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1. Write the complete balanced equation for the reaction that occurs when C6 H6 combusts in O2.
2. What types of questions can be answered through science, and what questions are beyond the boundaries of science? Be specific and give examples to support your answer.
3. Describe the main points of Dalton's atomic theory and then explain what points of the theory are still accepted in modern atomic theory and what points have been changed as the result of later experiments and discoveries.
4. If 7.65 grams of iron (III) oxide react with 6.85 grams of carbon monoxide to produce 5.10 g of pure iron, what are the theoretical yield and percent yield of this reaction? Be sure to show the work that you did to solve this problem. unbalanced equation: Fe2O3 + CO --> Fe + CO2.
5. Write the complete balanced equation for the reaction between CaCO3 and KCl.
The same two compounds were recovered on treatment of A with hot potassium permanganate under acidic conditions. Provide structures for A, B, and C.
the pH of a saturated solution of a metal hydroxide MOH is 9.30. calculate the Ksp for the compound
what common laboratory test of viscoelasticity does this test most closely correspond? Estimate the average life of the same tubing in the same rupture test at 30 deg C and 37 deg C
Question- Show the step by step synthesis of Gly-Ala-Phe using the Merrifield protein synthesis. Show the structure for BOC and other relevant pieces at least once before you start abbreviating them.
The following table lists molar concentrations of several ions in seawater. Using a density of 1.022 g/mL for seawater
A sample of gas occupies 10.5 L at 600 torr and 50C. What volume will it occupy at STP?
Complete and balance the following equations, and identify the oxidizing and reducing agents. (Recall that the O atoms in hydrogen peroxide, H2O2, have an atypical oxidation state.)
how many moles of Cu2O can be produced from the reaction of 0.66 mol Cu with 0.40 mol O2?
What is the boiling point of a mixture composed of 95.0 g HOCH2CH2OH (ethylene glycol) and 205 g H2O? The boiling point elevation constant for H2O is 0.512 °C/m.
A galvanic cell Zn / Zn2+ // Cu2+ / Cu generates a current of 4.00 Amperes for 1.00 hour. The cathode increases in mass by 10.0g . If charge on an electron is 1.602 x 10-19 coulombs/ electron. Calculate the Avogadro's number using these experimenta..
A 0.1019g portion of an aspirin tablet was dissolved in sufficient water to prepare 1.000L of solution. A pipet was used to transfer 10 mL of the solution to a 100 mL volumetric flask.
The graph above shows the heating curve of wate
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