Unit 2 - Inv

Analysis: What is an ion? Describe what happens to the electrons in an atom when they absorb energy (from the flame)?  Why does this produce a bright-line emission spectrum (rather than a continuous spectrum)? In terms of atomic structure, why does each metal ion produce a different color flame? What difficulties are there in identifying metal ions with a flame test?  How could you improve the specific identification of the metal ions during a flame test? If it can be determined from the flame test results, what are the identities of the two unknown liquids? What might be some practical (and exciting) applications of metal containing compounds that create different colors of light while burning?  Explain.

4. Describe how energy that came to Earth many years ago in the form of radiant energy can be used today to create music in your radio.

mHMAC3ccdb6aa11676716c83835709749d96e5#10001 Translate Reading list 1 of 11 I Review | Constants Periodic Table Part A Julia spent $50 on a book. The cost of the book was $18 less than twice what she spent on a backpack. How much did the backpack cost? Express your answer numerically in dollars. • View Available Hint(s) Hint 1. Identify the mathematical equation Hint 2. Identify the expression for the cost of the backpack

Use the Internet to research what CuCl, and Cu(SO,) look like. Then, suggest a chemical test you could perform that would allow you to distinguish between hydrochloric and sulfuric acids (HCI and H,(SO,)). Explain the test you would perform and the results you would expect in each case. MacBook Air F4 5 6

I am currently in Anatomy and Physiology 101. We are in the Chemistry section of our lab book, and I came across a question I wasn't too sure about. The question is; "Do metals donate or accept electrons? What do they become after they donate/accept electrons?" For this question I put that metals both accept and donate elcetrons, and after this they become Ions. Is this correct?

Blank 1 are alkali and alkaline earth metals (primarily calcium, magnesium, potassium, and sodium) capable of exchanging electrons with other positively charged ions in soil solutions. Blank 1 Add your answer

Static Static electricity is observed when whic part of the atom is transferred? a. Protons b. Neutrons I Electrons С. Naturally occurring static is observed in a. Thunder b. Lightning Wind с. speaker notes areer investig docs Career inve stig docx Career Investig

Which elements and properties did Mendeleev examine when he predicted the properties of eka-aluminum and eka-silicon? Be specific and methodical. This will help you with completing this lab. -20-

gANSULNorth Screenshot 2020-11-15 at 10.56.... O O Q Q Give the formula of a negative ion that would have the same number of electrons as each of the following positive ions. (Limit your answers to ions with a net charge of negative 3 or less.) a. Na+ possible negative ion: b. K+ possible negative ion: с. АЗ+ possible negative ion: d. Rb+ possible negative ion: Submit Answer Try Another Version 2 item attempts remaining O 10:57

Why when atom loses electrons it becomes positively and not negatively charged? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). B IU S Dar

Q-11. Copper Sulphate (a) + Iron → Iron Sulphate (b) + Copper Write the colour of 'a' and 'b’ respectively.

V Student Portal - Seattle x C Clever | Portal E Class Score Detail 9 Schoology N Chemistry A - Period 6 x A districtims.seattleschools.org/common-assessment-delivery/start/4732295265?action3Donresume&submissionld%=D443170581 Use the pictures below to the answer question. Choose the two elements located on the second group (column) of the periodic table O 3 O 4 O 5 O 6 Schoology- Googl. O O O 0 O O

Please paste a picture of lithium and fluorine on gizmos if you cant do that to i will delete the app because each tine i ask a question you guys say sorry we can not solve this question… why did i paid money for you guys if you cant solve anything!!?

A Moving to another question will save this response. Question 5 WE This equation represents the formation of a typical ion from which group of the Periodic Table ? M: M²+ + 2 e² OA. 1A OB. 2A O C. 3A OD. 6A A Moving to another question will save this response. Class Lab Session....docx ^ PDF Document5.pdf PDF LAB3.pdf OLD H JA

Start your trial now! FlPSt Week only $4 Chapter 4, Problem 4.24EP Textbook Problem Give the chemical symbol for each of the following ions. a. A chlorine atom that has gained one electron b. A sulfur atom that has gained two electrons c. A potassium atom that has lost one electron d. A beryllium atom that has lost two electrons Expert Solution

How would you fill this out and answer these questions for Copper penny turning green?

