Assuming we have 100 g of sample
30.45/MW of N 14g = 2.175
69.55/MW of O 16g = 4.34
4.34/2.185 = 2
for every 1 mole of N we have 2 moles of O
so the empirical formula would be NO2
without having the molecular weight of the entire molecule the molecular formula can not be determined with the information in your question
Warm is less heaver then cold air so warm air rise and cold air sinks
1. True
2. True
3. False
4. True
Particles will have more energy and will vibrate really fast.
(Hope this helps)
True.
SF are used for simplifying figures in a measurement to produce a more accurate reading.
