Which of the following illustrates a single replacement reaction? O A 2Fe +3872 → 2FeBrz
O B. Ba(NO3)2 + NISO4 → Baso, Ni(NO3)2
O C. CaCl2 + Na2CO3 → CaCo3 + 2NaCl
O D. Fe + CuSO4 → Cu + FeSO4
SUBMIT

Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3

What amount of heat is exchanged when 106.2 grams of substance y goes from a liquid at 35 degrees celsius to a solid at the same temperature? melting point of substance y = 35 degrees c; δhvaporization = 3.67 j/mol; δhfusion = 3.30 j/mol. mwsubstance y = 28.22 g/mol. −12.4 j −3.51 x 102 j 1.24 x 101 j 351 j

What occurs when a cell engulfs large food particals