Which of the following is a galvanic cell? A. Silver (Ag) oxidized, aluminum (AI) reduced
B. Copper (Cu) oxidized, aluminum (Al) reduced
C. Aluminum (AI) oxidized, zinc (Zn) reduced
D. Aluminum (AI) oxidized, sodium (Na) reduced

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Substance x has a fixed volume, and the attraction between its particles is strong .substance y had widely spread out particles and can be compressed what can most likely be concluded about these substances

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