Iron rusts when exposed to air → chemical property
the answer is d, cuz i just did it rn on my study island and i got it right :)
%(NaHCO3)= ((mass NaHCO3)/(mass NaHCO3 + mass water))*100%
m=Volume*Density
Density of water =1 g/ml
m(water) = Volume(water)*Density(water) = 600.0 ml * 1g/ml=600g water
%(NaHCO3)= ((20.0 g)/(20.0 g + 600 g))*100%=0.0323*100%=32.3%
Answer:
The Net reaction is
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Explanation:
From the Question we are told that the buffers are
and 
When NaOH is added the Net ionic reaction would be
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I believe it is either A or B