Sodium (Na) and water (H20) undergo a chemical reaction that produces sodium hydroxide (NaOH) and hydrogen gas
(H2).
Which equation represents this chemical reaction?
A. H2 + 2H20 - 2Na + 2NaOH
B. 2Na + 2H20 – 2NaOH + H2
C. 2Na + H2
2NaOH + 2H20
D. 2Na + 2NaOH - 2H2O + H2

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What is the composition, in atom percent, of an alloy that consists of 4.5 wt% pb and 95.5 wt% sn? the atomic weights for pb and sn are 207.19 g/mol and 118.71 g/mol, respectively.(a) 2.6 at% pb and 97.4 at% sn(b) 7.6 at% pb and 92.4 at% sn(c)97.4 at% pb and 2.6 at% sn(d) 92.4 at% pb and 7.6 at% sn

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In saturated organic compounds, all the bonds between carbon atoms are called?