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Link: https://youtu.be/R8EV8R8f5Tw
Please watch first the given link above and answer the ff questions:
a. Enumerate the four different types of materials and give some examples of each
b. What are the characteristics of metalic materials?
c. What are the characteristics of plastic materials?
d. What are the characteristics of ceramic materials?
e. How can alloying after the mechanical properties of metals?
f. State two components of composite materials and give their roles.
Is a 0.15M solution of potassium benzoate C6H5COO-K+ acidic, basic, or neutral? Calculate the pH. The Kb for benzoic acid is 1.5 X 10-10.
Sodium azide, NaN3 , is made for use in car 'air bags'. When this compound is heated to 300 degrees celsius, it rapidly decomposes into its elements.
Select the gas with the largest root-mean-square molecular speed at 25°C. a. NH3 b. CO c. H2 d. SF6
(a) Derive the Cu2+ hydroxide solubility diagram given in class. Show your derivations for the lines and then plot the lines and include the solubility or CT,Cu as a function of pH (a log C - pH diagram)
The water as well as calorimeter is at 25 Celsius. The graphite is ignited as well as burned and the water temperature rises to 28.05 Celsius. The heat capacity for the calorimeter is 5.15KJ/C. Compute DeltaH per MOLE of the reactant for this reac..
How many moles of Na and Cl2 are needed to make 7.3 moles of NaCl? Use the balanced equation 2Na + Cl2 --> 2NaCl
Many gases are shipped in high-pressure containers. Consider a steel tank whose volume is 65.0L and which contains O2 gas at a pressure of 16,500kPa at 23°C.
First of the reactant is 2-methyl-2-butanol and the products are 2-methyl-1-butene and 2-methyl-2-butene. I started out with exactly 1.2g 2-methyl-2-butanol and my final product was 0.09 g.
How many gaseous molecules are produced by the detonation of 12 molecules of nitroglycerin?
This buffer is to be prepared by mixing 25.0 mL of 0.1 M HCl with the correct mass of solid sodium acetate. You will determine the mass of solid sodium acetate needed.
Steel vessel containing dry air at 1.00 bar and 27 degree Celsius and the vessel is heated to 227 degree Celsius. What is the partial pressure of H2O (in bar)
Compute the mass of H 2 O formed when 22 grams of propane are burnt if 4.4grams of propane are burnt in excess O2 7.2g of H 2 O are formed.
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