Predict the sign for S of these reactions/processes (1) positive, 2) negative, o
ID: 1051529 • Letter: P
Question
Predict the sign for S of these reactions/processes
(1) positive, 2) negative, or (3) it is not possible to predict/not enough information
melting double stranded DNA
freezing water
dissolving NaCl in water
changing the temperature of liquid water from 45 ºC to 25 ºC N2 (g)+ 3 H2 (g) NH3 (g)
CaCO3 (s) CO2 (g) +CaO (s)
mixing hot and cold water
unfolding a protein
forming a DNA double helix from its individual strands
mixing ice at -10°C with liquid water at 20°C
sublimating solid CO2
decreasing the temperature of a protein solution
3O2 (g) 2O3 (g)
dissolving glucose in water
Binding a drug to an enzyme
Explanation / Answer
sign for S of these reactions/processes.
melting double stranded DNA = Positive
freezing water = negative
dissolving NaCl in water = positive
changing the temperature of liquid water from 45 ºC to 25 ºC = it is not possible to predict.
N2 (g)+ 3 H2 (g) 2NH3 (g) = negative
CaCO3 (s) CO2 (g) +CaO (s) = positive
mixing hot and cold water = negative
unfolding a protein = positive
forming a DNA double helix from its individual strands = negative
mixing ice at -10°C with liquid water at 20°C = it is not possible to predict
sublimating solid CO2 = positive
decreasing the temperature of a protein solution = it is not possible to predict
3O2 (g) 2O3 (g) = negative
dissolving glucose in water = positive
Binding a drug to an enzyme = negative