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
During brazing, which of the following may present health hazards? Zinc Beryllium Cadmium or phosphorus All are correct
Which particles determine the affinity of atoms to each other and thus the likelihood of a chemical reaction? Protons Neutrons Electrons Nucleus
Get It? Explain how the ion $HCO_{3}^{-}$ can be both an acid and a base. Describe what happens in the forward and reverse reactions when ammonia is dissolved in water. Identify the conjugate acid, the conjugate base, and the two conjugate acid-base pairs.
Write the net ionic equation between $Cr_{2}(SO_{4})_{3}(aq)$ and $Ba(OH)_{2}(aq)$ Be sure to include the states of matter. $\square $
Sequence the following equations in the steps of the ionization of phosphoric acid in the correct order. $HPO_{4}^{2-}(aq)+H_{2}O(l)\rightleftharpoons H_{3}O^{+}(aq)+PO_{4}^{3-}(aq)$ $H_{3}PO_{4}(aq)+H_{2}O(l)\rightleftharpoons H_{3}O^{+}(aq)+H_{2}PO_{4}^{2-}(aq)$ $H_{2}PO_{4}^{-}(aq)+H_{2}O(l)\rightleftharpoons H_{3}O^{+}(aq)+HPO_{4}^{-}(aq)$
When a halide leak detector is used, what color will a blue flame turn when it comes in contact with leaking refrigerant vapors? A. blue B. green C. white D. orange
What kind of Isomers are 1-butene and 2-butene (pictured above)? stereoisomers structural isomers geometric isomers not isomers
Write the balanced NET ionic equation for the reaction when $Cr(NO_{3})_{3}$ and $Li_{2}CO_{3}$ are mixed in aqueous solution. If no reaction occurs, simply write only NR. Be sure to include the proper phases for all species within the reaction.
What type of elements are the lanthanides and actinides? a mostly nonmetals and a few metals b mostly metals and a few nonmetals C all nonmetals d all metals
Describe what happens in the forward and reverse reactions when ammonia is dissolved in water. Identify the conjugate acid, the conjugate base, and the two conjugate acid-base pairs.
