Chemistry concepts and calculations

Which statement about oxidation numbers (or states) is not true? A) For oxidatio

Which statement about oxidation numbers (or states) is not true? A) For oxidation numbers (or states), we completely disregard the notion of sharing electrons. The covalent electr…

Which statement about real gases is true? The volume of the gas particles is zer

Which statement about real gases is true? The volume of the gas particles is zero. The mass of the gas particles is zero. Forces of attraction and repulsion exist between gas part…

Which statement about reasonance hybrids is correct Resonance hybrid structures

Which statement about reasonance hybrids is correct Resonance hybrid structures are drawn when Lewis dot structures that follow the octet rule cannot be drawn. A resonance hybrid …

Which statement about the Born-Haber cycle is false? a. The cycle involves an io

Which statement about the Born-Haber cycle is false? a. The cycle involves an ionization energy. b. The cycle is an application of Hess's Law. c. The cycle is involves a lattice e…

Which statement about the equilibrium constant is true? The value of K_c changes

Which statement about the equilibrium constant is true? The value of K_c changes as temperature changes. never changes. Changes as product concentration changes changes as reactan…

Which statement about the following chemical reaction is not correct? 3H_2 + N_2

Which statement about the following chemical reaction is not correct? 3H_2 + N_2 rightarrow 2NH_3 a. For every mole of nitrogen consumed, two moles of ammonia are produced. b. For…

Which statement about the following redox reaction in acidic solution is not cor

Which statement about the following redox reaction in acidic solution is not correct? H2S(aq) + Cr2O72(aq) S(s) + Cr3+(aq) The oxidation state for sulfur goes from 2 0. The oxidat…

Which statement about the hybridized oxygen molecule in water is not correct? Th

Which statement about the hybridized oxygen molecule in water is not correct? The electrons remain in their assigned orbitals. The overall energy of the sp3 orbitals is exactly th…

Which statement about the hybridized oxygen molecule in water is not correct? Th

Which statement about the hybridized oxygen molecule in water is not correct? The electrons remain in their assigned orbitals. The overall energy of the sp3 orbitals is exactly th…

Which statement about the modem periodic table is FALSE? A) Elements are arrange

Which statement about the modem periodic table is FALSE? A) Elements are arranged in order of increasing atomic number. B) A group is a vertical column of elements. Elements in th…

Which statement about the properties of gas is not correct? Unlike a solid or a

Which statement about the properties of gas is not correct? Unlike a solid or a liquid, gases expand to occupy the entire volume of their container. Different gases are completely…

Which statement about the quantum numbers that identify an atomic orbital is not

Which statement about the quantum numbers that identify an atomic orbital is not correct? Orbitals with the same values for the principal quantum number and the angular momentum q…

Which statement about the rocks and earth crust is most accurate? A. Most rocks

Which statement about the rocks and earth crust is most accurate? A. Most rocks on earth are unchanged since they formed 4.5 billion years ago. B. Igneous rocks can become sedimen…

Which statement about the shape or geometry of a molecule is not correct? a. Phy

Which statement about the shape or geometry of a molecule is not correct? a. Physical properties of a substance are not affected by the shape of the molecules. b. Solubility of a …

Which statement about the slow step in the mechanism for a reaction is true? It

Which statement about the slow step in the mechanism for a reaction is true? It has a rate that is independent of the activation energy for the reaction. It limits the effectivene…

Which statement about this titration curve is true? a) this is a titration of a

Which statement about this titration curve is true? a) this is a titration of a weak acid with strong base b) the pH at the equivalence point is 7.0 c) at 8 mL of titrant added, t…

Which statement accurately describes the purpose of experiments? Experiments can

Which statement accurately describes the purpose of experiments? Experiments can be replaced by a simple, logical reasoning of known facts. Experiments are designed to produce the…

Which statement accurately explains the reaction below? Cr_2O^2-_r (aq) + s^2- (

Which statement accurately explains the reaction below? Cr_2O^2-_r (aq) + s^2- (aq) rightarrow Cr^3+ (aq) + S (s) Chromium is oxidized from a + 7 oxidation state to a + 3 oxidatio…

Which statement below is INCORRECT for the increased solubility of a sparingly s

Which statement below is INCORRECT for the increased solubility of a sparingly soluble salt, AgCl, in an inert salt solution, NaNO3? A) The ionic atmosphere around the silver cati…

Which statement below is false? 1 millimeter = 0.1 centimeter 1 kilometer = 1000

Which statement below is false? 1 millimeter = 0.1 centimeter 1 kilometer = 10000 centimeters 1 gram = 1000 milligram 30 centimeters is closest to: 6 inches 1/2 yard 1 foot 30 inc…

Which statement below is most accurate? Corrosion cannot occur during oxidation

Which statement below is most accurate? Corrosion cannot occur during oxidation reduction reactions There is no correlation between reactivity of a metal and its rate of corrosion…

Which statement below regarding the various heat capacities is not correct? A he

Which statement below regarding the various heat capacities is not correct? A heterogeneous object cannot be characterized by a specific heat capacity. The molar heat capacity of …

Which statement best describes the difference between the charge of a polyatomic

Which statement best describes the difference between the charge of a polyatomic ion and the oxidation states of its constituent atoms? (For example, the charge of NO3 is 1-, and …

Which statement best describes the entropy that occurs when two gases are added

Which statement best describes the entropy that occurs when two gases are added to a similar container? A.The gases will remain in the place they were added due to an increase in …

Which statement best describes the primary limitation of oxidation state (or oxi

Which statement best describes the primary limitation of oxidation state (or oxidation number)? a)In molecules, electrons are not just in atomic orbitals. They are also in molecul…

