M5 Exam

What is the Ksp expression for the ionic compound Li2CO3? A. Ksp = [Li+][CO32-]B. Ksp = [Li+]2[CO32-]C. Ksp = 2[Li+][CO32-]D. Ksp = [Li2CO3]3E. None of the above

69°F Mostly cloudy Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in order of decreasing size. atoms or ions 2+ Be, BB F.F, Ne F, C1, C1 Explanation atoms or ions in order of decreasing size 0.0.0 0.0.0 0.0.0 Check ▬▬▬ Search X 00 S 99+ 4 Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Pri

Salt Formation & Formulas K(s) + Br₂ (8) K (s) Li (s) F2 (g) + F₂ + N₂ (8) Ca + Cl₂ (8) (s) Na 02 (8) (s) + Al (s) + Cl₂ (g) → potassium bromide potassium fluoride lithium nitride calcium chloride sodium oxide aluminum chloride 2 3 4 5 6 7 ΤΑ Using what you know about predicting ion charge, ionic bonding, and the criss-cross technique, write neutral salt product formulas for these synthesis equations. 2A 2 A ú Be 6.94 90122 12 Na Mg 22990 24.305 K C 34 39.00 40.078 44.956 37 87 Fr G B₁ 13291 137.33 charge 3B 4B 5B 6B 7B 8B 9B 10B IIB 12B 3 10 11 12 H (223) (236) 36 53-71 72 73 Hr Ta 74 178.49 180.95 183.84 88 99-103 104 105 P₂ Ra Rf Db Lanthanide series #Actinide series group A num 11 V 47367 50.942 51.996 54.938 43 & Nb Mo Tc Ru Rh Pd Ag Cd CSSE 85.468 87.62 88.906 91.224 92.906 95.95 (9) 75 191.07 102.91 106.42 10787 11241 114.82 118.71 121.76 127 60 17 78 10 81 14 Os Ir P A H₂ 186.21 190.23 192.22 195.08 196.97 20039 204.38 108 109 110 III 112 113 Bh Hs Mt Ds Ca Nh (270) Pb N Pa At…

Q13 In the formation of a compound A2B3, two atoms of A lose three electrons each while three atoms of B gain two electrons each. Which of the following statements is incorrect regarding compound A2B3? A2B3 will be insoluble in organic solvents but soluble in water High temperatures are to be supplied to cause melting and boiling of A2B3 A B2 will have an ordered arrangement of its constituent species A B3 will conduct electricity in the solid- 0 state, molten state as well as in an aqueous solution.

The red color of rubies is the result of a substitution of some Cr³™ ions for Al3+ ions in solid Al203. a. Using noble gas notation, write the electron configuration for the Chromium atom and the Cr3+ ion. 3+ b. is the Crt ion para- or diamagnetic? Would it be attracted a magnetic field? c. Compare the radius of the Cr" ion to a neutral Cr atom; which would have a larger radius? Explain your answer in at least one sentence that mentions effective nuclear charge.

1)How many outer-shell electrons do each of the atoms have? Rn Ga C Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese(IV) oxide. 4HCl(aq)+MnO2(s)⟶MnCl2(aq)+2H2O(l)+Cl2(g) A sample of 42.1 g MnO2 is added to a solution containing 49.9 g HCl. What is the limiting reactant? MnO2 or HCl 2) What is the theoretical yield of Cl2? theoretical yield: 3) If the yield of the reaction is 80.5%, what is the actual yield of chlorine? actual yield: 4) For the chemical reaction shown, 2H2O2(l)+N2H4(l)⟶4H2O(g)+N2(g) determine how many grams of N2 are produced from the reaction of 8.06 g of H2O2 and 5.39 g of N2H4. N2 produced:

Using the periodic table as a guide, predict the chemical formula and name of the compound formed by the following elements: Ga and F  Li and H K and S Ca and Br K and CO32- NH4 and SO42- Mg and NO3 -1 Fe and OH-1   Give reasoning of the following questions:   a) A compound has formula CaX2. If anion of X has 18 electrons, what element is X? Which family does it belong to?       b) A compound has formula X3N2. Which group does X belong to? What is the charge on the ion of X?     c) A compound has formula X(NO3)3. If the cation of X has 12 electrons, what element is X?   Name the following compounds: LiNO3 Sc2O3 NF3 Ag2SO4 PF5 NaI SCl2 Ca(NO3)2 FeCl3 N2O4 HClO4 (aq) Na3P

