When the following equation is balanced properly under basic conditions, what are the coefficients of the species shown? 2- 1 SiO3²- + 4 F 2 F₂ + 1 Si Water appears in the balanced equation as a product (reactant, product, neither) with a coefficient of 3 (Enter 0 for neither.) Which element is reduced? SiO²-

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3. 11 100 TRANSMETTANCE D C8H9CIO 4000 10 HSP-01-151 9 3000 8 2:2 7 2000 6 : 5 ppm 2 NAVENUMBERal 4 3 1500 : Vala 2 1000 3 1 0 500 200 180 COS-04-715 DEPT-90 DEPT-135 160 140 120 بلد لد 100 ppm 80 60 40 20 0

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Benzocaine has been tested as an anaesthetic for inhibition of m1 muscarinic acetylcholine signalling. Using the data below, plot a graph and determine the IC50. Concentration (M) 1 x 10-6 10 x 10-6 100 x 10-6 1000 x 10-6 10000 x 10-6 100000 x 10-6 % of control response 97 93 78 56 42 36

For questions 8 through 10, fill in constrict or dilate, then ↑ and ↓ arrows. 8.Acetylcholine will bronchioles → resistance → air flow 9. Histamine will bronchioles → resistance → air flow 10. Epinephrine will bronchioles →. resistance → air flow

A solution of DNA of unknown concentration (termed "[unknown] DNA solution") gave an absorbance value of 0.39 at 260 nm. The goal here is to determine the DNA concentration of this [unknown] DNA solution. To calculate this, you are given the following additional information: A DNA solution whose concentration is 50 ug/ml has an absorbance value of 1.0 at 260 nm. Using this information and knowing that A1/C1 = A2/C2 i. Calculate the DNA concentration (ug/mL) in the DNA solution of [unknown] ii. iii. iv. Once you have determined the DNA concentration of [unknown] DNA solution, calculate how many ug of DNA would be present in 25 μl of this DNA solution If you dilute the "[unknown] DNA solution" 10-fold, i.e. 1/10, what will the absorbance value (at 260 nm) of the diluted solution be? What will the new concentration of DNA of the diluted solution be?

what are the products of this reaction