Mass of 2×10^21 number of atoms of an element is 0.4g. What is the mass of 0.5 mole of the element?

The electromagnetic force acts between what

Starch and are common polysaccharide carbohydrates found in plants. sucrose glycogen fructose cellulose

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.