Chemical Bonding Questions and Answers

Considering orbital penetration, within an "n" level of a multi-electron atom, list the orbital sublevels from lowest to highest energy. Lowest energy highest energy d<p<f<s s<p<d<f s<p<f<d f<d<p<s all orbital types have the same exact energy within each sublevel

25. What is the general form of a chemical reaction? (ie. Where are the reactants, products, arrow) 26. What is evidence that a CHEMICAL reaction has occurred? What does this imply about your reactants as compared to your products?

What type of intermolecular force(s) is being shown in this diagram? How many opportunities does water have to hydrogen bond?

The following questions all pertain to intermolecular forces. Please answer each question. a. Rank the three intermolecular forces from weakest to strongest. b. What types of intermolecular forces are present on each of the following molecules: You will need the Lewis Dot Drawings and Polarity information from questions 4 and 5. i. Cl₂ ii. O₂ iii. CH4 iv. NH3 V. H₂O vi. HF

Evaporation of water from ocean is _. an endothermic change an exothermic change a chemical change a sublimation reaction

What type of compounds (IONIC OR COVALENT) are sugar (C6H12O6), ammonia (NH3), water (H₂0) and butane (C4H10)? Why is sugar a solid at room temperature yet ammonia is a gas? Why does water boil at a higher temperature than butane?

For every molecule below, state whether the molecule is polar (has a dipole) or nonpolar. Look for symmetry - a sign of being NONPOLAR! A lone pair on the central atom generally leads to polarity or having a dipole. i. Cl₂ ii. 02 iii. CH4 iv. NH3 v. H₂O vi. HF

Which of the following equation has increased entropy? 2HI(g) → 2H₂(g) + 12(S) 2H₂(g)+ O₂(g) → 2 H₂O(g) CO2(g)+ CaO(s) —> CaCO3(s) 4NH3(g) + O2 (g) -->2N₂(g) + 6H₂O(g)

Which of the following is the correct order of increasing boiling points of substances? NaCl<CO₂<CO<HF OHF<NaCl<CO₂<CO CO₂<CO<HF<NaCl CO<HF<NaCl<CO₂

Draw the structure of Sulfur Dichloride and write it's formula.

Three possible structures for isocyanic acid, HCNO, are shown below. H-C=N-O: Structure (1) H-C-N=O: Structure (II) H-C=N=O Structure (III) 11 Fill in the blanks by select one option from each men ab Part 1: 2 points ab Part 2: 2 points aby Part 3: 2 points ab Part 4: 4 points 10 points Determine the formal charge for each atom in each structure. Then answer the following questions. What is the formal charge on O in Structure (I)? What is the formal charge on C in Structure (II)?| ✓ What is the formal charge on N in Structure (III)? On the basis of formal charge, which is the 'best' structure?

Assuming that the separation between cations and anions in the lattice is nearly identical, which species would have the greatest lattice energy? sodium chloride calcium nitride Osodium oxide calcium oxide calcium chloride

Dr. Laila Malik has been tasked to help her graduate student with making a ground-breaking molecule, but she has to start with helping the student understand how different elements bond to each other and the characteristics they have. Help Dr. Malik identify whether the following compounds are ionic or covalent: LiBr (A) lonic (B) Covalent

An 801. g solution of Kool-Aid contains 392. g of water. What is the mass percent of Kool-Aid mix in this solution? % de Provide an answer in 3 significant figures.

Come soluble compounds are listed in the table below. Complete the table by filling in the name or chemical formula of each compound, whichever is missing. (If there is more than one way to name the compound, Choose the name used when the compound is dissolved in water.) Also classify the compound using the checkboxes. compound name acetic acid potassium chlorate mmonia hydrochloric acid type of compound (check all that apply) lonic molecular strong weak strong weak acid base base acid 0 0 U ☐ 0 O U X ?

To explain the covalent bond formation, valence bond theory is well known. Which of the following statement(s) is/are true? The covalent bond is formed due to the overlapping of two orbitals containing two unpaired electrons with the opposite spins The 'p' orbitals forming T-bond should have same sign with orientation in space Valence bond theory was not able to explain the paramagnetic nature of O2 It is possible that a covalent bond can be formed by the overlap of an electron filled orbital with vacant orbital

Question 5 (2 points) Two new elements have been discovered, serpentine (Ss) and draconine (Dr). Serpentine has been shown to contain 4 valence electrons while draconine has been shown to display 6 valence electrons. Additionally, it has also been shown that serpentine is more electronegative than draconine and that together they form the molecule SsDr₂. Based on this information, determine whether SsDr₂ is polar or non-polar. Justify your response using your understanding of structure and debye force. You may submit a drawing if it helps you, but it is not required.