Critically discuss the relationship between a lithium and justice with real life example. (explain different perspectives)

Third Math X Microsoft T x Microsoft Te x DOCX File v X 4. Personal - → C A app.edulastic.com/student/assessment/60525b29af74cf0008c2b68f/class E- > NEXT Question 17/19 A BOOKMARK 17 Use the image of a partial periodic table to answer questions 17, 18 and 19. 18 2 Не H. 1 Hyder 2 Hellum 4.00 101 13 14 15 16 17 4. 6. C 8 10 Ne 2. Li Be B N F Lthum 694 Berylum Borge Carton 10.81 1 12.01 Devgen 16.00 Puine Neon 20.18 9.01 14.01 19.00 11 12 13 14 15 16 17 18 Ar Na Mg sum 24.31 Al CI 3. Sodum 22.99 Si See 26.09 Aumin Argon 39.95 Cherine 3. 30.97 26.98 32.06 15 45 19 K 31 20 21 32 Ge 33 As 34 Ca Sc 35 Br 36 Kr Ga Caum 69.72 Se ... Protacsum 39. 10 Caldum 40.08 Arsenir Sele Bromine 44.96 72.63 74.92 78.97 79 90 3.80 38 37 Rb 39 Y. 49 50 Sn 51 Sb 52 53 54 Sr In Te Xe ... Srentium erum due 114.82 emony Taluum Jodine 5.47 87.62 118.71 121.76 127.60 126.90 131.29 Which elements have more protons per atom than phosphorus? bromine and sulfur B helium and nitrogen nitrogen and sodium sodium and…

(PLEASE ANSWER QUICKLY/CORRECTLY THANK UUU) The characteristics of two different types of reactions are shown below:Reaction A: Protons are gained or lost by the atom of an element.Reaction B: Electrons are lost by the atoms of an element.Which of these statements is true about the two reactions?  Valence electrons are not involved in both Reaction A and Reaction B.  Valence electrons are involved in Reaction B but not in Reaction A.  Valence electrons are involved in both Reaction A and Reaction B. or  Valence electrons are involved in Reaction A but not in Reaction B.

Chemistry How many shielding (core) electrons does argon possess? (it is not 8)

Why do most metals make good electric conductors? A Metals have low specific heat. B Metals attract positive ions. C The electrons in metals flow easily between atoms. D The nuclei of metals easily donate protons.

6) A torch bulb glows with a current of 2.25 A for 24 minutes, what is the charge flowing through it?   a.   32.40 C   b.   3240 C   c.   32400 C   d.   324.0 C

What effect does the ozone layer have on the EM waves from the sun? What is currently threatening the ozone layer? Describe the greenhouse effect occurring in Earth's atmosphere? I

M Apple Google Disney ESPN Yahoo! Biomedical Careers Program ☆ CATEG WHOS r B r SLIVET H₂ (9) + F2(g) → 2HF(g) PC15 (9) → PC13 (9) + Cl₂ (9) CO₂(g) + H₂(g) → CO(g) + H₂O(g) Apple iCloud Yahoo Images Bing Google Wikipedia Facebook Twitter D2L b G 3 2H₂O2 (1) → 2H₂O(1) + O2(g) prod03-cnow-owl.cengagenow.com 2CO2(g) + 5H2(g) → C2H2 (9) + 4H₂O(g) D2L VULLI CETURT JU D2L LITUNTUT T Clear All AS > 0 AS < 0 COWLv2 |... b too close to decide SISS LinkedIn The Weather Channel Yelp TripAdvisor C M G с G C VVIML. + 88 M

You electrically charge a plastic rod by rubbing it against fur. You then place the rod near a few little pieces of paper and the pieces of paper stick to the plastic rod. Explain why this happens. Think of what happens to the charge inside of the pieces of paper.     The charged rod transfers electrons to the pieces of paper, creating charge unbalance.     The excess negative charge on the plastic rod attracts the negative charges in the pieces of paper, causing charge polarization.     The charged fur transfers electrons to the pieces of paper, creating charge unbalance.     The charged paper transfers electrons to the rod, creating charge unbalance.     The charged rod transfers protons to the pieces of paper, creating charge polarization.     The paper is a naturally charged object so it is attracted by the plastic rod.     It is impossible to determine because we don't know the amount of charge on each.