Iron ore is reduced to pure iron by smelting, during which the iron (III) oxide in the ore reacts with carbon monoxide gas, like this: Fe,0;(s)+3C0(g) → 2Fe(s)+3CO,(g) Suppose an engineer decides to study the rate of this reaction. She prepares four reaction vessels with 173.9 g of solid iron (III) oxide and 13.4 g of carbon monoxide gas each. The volume and temperature of each vessel is shown in the table below. Arrange the reaction vessels in decreasing order of initial rate of reaction. In other words, select a "1" next to the vessel in which the engineer can reasonably expect the initial rate of reaction to be highest, a "2" next to the vessel in which the initial rate of reaction would be next highest, and so on. initial rate of vessel volume temperature reaction A 5.0 L 1200. °C B 5.0 L 1000. °C 5.0 L 1100. °C 5.0 L 1300. °C >

I’m really confused on figuring out valence electrons.  How do I figure how many valence electrons are and how many total electrons there are?

Order in which shells, sub shells, and orbitals are filled.

For each corresponding letter, please name the element symbol

10. Describe three different types of orbits.

Which of the following is a reasonable criticism of the Bohr model of the atom?   a.) It does not adequately predict the ionization energy of the valence electron(s) for elements other than hydrogen   b.) It does not adequately predict the line spectrum of hydrogen.   c.) It shows the electrons to exist outside of the nucleus.   d.) It makes no attempt to explain why the negative electron does not eventually fall into the positive nucleus.   e.) It does not adequately predict the ionization energy of the first energy level electrons for one-electron species for elements other than hydrogen.

Q2 which of the following represent impossible combinations of n and 1? a. 1p, (b) 4s, (c) 5f, (d) 2d

5735112480241329813180832311&elSBN=9781305862883&id=1707785907&snapsho For each of the following: Use the References to access important values if needed for this qu a. Does the element have allotropes? b. Does the element form diatomic molecules? 1. Calcium 2. Carbon References a. yes v a. yes v 3. Bromine a. yes v 4. Magnesium a. yes ✓ Submit Answer b. no v b. no b. no b. nov

Help with this pls In YOU OWN WORD  August 19, 2020's Google Doodle celebrated the 190th birthday of Lothar Meyer.  Write a single paragraph detailing Lothar Meyer's contribution to the development of the periodic table.  As part of that paragraph discuss how his table differed from Mendeleev's

Tissues Flashcards ... GBiology: Prefixes, S... Q Mastering A & P Ch... hp Axial and Appendic... Pearson Review | Constants | Periodic Table Select the correct electron-dot formulas. You can refer to the periodic table if necessary. Check all that apply. View Available Hint(s) 82°F 4)) 9:24 AM 7/13/202