Using the periodic table as a guide, predict the chemical formula and name of the compound formed by the following elements: Ga and F  Li and H K and S Ca and Br K and CO32- NH4 and SO42- Mg and NO3 -1 Fe and OH-1   Give reasoning of the following questions:   a) A compound has formula CaX2. If anion of X has 18 electrons, what element is X? Which family does it belong to?       b) A compound has formula X3N2. Which group does X belong to? What is the charge on the ion of X?     c) A compound has formula X(NO3)3. If the cation of X has 12 electrons, what element is X?   Name the following compounds: LiNO3 Sc2O3 NF3 Ag2SO4 PF5 NaI SCl2 Ca(NO3)2 FeCl3 N2O4 HClO4 (aq) Na3P Write the chemical formulas for the following compounds aluminum hydroxide potassium sulfate copper (I) oxide zinc nitrate mercury (II) bromide iron (III) carbonate sodium phosphate cobalt (II) nitrate copper (II) perchlorate bromic acid dichloroheptaoxide chromium (III) nitride sulfuric acid lead(IV)…

1-An atomic cation with a charge of +2 has the following electron configuration: [He] 2s22p4 What is the chemical symbol for the ion?   How many electrons does the ion have?   How many 2s electrons are in the ion?       2-   Ammonium perchlorate (NH4ClO4) is powerful solid rocket fuel, used in the Space Shuttle boosters. It decomposes into nitrogen (N2) gas, chlorine (Cl2) gas, oxygen (O2) gas, and water vapor, releasing a great deal of energy. Calculate the moles of chlorine produced by the reaction of 0.90mol of ammonium perchlorate. Be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits. _____________ 3-How many protons and neutrons are in an atom of Th-229 ? Number of protons= ________ Number of neutrons= _______       4-  The chemical formula for beryllium sulfide is BeS. A chemist determined by measurements that 0.055 moles of beryllium sulfide…

19 of 44 > © Macmillan Learning In the given three-dimensional molecular structure, the differently colored spheres represent different types of atoms. Write a molecular formula for this molecule. molecular formula: 4 R % 67 68 5 1 SPECIAL xº (g) ΔΣΩ λμπ X₁ X () 6 [] (s) Y (1) (aq) →>>> MacBook Pro The 11 7 U t CLR 8 K →>> 9 Rotate X You 9 Rotate Y ( 0 ☐C □H D Rotate Z 0 Zoom In P O Zoom Out Attempt A Label Atoms C

esc →> Docun X 77°F Mostly cloudy ? W 2 Argum X https://app.101edu.co 3+ Use Coulomb's law to calculate the energy in aJ of the following ions to their equilibrium ion-pair separation distance: Fe³+ with radius 55 pm and P3 with a radius of 212 pm. # Life: Th X 13 * 3 f4 $ 101 223.pd X M MyOpe X 4 f5 % Q 5 D21 Home X Feedbe X Archive | Login A1 f6 Question 6 of 35 6 E hp & 7 18 * 00 19 D W 1 4 ho

NaCl is a composite material because it has both Na and Cl. True or False?

How many p electrons does Sn2+ have in its outer shell?Select one:2 4 1 3 0

Which of the following ions has the largest radius?      Br-     S2-     B3+     Mg2+     Li+

Predict the formula for a compound made from X+ and Y. Insert subscripts as needed. formula: XY SPECIAL ΑΣΩ (s) (1) (aq)

(b) Consider the following energy changes:

Task 1: Write the full electron configurations of the following substances Oxygen atom: Oxide ion: Sn++: Task 2: Draw the Lewis structure of the following compounds and determine the total number of valence electrons in each structure. 03²- Total number of valence electrons:

Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in order of decreasing size. atoms or ions + Mg, Mg, Na 2+ Ca Ba, Ca 2 Be, O, C atoms or ions in order of decreasing size 0.0.0 0.0.0 0,0,0 X Ś

The following two structures show the electron arrangements for two ions, N3 and NO₂. -N=Ö =N :0 Indicate whether their shapes are closest to the shape caused by 2, 3, or 4 balloons. Using sticky notes, put a nitrogen note at the center of the balloon shape as shown. N :0 N Answer Bank N

(ELECTRONIC STRUCTURE AND CHEMICAL BONDING Understanding periodic trends in effective nuclear charge Rank the effective nuclear charge Z experienced by a valence electron in each of these atoms: atom An atom of palladium. An atom of molybdenum. An atom of cadmium. An atom of niobium. z experienced by a valence electron. (pick one) (pick one) (pick one) ✓ (pick one) X Ś

Re-order each list in the table below, if necessary, so that the atoms or ions in it are listed in order of decreasing size. atoms or ions + Mg, Mg, Na F, C1, C1 Kr, Br, Br atoms or ions in order of decreasing size 0.0.0 0,0,0 0.0.0 X Ś

How many protons(p), neutrons(n), and electrons(e) does the following ion have?   P3-  Group of answer choices 31p, 15n, 15e 15p, 16n, 18e 15p, 16n, 12e 15p, 16n, 15e

A neutral object is sketched below, in black and white. There are positive and negative electric charges inside this object, and at least move around. Now suppose a negative charge comes close to this object, as shown in the sketch. Shade the object red anywhere you expect it to become more negatively charged, and shade the object blue anywhere you expect it to become more positively charged. Start over ol 9

People Tab Window Help d Tap - Cengage Learning vo/index.html?deploymentld%3D55750828934189288909969212&elSBN=9781305657571&nbld%3D2199 NDTAP Use the References to access important values if needed for this question. Predict the larger ion in each of the following pairs. (a) Br or Rb+ (b) Co+ or Co2+ (c) Sor S2- (d) I or Br

Arrange the ions from largest to smallest. Br Mo6+ Rb+ Se²- Largest ionic radius Smallest ionic radius Answer Bank Y³ +

How do Group VIA elements form ions? A) They lose protons B) They gain two protons C) They lose two electrons D) They gain two electrons Which substance consists of anions and cations? A) CaF2, Calcium Fluoride B) Br2, Bromine C) Ag, Silver D) SiO2, Silicon Dioxide A newly discovered element is assigned to Group VIIA (Group 7A) in the periodic table. What charge will ions of this new element have? A) 1-    B) 2-    C) 1+    D) 2+ Reactions occur when atoms, ions or molecules collide. In a reaction between magnesium and bromine atoms, how many atoms of bromine will react per atom of magnesium? A) 1   B) 2   C) 3   D) 4 Which compound exists as a solid crystal lattice of cations and anions at room temperature? A) BrCl    B) CaCl2    C) SCl2    D) SiCl4

Chapter 6-HW Est. Length: 2:00:00 Which of the following is the correct formula for the ionic compound that would form between calcium and phosphorous? O a) Ca3 P2 Ob) Ca₂ P3 c) Cap Arceli Lopez Lopez: Attempt 1 Od) Ca3 P Oe) Ca₂ P X

Select the most acidic hydrogen in the molecule below. Gray = C; white = H; red = 0; blue = N; dark green = Cl; brown Br; light green = F; purple = 1; yellow = S; orange = P. • Double click to select atoms. ● ● ● ● You can zoom in and out using the mouse scroll wheel (or pinch to zoom on touch screens). If there is more than 1 correct answer, just give one. Formal charges are not shown. You will need to deduce them from structure.

1.5 Two SPHA032 students were arguing during lunch at the university of Limpopo cafeteria about whether Niobium (Nb) is a BCC or FCC structure. In order to help them resolve their argument determine yourself whether Niobium is BCC or FCC by calculating the density of Nobium given that its density is 8.57 g/cm³ with radius 1.43 X 108 cm, and its atomic weight is 92.91 g/mol. Use provided constants and the periodic table attached