AP CHEM QUESTION: ORGANIC CHEM HELP PLS?
c)reduced Cr goes from Cr(6) to Cr(3); gaining electrons equals reduction.
Chemistry Question?
Blast furnaces extract pure iron from the iron (III) oxide in iron ore in a 2 step process: Step 1: 2C(s) + O2(g) → 2CO(s) Step 2: Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g) What is the net chemical equation? A. 6C(s) + 3O2(g) + 2Fe2O3(s) + 6CO(g) → 6CO(g) + 4Fe(s) + 6CO2(g) B. 2C(s) + O2(g) + Fe2O3(s) + 3CO(g) → 2CO(g) + 2Fe(s) + 3CO2(g) C. 6C(s) + 3O2(g) + 2Fe2O3(s) → 4Fe(s) + 6CO2(g) D. 2C(s) + O2(g) → 2Fe(s) + 3CO2(g) E. 6C(s) + 3O2(g) → 4Fe(s) + 6CO2(g)
Can you pls help with chemical equilibrium? Honors Chemistry question.?
The reactions are, mixing the components of the product in one case and the the reactants of this reaction in the second case H2O + CO <---> H2 + CO2 H2 + CO2 <---> H2O + CO Since the components are all one molar then the equilibrium position will be the same. I am assuming the reaction proceeds at 350 C, and not a higher temperature.
EQUILIBRIUM CHEMISTRY! HELP PLS PLS!?
The reaction is mildly exothermic, therefore if you reduce the temperature the position of the equilibrium will shift so as to nullify the change - in other words, it will shift so as to INCREASE the temperature back up again, so to do that it will drive the reaction in the direction of the exotherm, i.e. to the right, which is also the direction corresponding to the formation of methanol. If you increase the pressure, the equilibrium will again shift so as to nullify the change, so it will shift to DECREASE the pressure back down again. To do that it will convert more gas (CO2 and H2) to liquid (methanol), therefore increasing the yield of methanol. The key thing to remember is principal of le Chatalier, which says that whenever a change is made to a reaction that is in equilibrium, the position of equilibrium will change so as to remove the change.
Honors Chemistry Lab: Chemical Equilibrium Experiment #29?
This lab is killing me. I know I may seem like I'm being a drama queen but my chemistry teacher is so smart that he assumes that everyone knows what he is talking about and does not help us at all. We really need help and your help would be greatly appreciated. This lab is a big part of my grade and I would appreciate it if none of you guys purposely put wrong answers to mess with me... #1~9 for processing the data (on the picture) And my measurements are: Vial #3: 5 ml Vial #4: 4.75 ml Vial #5: 3 ml Vial #6: 1.5 ml Thank you so much (:
Please check my chemistry answers?
I'm not gonna lie this is a test for honors chemistry I have to do. I already did all the questions to the best of my knowledge I just need to check my answers... please don't tell me I got an answer wrong unless you are sure! Please and thank you! I put a <<<<< by my answers! I just really need to do good on this test!! 6. On the basis of chemical structure, which of the following solids will most easily conduct electricity? (Points : 3) FeCl3 MgF2 Fe <<<<<<< FeO2 Question 7.7. Which of the following is a monatomic anion? (Points : 3) Fr+ NH4+ SO42- F- <<<< Question 8.8. Which of the following is true about NH4+? (Points : 3) It is a polyatomic cation because it has more than one atom and a positive charge.<<<<<< It is a polyatomic anion because it has more than one atom and a positive charge. It is a polyatomic cation because it has more than one atom and a negative charge. It is a polyatomic anion because it has more than one atom and a negative charge. Question 9.9. Which of the following best describes PO4? (Points : 3) polyatomic cation monatomic anion monatomic cation polyatomic anion<<<<< Question 10.10. For the hypothetical compound AX3, which of the following statements is true? (Points : 3) A is a nonmetal from Group 3A, and X is a metal from Group 1A. A is a metal from Group 1A, and X is a metal from Group 7A. A is a metal from Group 3A, and X is a nonmetal from Group 7A.<<<<< A is a metal from Group 3A, and X is a nonmetal from Group 5A. Question 11.11. The ionization energies (kJ/mol) of hydrogen (H), nitrogen (N), sodium (Na), and oxygen (O) are 1,312, 1,402, 1,681, and 1,314, respectively. Which element combination is least likely? (Points : 3) NH4+ OH- NaO- <<<<<< NO3-
Can someone explain to an Honors Chem 1 student the concept of gas laws?
I'm in high school, and my Chemistry 1 teacher did not do a very good job explaining what gas laws were or how to do those types of problems. Could you please explain what they are and give a few examples so I can understand? Much appreciation to those who answer.