In the Northern Hemisphere, Choose ALL that apply Winter solstice occurs when the Earth's North Pole is tiled towards the sun longest day
Winter solstice occurs when the Earth's North Pole is tilted away from the sun shortest day
Summer solstice occurs when the Earth's North Pole is tilted towards the sun longest day
Summer solstice occurs when the Earths North Pole is tilted away from the sun shortest day​

What does the mass of 0.7891 mol of ferric oxide (fe2o3)

How many liters of oxygen gas, at standard temperature and pressure, will react with 35.8 grams of iron metal? 4 fe (s) + 3 o₂ (g) → 2 fe₂o₃ (s)

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.