Chemistry questions and answers in June 2021

Convert 0.715 atm to mm Hg. 543.4 mm Hg Convert 63.3 kPa to mm Hg. 472.52 mm Hg Convert 2.15 atm to kPa. 218 kPa Convert 752 mm Hg to atm. 0.99 atm (Do not show your work in the space provided;  rec...
To understand the main properties of gases is important. For each of the following sentences, select the word that completes correctly the statement about gases. a.   Gases always fill their contai...
1.Sketch the galvanic cell represented by the following line notation. After drawing the galvanic cell, write the two half-reactions, write the net ionic redox reaction equation and identify the anode...
1.Potassium permanganate is a deep purple compound that can be used to determine the concentration of sulfur dioxide in the atmosphere. The reaction between sulfur oxide and potassium permanganate is ...
1.The following equation represents a reaction that took place in an acidic medium. Balance the equation using the half reactions methods. Identify each half-reaction as reduction or oxidation. MnO4^-...
1.which of the following statements is true about galvanic cell A) Electrons travel from the copper electrode to the magnesium electrode B)Electrons travel from the magnesium electrode to the copper e...
Chemistry 30, practice question. Question 15 (1 point) The equation that represents the equilibrium of hydrogen sulfate ion is OHSO4 (ag) + H20(1) + H30*(ag) + 5042- ( aq) OHSO 4 (aq) + H(ag) + 5042- ...
Chemistry 30, practice question. Question 13 (1 point) Many barbecues use propane as their fuel source. The reaction that takes place is shown below: C3H8(8) + 5 02(8) - 3 CO2(8) + 4 H20(8) During thi...
Question 1 Use the reaction below to answer the following question: CO 2(g)  + H 2(g)  ↔ CO (g)  + H 2 O (g)   At equilibrium if H 2(g)  is added then the Kc value and concentration of CO 2(g) ...
Penicillin antibiotics were among the first medications to be effective against many bacterial infections caused by staphylococci and streptococci. Penicillin G represented as HPg(s) is only slightly ...
Part 1 - Balance the following equations showing all your work. 1.   NO 2 -  + MnO 4 -   NO 3 -  + Mn 2+  (in acidic solution) 2.  I -  + MnO 3 -    I 2  + MnO 2  (in basic solut...