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- What is number 5?10 20 パ mil il + ZON 202 C2H4 A, 02 Free N02 202 CH2N2デジタル形式で段階的に解決 ありがとう!! SOLVE STEP BY STEP IN DIGITAL FORMAT Structure of Metal Materials: 8. A colleague calculated the density of iron with BCC structure using the following data of atomic radius equal to 1.24 Angstrom and atomic weight of 55.85 as follows: p = [(4 atoms / C. U.) x (55.85 g/atomic weight)/(atoms/atomic weight) / [2(1.24x108 cm)/√2]³ p = 68.8 g/cm³ Is the result obtained logical? Explain and justify your answer.
- Fill in the blanks. Since you cannot input superscripts and subscripts directly, please follow this format: e.g. H20 should be written as H>2O; Fe3+ should be written as Fe^3+; Cr,0,2- should be written as Cr>20>7^2- *> to denote subscript, ^to denote superscript *This is just implemented in our class, for canvas to recognize your answers. You must still understand that superscripts and subscripts are the proper way of writing chemical formulas Please take note of the numbers in the answer box. Formula of Formula of Chemical Formula Name of Compound Cation Anion of Compound K+ Cr20,2- Mg2+ CN Ca2+ PO43-Chrome File Edit View History Bookmarks People Tab Window Help * 30% (4) Sat 2:00 PM Q OE o Chem101 O General Chemistry I (LAB SCI) X + i app.101edu.co EApps MM Gmail YouTube 9 Maps A Translate https://www.carth. 9 Google Chrome isn't your default browser Set as default Question 7 of 7 Submit Using the equations 2 Sr(s) + O2 (g) → 2 Sro (s) AH° = -1184 kJ/mol CO2 (g) → C (s) + O2 (g) AH° = 394 kJ/mol kJ/mol Determine the enthalpy for the reaction C(s) + 2 SrO(s) → CO2 (g) + 2 Sr(s). 1 2 6 C 03.0 Se VHFORMA The MO -Standa 8 AH ma +/- x 100 8T國山電@ O etv Oct 24 MacBook Air 80 888 SC FS F6 F3 F2 %23 2$ & delete 3 5 8. W E R Y U H J к K ret F V M 4-Consider the reaction described by the equation C₂H₂Br₂ (aq) + 31¯¯(aq) · C₂H₂(g) + 2 Br¯(aq) + I₂ (aq) The rate law is rate = k[C₂H₂Br₂][I] where k = 0.00475 M-¹. s-¹. S What are the missing entries in the table? Run [C₂H₂Br₂lo (M) [Ilo (M) 1 0.249 2 3 X 0.249 0.249 y 0.249 Initial rate of formation of C₂H₂ (M-s¯¹) 0.00118 0.000589 Z
- envellum.ecollege.com/course.html?courseld=15432274&HepID=2b3e48e6520860bfd5591538a4a5a27b#10001 Search... Ael. AOL Video- Serving the best vi.. nline Sh... TripAdvisor 33 of 40 I Review | Constants | Periodic Table Learning Goal: To become familiar with the concept and calculations of specific heat. Part A Specific heat (which can be represented as SH, Cs, sp. ht., or a number of other possibilities) is defined as the amount of energy needed to raise the temperature of 1 g of a substance by 1 °C. For example, 0.0920 cal is enough energy to raise 1 g of copper from 21.0 °C to 22.0 °C. Therefore, the specific heat of copper is 0.0920 cal/(g - °C). How much heat energy is required to raise the temperature of 0.360 kg of copper from 23.0 °C to 60.0 °C? The specific heat of copper is 0.0920 cal/(g- °C). Express your answer with the appropriate units. > View Available Hint(s) Using SH for specific heat, the formula for calculating specific heat is HA Value Units heat heat = SH = massxAT P…Na (g) + CI(g) + e 4502 kl/mol 355 kl/mol Na(g) + CI(g) Na*(g) + CH(g) +121 kl/mol Na(g) + 1/2 Cl;(g) ki/mol -786 kl/mol Na(s) + 1/2 Cl2(g) -411 kl/mol NaCI(s) The ionization energy of Na (g) is -411 kJ/mole 502 kJ/mole -355 kJ/mole -786 kJ/moleThe unit of energy in atomic units is given by me 167 eh (A) 1 E, (В) 1 E, 167 m,eh me 167 s,h (C) 1 E, = me (D) 1 E, = 165,h
- 4. In addition to finding the right answer can you explain what is Determinate error (I think the correct answer is the 3rd option here but not sure if right)a sh ta ctr Answers Codes Codes Answers Q1 Digit 1 Q1 Digit 1 LEVEL 1 Q2 Digit 2 Q2 MAKE YOUR ESCAPE! LEWIS DOT STRUCTURES Digit 2 Q3 LEVEL 4 Digit 3. Digit 4 Q4 Q3 Q4 Digit 3 Digit 4 Codes Answers Codes Answers Q1 Digit 1 Q1 DELL Digit 1 LEVEL 2 Q2 Digit 2 Q2 Q3 LEVEL 5 Digit 2 Digit 3 Q3 Digit 3 Name Tuong Nail Colleenk Digital Link: bit.ly/2ODAMG6 Q4 Digit 4 Q4 Digit 4 Codes Answers Q1 Digit 1 LEVEL 3 Q2 Digit 2 Q3 Digit 3 Q4 Digit 4 Congratulations! Enter the completion code to make your escape!Gold has 79 electrons per atom and an atomic mass of 197 u. Part A What is the total charge of all the electrons in 3.1-kg bar of gold? Express your answer to two significant figures and include the appropriate units. µA a xa х.10п b Qtotal = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Check your signs. Part B What is the net charge of the bar? Express your answer with the appropriate units. Qnet = Value Units Submit Request Answer
