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the city is using sand trucks to place sand on the road during icy conditions....
Chemistry, 05.02.2020 13:45 MadisonBoone
Hurry !
the city is using sand trucks to place sand on the road during icy conditions. which best explains the use of sand?
a. the sand increases friction by increasing surface area.
b. the sand increases friction by increasing roughness.
c. the sand decreases friction by increasing surface area.
d. the sand decreases friction by increasing roughness.
Answers: 1
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The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams
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