Chemistry, 10.10.2020 01:01 5924000264
Consider the following reactions. (Note: (s) = solid, (l) = liquid, and (g) = gas.) Mg(s) + ½O2(g) → MgO(s) + 146 kcal/mole H2(g) + ½O2(g) → H2O(g), ΔH = -57.82 kcal/mole The temperature of the surroundings will:
1. increase
2. decrease
Answers: 2
Chemistry, 23.06.2019 15:40, butterflycc
The table below shows the freezing points of four substances. substance freezing point (°c) benzene 5.5 water 0 butane –138 nitrogen –210 the substances are placed in separate containers at room temperature, and each container is gradually cooled. which of these substances will solidify before the temperature reaches 0°c? benzene water butane nitrogen
Answers: 2
Consider the following reactions. (Note: (s) = solid, (l) = liquid, and (g) = gas.) Mg(s) + ½O2(g) →...
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