Changing the subscripts of chemicals can mathematically balance the equations. a. Why is this unacceptable? b. Give an example and use molecular-level drawings to show why it is unacceptable. INTRODUCTION TO CHEMISTRY
Changing the subscripts of chemicals can mathematically balance the equations. a. Why is this unacceptable? b....
(d) For Figure 3(right), a × b = 5. Changing a vector equation to scalar equations. (5 pts) (a) Draw three mutually orthogonal unit vectors p,q,f. (b) Use a vector operation (e.g., +, -, , x) to transform the following vector equation into one scalar equation. Then solve the scalar equation for x. (2x-4p = 0 (c) Show every vector operation (e.g., +, -,, x) that transforms the following vector equation into three scalar equations. Then solve the scalar equations...
Why can you interchangeably use HB+/B and HA/A- in acid-base equations?
please solve question A, solve part B with
Matlab and explain why does part C can not
generate graph
5 ft A 1 ft B A) Determine the position x and the tension in the cable that is required for equilibrium. B) Use Matlab or Excel to show how tension in the ABC cable changes by changing the load from 5 lb to 50 lb at 5 lb increments. Generate the following graph and describe your observations: a. Cable tension...
36. Why must a limiting reagent be used? 37. Gravimetric analysis is a what? 38. Give the example of quantitative analysis. EX 739. Define Analytical Chemistry. Ex5 AGO. What is one of the forces of a chemical reaction? 41. What is the concern of quantitative analysis? 42. Why is it more important to use ionic equations although molecular equations can be used for any reaction? 43. True or False. Whether or not a chemical reaction has taken place after mixing...
1(i). Balance the following equations, and then write the net ionic equation (a) (NH4)2CO3(aq) + Cu(NO3)2(aq) → CuCO3(s) + NH4NO3(aq) (b) Mg(OH)2(s) + HCl(aq) → MgCl2(aq) + H2O(l) (c) BaCO3(s) + HBr(aq) → BaBr2(aq) + H2O(l) + CO2(g) (ii). For each reaction equation, identify the driving force of the reaction 2. What is an electrolyte? How can you experimentally differentiate between a weak electrolyte and a strong electrolyte? Name and give the formulas of a strong electrolyte and a weak...
Question 4 (a) Use molecular orbital theory to rationalize why 2π+2π cycloaddition can proceed photochemically and not thermally. [3 marks] (b) Suggest how the following compounds can be made from the starting material shown o details. the right hand side as o ne of the precursors. Give mechanistic он [6 +8+8 marks]
Question 4 (a) Use molecular orbital theory to rationalize why 2π+2π cycloaddition can proceed photochemically and not thermally. [3 marks] (b) Suggest how the following compounds can be...
Please use the equations provided to solve for all parts of
question B. Please be detailed, and show all steps with the
formulas and why they occur. I need to understand and see the work
with the solutions for each part so that I can understand how you
got the solution. Use the math to explain what is happening showing
work with the equations, and why. Thank you so much! Correct
answers will get a thumbs up! You must show...
Explain why some electrolyte solutions are strongly conducting, whereas others are weakly conducting. 4.2. Def fine the terms strong electrolyte and weak electrolyte. Give an example of each 4.3. Ex plain the terms soluble and insoluble. Use the solubility rules to write the formula of an insoluble ionic compound. 4.4. What are the advantages and disadvantages of using a molecular equation to represent an i reaction? 4.5. What is a spectator ion? IlIlustrate with a complete ionic reaction 4.6. What...
Write the molecular and net ionic equations for the reaction of aqueous hydrochloric acid and aqueous sodium hydroxide. Write the equation used to calculate q When 50.0 mL of 1.00 M hydrochloric acid and 50.0 mL of 1.00 M sodium hydroxide react, the temperature rises 6.7°C. Use the total solution volume, density of water, and specific heat of water to calculate DH in KJ/mol . Does doubling the volumes of 0.10 M acid and 0.10 M base in a neutralization...
quellion) 1. Balance the following equations: - KBr + Fe(OH)3 + KOH + - FeBrz b) - KOH + - Co3(PO4)2 → K3PO4 + CO(OH)2 2. Write the balanced chemical equation for the production of bromine pentafluoride from liquid bromine and fluorine gas. Be sure to include physical states. 3. Write the balance chemical equation to show the formation of aqueous aluminum chloride and hydrogen gas upon reacting powdered aluminum with a solution of hydrochloric acid. Be sure to include...