Add Text Here! 11. The only nonmetal in group 1. 12. Responsible for the smell of rotten eggs. Hint: it has 16 protons. Add Text Here! Add Text Here! Add Text Here! 13. Has an atomic number that doubles silicon's. 14. The fint element in the group of rare carth metals. 15. A group 12 metal that was once used in thermometers, but is now known to be poisonous. Add Text Here! Add Text Here! Add Text Here! 16. Has 3 valence electrons and 4 energy levels. 17. The only metalloid in period 3. 18. The only metalloid with 3 valence electrons. 19. The alkali metal that makes up table salt. Add Text Here! Add Text Here! Add Text Here! 20. Its most common isotope has 5 neutrons.

Step 2: Identify the dimensions of the quantities involved The second step is to identify the dimensions of the quantities involved in the problem. For example, if the problem involves distance, time, and velocity, the dimensions of these quantities would be length, time, and length/time, respectively. Step 3: Check if the units cancel out The third step is to check if the units cancel out. To do this, multiply the quantities together and check if the units cancel out, leaving only the desired unit. For example, if you are trying to find the velocity of an object and you know its distance and time, you can multiply distance by time to get velocity. If the units cancel out, you have a physically meaningful result. Step 4: Check if the result makes sense, to do this compare the units of the result with what you would expect based on the Robles statement.   Using the step hints above, answer the question. You do not have to solve. Just imagine that you're teaching a friend how…

45. | You find that if you hang a 1.25 kg weight from a vertical spring, it stretches 3.75 cm. (a) What is the force constant of this spring in N/m? (b) How much mass should you hang from the spring so it will stretch by 8.13 cm from its original, unstretched length?

1.) PhgP H. F3C Br b.) H. F3C H. F3C Br Br F3C Br d) e) F3C F3C Br

Chrome File Edit View History Bookmarks People Tab Window Help Hcc Dashbc x E Buy Es: x G find so x © Periodi x A ALEKS X HUc Chapte x E New m x G conver X 不→ C A www-awn.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNsIkr7j8P3jH-IQiHqRdYV_6Ux63SypJXz0Coxvwqgg4JkWI7FgD9QGpr.. O GASES O OC D Jacqueline v Using Avogadro's Law Hydrogen gas and nitrogen gas react to form ammonia gas. What volume of ammonia would be produced by this reaction if 7.5 m of nitrogen were consumed? Also, be sure your answer has a unit symbol, and is rounded to 2 significant digits. 圖 中 ロ alo olo

are the tables above correct?

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-

020-012 x X Chemsto updates late werKs O Empower 2021 A educate.lindsay.k12.ca.us/iFrame aspx?iCtrl=STUDENT BASE HOME CONTROL Oy * Bookmarks DE IXL B Classes E Google Slides O Empower 2020 E E Google Docs Lindsay High School Physics Safety & Ski. E Guided practice 3 ( ENERGY LEVELS ELEMENTS 1-20 CAO NITODEN ONTOEN MEDN ALIMM SJOON 14 PHOPHOR CHLOFINE 17 ARGON 12 POTABE CALCUM 20 In an ionic bond, a metal atom loses electron(s) and a nonmetal gains them. What type of ion would Sulfur (S) become if it was bonded to a metal? O A. 1- ion O B. 1+ ion OC 2 ion O D. 2+ jon DELL F10 Hom F11 PrScr F12 tevsert F2 F3 F4 F8 @ %23 & フ 3 E T F G H K C B Mo Alt Ct Alt

I have calculated this problem various times, but every time I input the answer into the assignment it says it's wrong, I can't find the issue. What could it be?