On souhaite mesurer l'intensité du courant électrique qui traverse la lampe dans chaque montage (fig 1 et fig 2). reproduit les schémas en ajoutant l'appareil nécessaire pour mesurer l'intensité et indiqué les bornes<A et Com>

Write a balanced equation showing the formation of copper (ii) nitrite from its elements

Rank the following four acids in order of increasing bronsted acidity : h2f+ , ch3oh, (ch3)2oh+ , ch3sh2+

Which of the following characteristics are true of enzymes? check all that apply. a.)the structure of an enzyme can change if conditions change. b.)a single enzyme can normally catalyze a wide variety of reactions under many conditions. c.)enzymes are found only in nonliving systems. d.)enzymes allow living things to regulate body conditions through feedback mechanisms. e.)enzymes bind to specific substrates in specific ways. f.)enzymes increase the rate of reaction. g.)when shown in energy-reaction diagrams, enzymes represent the higher activation energy.