Over a million students use our free study notes to help them with their homework
When it rains, nitrates added to the soil by fertilisers can run off into water courses, such as lakes. This is called leaching. The high level of nitrates in the water accelerates the growth of plants at...
3.5 g of sodium500 cm3 of water is 0.5 dm33.5 / 0.5 = 7 g dm-3
1s22s22p6
←
972
973
974
975
976
→
Internet Safety
Payment Security
Cyber
Essentials