Which statement best describes the primary limitation of oxidation state (or oxi

Which statement best describes the primary limitation of oxidation state (or oxidation number)? a)In molecules, electrons are not just in atomic orbitals. They are also in molecul…

Which statement best describes the primary limitation of oxidation state (or oxi

Which statement best describes the primary limitation of oxidation state (or oxidation number)? In molecules, electrons are not just in atomic orbitals. They are also in molecular…

Which statement best describes the primary limitation of oxidation state (or oxi

Which statement best describes the primary limitation of oxidation state (or oxidation number)? In molecules, electrons are not just in atomic orbitals. They are also in molecular…

Which statement best describes the relationship between pH and H^+? pH and H^+ a

Which statement best describes the relationship between pH and H^+? pH and H^+ are directly proportional pH and H^+ are indirectly proportional Which pH values are typically consi…

Which statement best explains the idea of delocalized electrons? 1.Delocalized e

Which statement best explains the idea of delocalized electrons? 1.Delocalized electrons are electrons that are able to move more freely within their atomic orbitals. The extra ro…

Which statement best explains the idea of delocalized electrons? A) Delocalized

Which statement best explains the idea of delocalized electrons? A) Delocalized electrons are electrons that are able to move more freely within their atomic orbitals. The extra r…

Which statement best explains the idea of delocalized electrons? a) Delocalized

Which statement best explains the idea of delocalized electrons? a) Delocalized electrons are electrons that are able to move more freely within their atomic orbitals. The extra r…

Which statement best explains the idea of delocalized electrons? a) delocalized

Which statement best explains the idea of delocalized electrons? a) delocalized electrons are electrons that are able to move more freely within their atomic orbitals. The extra r…

Which statement best explains the meaning of the phrase \"like dissolves like\"?

Which statement best explains the meaning of the phrase "like dissolves like"? The only true solutions are formed when water dissolves a polar solute. A solvent and solute with si…

Which statement concerning batteries and fuel cells is incorrect? A fuel cell us

Which statement concerning batteries and fuel cells is incorrect? A fuel cell uses the reduction of atmospheric oxygen as the cathode. A lithium ion battery is a secondary battery…

Which statement concerning protecting metals against corrosion is false? a)A met

Which statement concerning protecting metals against corrosion is false? a)A metal protected by a thin layer of a less easily oxidized metal will corrode even more rapidly if the …

Which statement concerning relative rates of reaction is correct for the chemica

Which statement concerning relative rates of reaction is correct for the chemical equation given below?         2 Al(s) + 6 HCl(g) 2 AlCl3(s) + 3 H2(g) A)the rate of disappearance…

Which statement concerning the S_N2 mechanism is false? It exhibits second-order

Which statement concerning the S_N2 mechanism is false? It exhibits second-order kinetics It occurs in one step The nucleophile attacks from the backside 3^Degrees alkyl halides r…

Which statement concerning the interconversion ofdifferent forms of energy at th

Which statement concerning the interconversion ofdifferent forms of energy at the inner mitochondrial membrane isFALSE? A. The synthesis of ATP from ADP and Pi by the ATP synthase…

Which statement concerning the mole is not correct? Answer A mole of any compoun

Which statement concerning the mole isnotcorrect? Answer A mole of any compound contains one mole of each kind of atom found in that compound. The molar mass of any compound is eq…

Which statement concerning the mole is not correct? Answer A mole of any compoun

Which statement concerning the mole isnotcorrect? Answer A mole of any compound contains one mole of each kind of atom found in that compound. The molar mass of any compound is eq…

Which statement concerning the proton exchange membrane fuel cell is not correct

Which statement concerning the proton exchange membrane fuel cell is not correct? At the anode, hydrogen gas is oxidized to water. The cell uses platinum as a catalyst. A limiting…

Which statement concerning the relative strength of acids is FALSE? A) Strong an

Which statement concerning the relative strength of acids is FALSE? A) Strong and weak acids differ in their extent of proton transfer to water. B) Strong acids are good proton do…

Which statement concerning the step is TRUE? The hydrolysis of ATP provides the

Which statement concerning the step is TRUE? The hydrolysis of ATP provides the energy necessary for the removal of a phosphate group from 1,3-bisphosphoglycerate. The hydrolysis …

Which statement correctly correlates ? or ? bonding atoms and their respective b

Which statement correctly correlates ? or ? bonding atoms and their respective bonding orbitals in formaldehyde? aThe oxygen atom (with its 2s orbital) forms a ? bond with one of …

Which statement correctly correlates ? or ? bonding atoms and their respective b

Which statement correctly correlates ? or ? bonding atoms and their respective bonding orbitals in formaldehyde? aThe oxygen atom (with its 2s orbital) forms a ? bond with one of …

Which statement correctly describes the hydroxyl(-OH) groups found in the steroi

Which statement correctly describes the hydroxyl(-OH) groups found in the steroid prednisone (structure shown) There is one primary alcohol group and one secondary alcohol group. …

Which statement correctly describes the relationship between intermolecular forc

Which statement correctly describes the relationship between intermolecular forces and the normal boiling point for a pure solvent? A) The stronger the intermolecular forces the h…

Which statement correctly describes this ion? (a) The hybridization of N is sp^2

Which statement correctly describes this ion? (a) The hybridization of N is sp^2, the N-O bond order is less than 1 1/2. and the N-S bond order is greater than 1 1/2; the S-N-O an…

Which statement correctly states what is Which statement correctly states what i

Which statement correctly states what is Which statement correctly states what is Which statement correctly states what is "left over" after the ? bonds have formed in formaldehyd…