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
Given the following reactions and corresponding $\Delta H$ values, find the $\Delta H$ (to the nearest whole \#) for the reaction: $H_{2}SO_{4}(l)\rightarrow SO_{3}(g)+H_{2}O(g)$ $H_{2}S(g)+2O_{2}(g)\rightarrow H_{2}SO_{4}(l)$ $\Delta H=-235kJ$ $H_{2}S(g)+2O_{2}(g)\rightarrow SO_{3}(g)+H_{2}O(l)$ $\Delta H=-207kJ$ $H_{2}O(l)\rightarrow H_{2}O(g)$ $\Delta H=44kJ$ $\square $
Convert $4.68\times 10^{25}$ atoms $PBr_{3}$ to mol
Which of the following best describes a mixture? a material that is made up of many molecules a substance that can be changed into another substance a material that contains two or more substances a substance that has been broken down into Its smallest parts
What is used to of a hope of sixes in a a compound heard on the chermal reme? the periodic table prefixes chemical symbols the IUP AC
40. Using the hyphen form of symbol writing write the name of this atom. ${}_{9}^{19}F^{-1}$
Which of the following will not increase 1 point the rate of a chemical reaction? increasing surface area stirring decreasing the temperature increasing the concentration A __ is a substance that increases the rate of a reaction without being consumed. __ 1 point A(n) __ slows down the rate of a reaction. __ is a substance that 1 point
Use molecular orbital theory to determine the bond order in $H_{2}$ o 2 1 3
What partie should be used for the caygin akan when maning the characal formuls $SO_{2}?$ $\square $ disappointed mono- pent.
What happens to the pH of a buffer solution if it is diluted by adding more water? A) pH increases B) pH decreases C) pH remains the same D) pH becomes 7 E) It depends on the starting volume of the buffer
What is the chemical formula for lead (II)sulfate? $Pb_{3}(SO_{4})_{2}$ $PbSO_{4}$ $Pb_{3}(SO_{3})_{2}$ $PbSO_{3}$
