mini case 6=1

Complete the following reaction:   27Al13   +  α  →   30P15 P  + _______

Juan performed the same chemical reaction twice. His data from the first attempt is indicated by the red line. His data from the second attempt is indicated by the blue line. What change did Juan most likely make to his reaction the second time he performed it?

Time [Z] (hours) (mg/L) |160 2 |140 3 |130 6 100 8 80 10 |60 |12 40 Calculate k, the elimination rate constant, responsible for drug degradation (in mg/L*hr).

Calculate the full rate law using the information below: 2 NACHOS (g)  →  12 CHIPS (g)  +  3 CHEESE (g)   [NACHOS]0 (M)                   Initial Rate (M–1s–1) 0.101                                     0.00484 0.0910                                   0.00437 Group of answer choices Rate  =  5.61 × 10–2 M–1 s–1 [NACHOS]2 Rate  =  6.03 × 10–1 M–2 s–1 [NACHOS]3 Rate  =  4.79 × 10–2 s–1 [NACHOS] Rate  =  1.66 × 10–3 M1/2 s–1 [NACHOS]2/3 Rate  =  1.78 × 10–2 M–1/2 s–1 [NACHOS]3/2

Explain how  the rate of reaction rate in pressure cookers was increased by including these subtopics: 1.  Explain with collision theory and energy potential diagrams: how the rate of reaction is affected by temperature, surface area, nature of reactants, concentration, etc. by using collision theory? 2l Discuss whether the reaction is endothermic or exothermic (use Hess’s Law, Le Châtelier’s Principle, or Kinetic Molecular Theory to explain in increasing rate of reaction and relevance by including all 4 required subtopics )

What can contamination of reagents leads to? Unreliable results Reliable results Reproducible results Good results Catalase is the enzyme found in potatoes and It decomposes hydrogen peroxide (H202) to form water and oxygen gas. H202 + catalase - ----> H2O + 02 +E. The reaction is maintained at temperature 40 degree Celsius and there was a formation of bubbles. Based on the enzymatic reaction given, What do you think is the substance responsible for the formation of bubbles? Oxygen gas Hydrogen gas no reaction, because the enzyme catalase will be deactivated no reaction, because the enzyme catalase will be denatured Other: Based on the Fehling's test video, do you think the sugars ribose (in RNA) and the deoxyribose (in DNA) will both form a positive result (red precipitate) No Yes

very strong back drugs on the tumor sizes of mice. The doctor is searching for the correct combination of medications that will make the tumor shrink in size. The drugs he has at his disposal are drugs / B and C. His experiments are summarized below. Average rate of Exp. [A), in [B], in [C], in shrinkage M M M # |(mm/week) 0.0010 0.0020 0.0030 0.010 II 0.0010 0.0010 0.0020 0.0050 0.0030 0.0020 0.0015 0.090 0.0030 0.0020 0.0030 0.090 II IV What is the rate law for this system? %23

Collagen is used to date artifacts. It has a rate constant = 1.20 x 10-4 /years. What is the half life of collagen?

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