A compound of nitrogen and oxygen has the formula NO2. How many grams of oxygen would be combined with 87g of Nitrogen in NO2?

Rutherford's experiment indicated that matter was not as uniform as it appears what part of his experimental results implied this idea

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.

Match the mixture with the substance// i really need on this guys (it’s a pic btw)