Two new elements have been discovered, serpentine (Ss) and draconine (Dr). Serpentine has been shown to contain 4 valence electrons while draconine has been shown to display 6 valence electrons. Additionally, it has also been shown that serpentine is more electronegative than draconine and that together they form the molecule SsDr₂. Based on this information, determine whether SsDr₂ is polar or non-polar. Justify your response using your understanding of structure and debye force. You may submit a drawing if it helps you, but it is not required.

Madison pushes with a 170-N horizontal force on a 16-kg crate of coffee resting on a warehouse floor. The force of friction on the crate is 88 N ▾ Part A Find the acceleration. Express your answer to two significant figures and include the appropriate units.

If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the structure Y-X-Y could be abbreviated as XY.Z₂. Classify each molecule according to its shape. Linear Bent (≈ 120°) Bent (109) Trigonal pyramidal T-shaped See-saw Square planar Square pyramidal

Using the balanced chemical equation, determine how many moles of NaCl will be produced, if 0.525 mol of BaCl₂ is allowed to react with an excess of Na₂SO4. moles of NaCI: Using the moles of NaCl found in the previous question, determine how many grams of NaCl can be produced. mass of NaCl: 1.05 formula units: Incorrect Using the moles of NaCl found in a previous question, determine how many formula units of NaCl can be produced. Incorrect mc

2 Al + 3Cl₂ → 2 AlCl3 - How many moles of Cl₂ molecules are required to react with 3.62 mol Al atoms? moles of Cl, required: 6.155 Call be described by the balanced chemical equation. Incorrect mol C

If I drop a watermelon from the top of one of the tower dorms at CSU, and it takes 2.34 seconds to hit the ground, calculate how tall the building is in meters. O a O O O O b C P 26.83 m 11.47 m 56.18 m 22.93 m E

Below is the balanced chemical reaction for the synthesis of Manganese (VI) Chloride: Mn (s) + 3Cl2 (g) → MnCl6 (s) Given 4.5 moles of Chlorine, how many moles of Manganese (VI) Chloride can be made? Answer with 2 sig figs.

Be sure to answer all parts. Predict the bond angles around the indicated atoms in the compound. Be sure to consider lone pairs where needed to give complete octets. (1) H H*C+F (1) (2) H (2)

Choose the sentence that is capitalized correctly. Tom was invited to a special dinner hosted by james at the Baleen Restaurant in Miami. Tom was invited to a special dinner hosted by James at the Baleen Restaurant in Miami. Tom was invited to a special dinner hosted by James at the Baleen restaurant in Miami.

Identify the sentence with the correct use of apostrophes. He didn't say when he would arrive at Arnie's house. He didn't say when he would arrive at Arnies house. O He didnt say when he would arrive at Arnies house.

Which of these sentences is correctly capitalized? During our stay out in East, we met with Congressman Ron, and we enjoyed trekking the North Arctic. During our stay out in east, we met with congressman Ron, and we enjoyed trekking the north Arctic. During our stay out in East, we met with congressman Ron, and we enjoyed trekking the north arctic.

Choose the sentence which is capitalized correctly. At Robert Joseph High School, students are expected to wear a uniform on Mondays. O At Robert Joseph high school, students are expected to wear a uniform on Mondays. At Robert Joseph high school, students are expected to wear a uniform on mondays.

Which of the following statements is not true? Multiple Choice A molecule that is superimposable on its mirror image is said to be chiral. dm₁ A molecule that is not superimposable its mirror image is said to be chiral. A carbon atom bonded to four different groups is a stereogenic center. A molecule that is superimposable on its mirror image is said to achiral.

Page 20 of 22 These models show molecular geometries only. Non-bonding electron domains cannot be seen. The yellow colored balls are different atoms than the atoms represented by the white balls. Make sure you first identify what models must have non-bonding electrons! Click on ALL of the models that would make polar molecules.

Xenon can be the central atom of a molecule by expanding beyond an octet of electrons. Draw Lewis structures for the given xenon compounds. Show all lone pairs.

How much energy (in J) is needed for an electron in an hydrogen atom transition from the Bohr orbit of n₁ = 4 to n₂ = 6? Given the constant k for hydrogen is 2.179 × 10-18 J.

