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Write a one to two (1-2) page mechanism description (written in your own words) telling an audience of fifth graders in a science class how the appliance works. The document must include:
a. Headings
b. At least one graphic
c. A logical spatial order
In your document, you should:
The mass spectrum of an organic compound shows the relative abundances of M to be 62.87% and M 1 to be 4.760%. Assuming the peaks are caused by 12C and 13C isotopes,
In 1774, Joseph Priestley discovered that mercury(II) oxide decomposes on heating to elemental mercury and a gas, later called oxygen. If 56.0 g of mercury(II) oxide is heated and 26.0 % of it decomposes, what is the pressure of oxygen gas in a 62..
the experiment is then repeated with the copper immersed in a stream of water that maintains its temp at 293. Calculate the change in entropy of the copper and the water in this case.
What is the osmotic pressure of a solution formed by dissolving 44.0 mg of aspirin (C9H804) in 0.357 L of water at 25 degrees Celsius
How many gigagrams of niobium contain the same number of atoms as 12.5 nanograms of vanadium
A diploid organism with a 30,000-kb haploid genome contains 19% T residues. Calculate the number of A, C, G, and T residues in the DNA of each cell in this organism.
A sample of carbon dioxide has a volume of 575 mL at 752 torr and 22°C. What is the mass of carbon dioxide in this sample
a mixture of gases containing .20 mol of SO2 and .2 mol of O2 in a 2.0L flask reacts to form SO3. If the temperature is 25C, what is the pressure in the flask after reaction is complete?
The enthalpy of combustion for C6H12O6(s) is -2830kj/mol. Write a balanced equation for the combustion of C6H12O6 in air. Using the delta Hac values and the given heat of combustion calculate the standard enthalpy of atom combination Delta H ac of ..
the concentration of silicon in an iron-silicon alloy is 0.55 wt. what is the concentration in kilograms of silicon per
Please assist with the following exercise. "Your business uses all hubs. Users complain about slow network access. Write a business case memo to the owner justifying the purchase of switches to replace the hubs.
Consider the titration of a 24.0 mL sample of .175 M of CH3NH2 with .155 M HBr. Determing each of the following: the volume of added acid required to reach the equivalence point
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