2.1 moles
0.47 moles
6.1 moles
0.16 moles

Is this a single replacement reaction or there is no

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.

What is the relation between concentration of reactants and the rate of chemical reaction?