Which of the following is a redox reaction?
A. 2Na +Cl2 -> 2NaCL
B. Ba^2 + SO4^-2 -> BaSO4
C. K2Cr2O7 + 2KOH ->2K2CrO4 + H20
D. Na2CO3 + 2HCL -> 2NaCl +CO2+ H2O
E. H2O -> H^+ +OH^-
Answer: A
Chemistry
- Which of the following objects, all moving at the same speed, will have the highest de Broglies wavelength?
- Which of the following is a correct formation reaction?
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- Which of the following is a weak base?
- Which of the following will produce a precipitate?
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- An element with the atomic number twelve
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