Zn(OH)_(2) has a K_(sp) of 4.5times 10^-17 If you have a solution of Zn(OH)_(2) that has a hydroxide ion concentration equal to 4.6times 10^-6M what is the solution? unsaturated supersaturated No answer text provided. saturated
Write the full electron configuration for P^3- E full electron configuration: square What is the atomic symbol for the noble gas that also has this electron configuration? atomic symbol: square
Which of the following represents a chemical change? Rocks being smoothed by rapid water movement The pink color of a rose Decomposition of stone due to acid rain
Write net ionic equation for the reaction between nitric acid and calcium hydroxide. Express your answer as a chemical equation Identify all of the phases in your answer. square A chemical reaction does not occur for this question.
Consider the reaction N_(2)(g)+3H_(2)(g)arrow 2NH_(3)(g) If the concentration of the product NH_(3) decreased, which way would the chemical system shift? Left Right It would not shift.
A chemical system is in equilibrium when free energy exists at __ the highest possible value the lowest possible value equal proportions
A flexible container holding 1.25 moles of a gas contracts from 25.0 L to 10.0 L when some gas is removed.The pressure and temperature remain the same throughout. How many moles of gas are in the contracted container? n_(2)=[?] mol
What characterizes a strong acid or base? ionic bonding presence of a hydroxide or hydrogen ion complete ionization in water polar covalent bonding
What is pH? the positive logarithm of the hydroxide ion concentration the positive logarithm of the hydrogen ion concentration the negative logarithm of the hydrogen ion concentration the negative logarithm of the hydroxide ion concentration
Which of the following is a property of an acid? sour taste strong color unreactive nonelectrolyte
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? $Pb_{3}(SO_{4})_{2}$ $PbSO_{4}$ $Pb_{3}(SO_{3})_{2}$ $PbSO_{3}$
