How many moles of hydrogen do you need to react with 0.85 moles of nitrogen?
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Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.

Element j is 1s 2s 2p 3s . (i) how many unpaired electrons does j have? (ii) is j a good oxidizing agent or a reducing agent? (iii) state reason for the answer.