Atoms are very small. Approximately how many atoms would it take to make a stack as thick as a potato chip?
A. Thousands
B. Hundreds
C. Billions
D. Millions
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What is the molar mass of potassium nitrate, kno3

The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90

Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .