Chemistry, 27.01.2021 18:50, lelseymota123
Which change of phase is exothermic?
A) H2O(s) → H2O(g)
B) CO2(s) + CO2(l)
C) H2S(g) + H2S(l)
D) NH3(l) → NH3(g)
Answers: 1
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Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.
Answers: 2
Which change of phase is exothermic?
A) H2O(s) → H2O(g)
B) CO2(s) + CO2(l)
C) H2S(g) +...
B) CO2(s) + CO2(l)
C) H2S(g) +...
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