What is the sum of all the stoichiometric coefficients in the balanced chemical equation for the reaction of aluminium with platinum (IV) nitrate? Platinum solid and aluminium nitrate are produced. Group of answer choices 16 14 13 12 15 11 10

19. Which is the correct balanced equation? Bromine is edoled to a container of sodium iodide, forming sodium bromide and iodine? O A. Br + Nal – NaBr + I O B. Br2 + 2 Nal 2 NaBr + 12 O C. 2 Br + 2 Nal →2 NaBr + 12 NaBr + 12 O D. 2 Br2 +2 Nal = 2 NaBr2 + 12 20. Given the equation: KNO3 - KNO2 + O2What coefficients are needed to balance the reaction? O A. 1,22 O 8. 1,3, 1 O C. 2,2, 1 D. 2, 3, 2 000 ° h lo of

1) what is the skeleton equation of iron(II) sulfide+ hydrochloric acid yields hydrosulfruic acid+ iron(II) chloride 2) what is the skeleton equation of potassium oxide+ water yields potassium hydroxide 3) what is the skeleton equation of ammonium sulfide+ lead(II) nitrate yields ammonium nitrate+ lead(II) sulfide

Select the precipitate that forms when aqueous lead(II) nitrate reacts with aqueous sodium sulfate. PbSO4 Pb2SO4 NaNO3 Na2NO3 PbS

now you return to the test tube containing Group III ions. After testing, you have a pink precipitate. Explain the identity of the Group III ions and how you came to this conclusion

Write a complete balanced equation for the following and indicate the type of reaction: aluminum + aqueous copper (II) nitrate ⟶⟶  silver acetate + potassium nitrate ⟶⟶  nitric acid + calcium hydroxide ⟶⟶

1) what is the skeleton equation of iron(II) sulfide+ hydrochloric acid yields hydrosulfruic acid+ iron(II) chloride 2) what is the skeleton equation of potassium oxide+ water yields potassium hydroxide 3) what is the skeleton equation of ammonium sulfide+ lead(II) nitrate yields ammonium nitrate+ lead(II) sulfide

Imagine you were working as a laboratory technician and your principal investigator asked you to develop Benedict’s test into a quantitative measure of the concentration of reducing sugar in a solution. To do this, you would first need to decide what to measure and then establish the relationship between your measurements and different concentrations of reducing sugars. Explain generally what you would decide to measure and how you would go about determining the relationship of your measurements to the concentration of reducing sugar.

Classify the following chemical reaction equation: 2 H N O 3 + C a ( O H ) 2 → C a ( N O 3 ) 2 + 2 H 2 O

Write the balanced molecular chemical equation for the reaction in aqueous solution for copper(I) bromide and potassium sulfate. If no reaction occurs, simply write only NR.