(i)how many atoms are present in 7g of lithium?
(ii)how many atoms are present in 24g of carbon?
calculate the number of moles in each of these substances
19g of fluorine, f2
22g of carbon dioxide, co2
17g of hydroxide, oh- ions

Put these processes of the water cycle in the correct order, starting at the point where the water is in the lake: 1. water evaporates into the atmosphere 2. rain, snow, or other precipitation falls 3. water collects into larger bodies of water 4. water vapor condenses into liquid water

Write a balanced equation showing the formation of copper (ii) nitrite from its elements

Draw the aromatic compound toluene (methylbenzene). show all hydrogen atoms, including those on the ring.