If this decay has a half life of 20.60 years what mass of 72.5 g sodium-22 will remain after 15.6 years

Cis the answer ur welcome if i get it wrong u don't have to me

The answer is just took the test

Answer is: hydrogen is being oxidized.chemical reaction: co₂ + h₂ → co + h₂o.oxidation half reaction: h₂ → 2h⁺ + 2e⁻.reduction half reaction: c⁺⁴ + 2e⁻ → c⁺².oxidation is increase of oxidation number, hydrogen change oxidation number from neutral charge (in molecule of hydrogen) to oxidation number +1 (in water).

Yes, well how much of all chemistry is to do with numbers? a lot! so being good at mathematics makes a huge aspect of chemistry so much easier but if you aren't mathematical then you can work at it and become reasonably proficient at it.hope i ~