Please match the following terms with the correct description. Carbonic acid donates mathrm(H)+ ions to a solution & Base Bicarbonate accepts mathrm(H)+ ions from a solution & Acid
The reaction of 0 .194 g of Zn with HCl(aq) gave 80.3 mL (at 23.4^circ C of hydrogen gas collected over water in a gas tube. The water was 18.5 mm higher in the gas tube than it was in the beaker. The barometer reading is 698. mm Hg. Following the steps on pages 1 to 3, complete this table of data. Volume of H_(2) Gas Generated (mL) square
What colorless odorless, poisonous gas is a by-product of gasoline engines? A carbon disulfide B carbon monoxide C hydrogen oxide D hydrogen sulfide
The prefix for a hydrocarbon with 6 carbons is __ but- hex- pent- hept-
5. Solvents such as alcohols, acetones, methyl ethyl ketone, and petroleum based solvents are all examples of A. ignitable wastes B. radioactive wastes C. recyclable wastes D. bioaccumulative wastes
Continue to shake until no more salt will come out of the shaker. What happens to the last several crystals of salt that come out? The sodium ions dissolve while the chloride ions sink to the bottom. The salt crystals react with the water to form a new compound. All of the ions separate from each other and dissolve into the water. The salt crystals don't dissolve in the water and fall to the bottom unchanged.
Hydrogen sulfide is: A) Odorless B) Colorless C) Not flammable D) Red in color
Which of the following equations is correct? TC=FC+VC TC=FC-VC TC=MC-VC TC=FCtimes VC
What is the electron configuration for oxygen, O? 1s^22s^22p^3 1s^22s^22p^63s^2 1s^22s^22p^4 1s^22s^22p^63s^2
Acetylene cylinders should NEVER be operated while lying on their side because acetone could be drawn into the valve. regulator and hoses. Select one: a. False b. True
What is the major ion in seawater? sodium chloride magnesium sulfate
5. How can 100. mL of sodium hydroxide solution with a pH of 13.00 be converted to a sodium hydroxide solution with a pH of 12.00 ? (A) By diluting the solution with distilled water to a total volume of 200 mL (B) By diluting the solution with distilled water to a total volume of 1.00 L (C) By adding 100 mL of 0.10 MHCI (D) By adding 100 mL of 0.10 MNaOH
12. How does the concept of electron transfer explain why sodium and chlorine react to produce sodium chloride?(Hint: Think about the movement of electrons between sodium and chlorine atoms during the reaction.)
2. Use Passage 1 to answer question below. Suppose that in Experiment 2 a solution at a pH of 7.5 had been tested. Based on the results of Experiment 2, the percent recovery of cadmium for that solution would most likely have been: F. between $48\% $ and $80\% $ G. between $80\% $ and $88\% $ H. between $88\% $ and $95\% $ J. between $95\% $ and $100\% $ F G. H. J.
1.Use Passage 1 to answer question below. Based on the description of Experiment 1, when was the graphene separated from the sample liquid by centrifugation? A. Immediately before placing the sample in the water bath B. Immediately after removing the sample from the water bath C. Immediately before the percent recovery of the cadmium was determined D. Immediately after the percent recovery of the cad- mium was determined A B C D
Which statement about asbestos fibers is correct? A. All asbestos fibers are visible without magnification B. Asbestos fibers can be identified by color and texture alone C. Some asbestos fibers are extremely small and require laboratory testing to confirm their presence D. Asbestos fibers are always thicker than a human hair
Which of the following statements describes how water differs greatly from many other substances? It is less dense in its solid form than liquid form. It is a polar covalent molecule. It can change to solid liquid and gas phases. It is comprised of two different elements.
Name the following ionic compounds. Make sure you are in text mode $(''Tt'')$ Do NOT put a space between metal and charge in parentheses if naming a Type II metal ionic compound (i.e. iron(III)) a. $CoCl_{2}$ $\square $
3. How many grams of $Fe_{2}(SO_{4})_{3}$ will be produced from 4.25 moles of Fe? $2Fe+3H_{2}SO_{4}\rightarrow 1Fe_{2}(SO_{4})_{3}+3H_{2}$
Red litmus paper turning blue indicates the prescence of __ ? $Ni(II)$ $Ca(II)$ $Fe(III)$ Ammonium Ion
