in 100 words or more each with references and in text citations answer the 4 questions. 1. What is a covalent bond and what are the important characteristics of covalent bonds? How are covalent bonds formed? Do some covalent bonds have “ionic character”? Explain. 2. What is ionic bonding and what forces are associated […]
Models and Theories in Action Overview This assignment gives you an opportunity to examine how a public health organization puts a public health theory or model into action through their efforts to improve public health. In this assignment, you will: Study how a public health organization is currently working to address a public health […]
1) Explain the process by which an ionic compound attains equilibrium in an aqueous solution. 2) Determine whether a precipitate will form when 70.0 ml of a 0.0040M Ca(NO3)2 solution is mixed with a 30.0 ml of a 0.010 M Na2SO4 solution at 25 degrees C. Explain.
consider a solution of Al(no3)3 in water. A)what ion pairs would be expected to form? write thier formulas B) would the activity of al3 be great or less than molar concentration? explain! C) as the solution is dilutes with water, how does the activity of al3+ ion change with respect to molar concentration? explain!
3.2g sample of air contains .00074g of hydrogen cyanide. determine concentration in parts per million, of the hydrogen cyanide in…
Consider the following equation for the production of NO2 from NO:2 NO(g) + 02(g) ——> 2 NO2(g)a. If 84.8 L of 02(g), measured at 35C and 632mm Hg, is allowed to react with 158.2 g of NO, find the limiting reagent.b. If 97.3 L of NO2 forms, measured at 35C and 632mm Hg, what is […]
I need two assignments completed. This one posted & The other is on “Late Nite Labs Pro”. CHE101 – Laboratory Report Name: Date: Title: The title comes from the experiment. Purpose: This section consists of 1 or 2 sentences that describe the goals and benefits of the experiment. […]
Post Lab Questions 1) How would your calculation of the average number of water molecules present in Epsom salt be affected if you heated your sample too strongly and and too long and decomposition started to take place? (Too High, Too Low, Unchanged) Explain 2) How would the calculated number of water molecules present in […]
1. Our textbook explains that hot air rises and light objects float. The authors gave this as an example of buoyancy. From the picture below explain the buoyancy of the smoke at the molecular level. Describe the buoyancy starting at the very tip of the flames rolling from the window. Is the smoke laminar or […]
Research emergency response for fires that use water delivery enhanced with chemical additives for extinguishment. Briefly describe an incident and highlight some of the primary types of chemical additives and their effectiveness. Did the water have high heat of vaporization or gasify readily with the additives? Did the additives form any toxic products after […]