Applying the subject-verb agreement rules, find the sentence that has an agreement error. When Gina reached the party venue, none of her friends were there. O The latest books on fossils that I bought at the fair is on my desk. O Unfortunately, the quality of the candies that Richard prepared is not good.

If an electron travels at a velocity of 1.3 x 107 m/s and has a mass of 9.109 x 10-28 g (1 kg = 1000 g). What is its wavelength in m? Given Planck's constant is 6.626 * 10-34 Js. (Answer in scientific notation. Example: 1.23 x 10-4 = 1.23*10^-4) Type your answer

A student used the HALF-REACTION METHOD to balance the redox reaction (shown below) in an acidic solution. What are the half-reactions involved? Select ALL that * apply. (1 Point) MnO(s) + PbO2 (s) > MnO4 (aq) + Pb²+ (s) MnO + H₂O -> MnO + H+ 4 MnO -> MnO4¯¯ MnO4 -> Mn²+ + 2e- ■ PbO₂ -> Pb²+ ■ Pb²+ + O₂ -> PbO2

What type of mixture is fog? OA. A homogenous mixture of a liquid in a gas OB. A heterogeneous mixture of a solid in a gas OC. A homogenous mixture of a solid in a gas OD. A heterogeneous mixture of a liquid in a gas

3 Select the correct answer. What is a substance? a uniform mixture that can't be separated OB. a mixture that can be separated OC a single component that can't be separated OD. a single component that can be separated OA

For each of the following molecules determine a (1) valid Lewis structure, (2) resonance structure if necessary, (3) Electron Pair-Shaped name (EPSN), (4) Bond Angles, (5) Molecular Shape Name (MSN), (6) draw a 3D structure with polarity arrows, and (7) specify if the molecule is polar or nonpolar.

Consider HSF and HOF in the liquid state. Select the best answer to the following questions. a) Give the intermolecular forces in HSF. [Select] b) Give the intermolecular forces in HOF. [Select] c) Which will have the stronger intermolecular forces? [Select] d) Which will have the lower viscosity? [Select]

What is the correct ELECTRONIC GEOMETRY and MOLECULAR GEOMETRY around the central nitrogen in NH3? (Hint: You may need to draw the Lewis structure of the molecule.) a) trigonal planar, bent b) tetrahedral, trigonal pyramidal c) linear, linear d) tetrahedral, tetrahedral

If element 119 were to be synthesized and verified, which electron configuration would follow the established patterns on the Periodic Table? [0g] 8s¹ [Og] 8s²6f¹47d¹º8p6 [Og] 8s² [Rn] 7s¹

1.0 g of Br2 and 50.0 mL of methylene chloride (l) Drag the terms on the left to the appropriate blanks on the right to complete the sentences.

How would you explain the difference between -ide and -ate? For example, how are chloride and chlorate different?

On the last page are attached the approximate orbital energy diagrams needed for the next several exercises involving hybridization (LCAO) and diatomic molecules or molecular ions. 8. Complete the hybridizations for the 3 carbons in CH₂CH=CH₂ complete the Lewis structure

Draw the Lewis dot structure of CH3F and answer the following: Only Lewis structures that obey the octet rule (or duet for H) will be counted as correct in this class. • Number of total valence electrons = • Describe the Lewis structure around the central atom, C: valence electrons • Describe the Lewis structure around the fluorine atom: • Describe the Lewis structure around each hydrogen atom (all should be the same):

Determine the formula unit and name for the compound formed when each pair of ions interacts. In the formula, capitalization and subscripts are graded. Spelling counts.

Match each description with the VSEPR molecular geometry. All descriptions are of the regions around the central atom. (ER = electron region; ERG = electron region geometry; MG = molecular geometry; LP = lone pair; BA= bonding area) 1 BA between 2 atoms 4 ER (as 2 LP + 2 BA) or 3 ER (as 1 LP + 2 BA) 3 ER consisting of 0 LP and 3 BA 4 ER consisting of 1 LP and 3 BA 4 ER consisting of 0 LP and 4 BA

A solution contains 0.25% (w/v) Xanax. (a) What is its concentration in mg/cc? How many milligrams of Xanax can be obtained from 3.00 cc of this solution? Show your work and report your answers to 2 significant figures. (5 pts)

Which is the shape of the orbital where the last electron in gallium (Ga) is placed into? spherical oval dumbbell (2 lobed) 4-leaf clover type (usually 4 lobed) most complicated shape on the periodic table