Question 2 (2 points) Which type of bond is an electrical attraction between fully charged (not partially- charged)atoms? Covalent bond. Van Der Waals bond Hydrogen bond. Ionic bond. Hybrid bond.
Devin knows(that his sample of strontium sulfate contains 2.4 moles. How many grams is this? Answer: square
Which of the following is a double replacement reaction? Ca(OH)_(2)+H_(2)SO_(4)arrow CaSO_(4)+2H_(2)O CH_(4)+2O_(2)arrow CO_(2)+2H_(2)O 8Fe+S_(8)arrow 8FeS Zn+H_(2)SO_(4)arrow ZnSO_(4)+H_(2)
Write the names of the following ionic compounds: NiSO_(4) square Fe_(2)(SO_(3))_(3) square Pb(NO_(2))_(2) square SnCO_(3) square
An ionic crystalline solid is hit with a hammer and shatters. Which of these is a property the solid will exhibit? malleability brittleness conductor
Question Carbohydrates usually have __ as many hydrogen atoms as carbon and oxygen atoms. Answer Input Soeling counts but capitalization doesn't square
Which of the following steps in solution formation is exothermic? Answer: A intermolecular forces. Overcoming the solute-solute B intermolecular forces. Overcoming the solvent-solute C intermolecular forces. Overcoming the solvent-solvent D intermolecular forces. Establishing the solute-solvent
P_(2)O_(3)+3H_(2)Oarrow 2H_(3)PO_(3) How many grams of diphosphorus trioxide, P_(2)O_(3) . are required to react completely with 4.0 moles H_(2)O ? molar mass P_(2)O_(3):109.94g/mol [?]gP_(2)O_(3)
What is the net ionic equation for the reaction of HCl with NaOH? HCl+NaOHarrow H_(2)O+NaCl H^++OH^-arrow H_(2)O 2H^++2Cl^-+Na_(2)^++2OH-arrow H_(2)O+Na_(2)^++2Cl^- H^++Cl^-+Na^++OH-arrow H_(2)O+Na^++Cl^-
A. Identify the type of attraction that holds covalent network solids together. B. Describe two of the following specific properties of covalent network solids: 1) general hardness 2) conductivity 3) effect on melting point
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.
