Mayle

part of the earth
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 * 1) Nickel and iron
 * 2) Mantel
 * 3) mantel
 * 4) Pangaea
 * 5) Lithosphere
 * 6) Ridge
 * 7) When plates run in to each other it makes a mountain
 * 8) When the plates move apart it forms a subduction
 * 9) Plates moving a part
 * 10) When the plates come together

mineral


 * 1) Barite, beryl, bornite, brookite, borax.
 * 2) Hardness, color, texture
 * 3) Carbonates, oxides, sulfides

the lab question
 * (No data table = -10) **
 * 1) Chemical
 * 2) The color change
 * 3) <span style="direction: ltr; font-family: Calibri; font-size: 11pt; font-style: normal; font-weight: normal; margin-bottom: 0px; margin-left: 0.375in; margin-top: 0in; unicode-bidi: embed; vertical-align: middle;">It turned black
 * 4) <span style="direction: ltr; font-family: Calibri; font-size: 11pt; font-style: normal; font-weight: normal; margin-bottom: 0px; margin-left: 0.375in; margin-top: 0in; unicode-bidi: embed; vertical-align: middle;">Yea it didn’t fall out
 * 5) <span style="direction: ltr; font-family: Calibri; font-size: 11pt; font-style: normal; font-weight: normal; margin-bottom: 0px; margin-left: 0.375in; margin-top: 0in; unicode-bidi: embed; vertical-align: middle;">It went up
 * 6) <span style="direction: ltr; font-family: Calibri; font-size: 11pt; font-style: normal; font-weight: normal; margin-bottom: 0px; margin-left: 0.375in; margin-top: 0in; unicode-bidi: embed; vertical-align: middle;">The oxygen in the air went in the copper

<span style="color: #17365d; direction: ltr; font-family: Calibri; font-size: 16pt; font-style: normal; font-weight: normal; margin: 0in; unicode-bidi: embed; vertical-align: middle;">**Relative Reactivities of Metals Lab questions.** <span style="direction: ltr; font-family: Calibri; font-size: 11pt; font-style: normal; font-weight: normal; margin: 0in; unicode-bidi: embed; vertical-align: middle;">1.) Mg <span style="direction: ltr; font-family: Calibri; font-size: 11pt; font-style: normal; font-weight: normal; margin: 0in; unicode-bidi: embed; vertical-align: middle;">2.) Ag <span style="direction: ltr; font-family: Calibri; font-size: 11pt; font-style: normal; font-weight: normal; margin: 0in; unicode-bidi: embed; vertical-align: middle;">3.)None of them. <span style="direction: ltr; font-family: Calibri; font-size: 11pt; font-style: normal; font-weight: normal; margin: 0in; unicode-bidi: embed; vertical-align: middle;">4.)Mg, Zn, Cu, Ag. <span style="direction: ltr; font-family: Calibri; font-size: 11pt; font-style: normal; font-weight: normal; margin: 0in; unicode-bidi: embed; vertical-align: middle;">5.)The outside is copper because copper does not react well and makes a good metal to put on a coin because you wouldn’t want it reacting if it was in your pocket or hands, Zinc reacts more than copper which is why copper is used. <span style="direction: ltr; font-family: Calibri; font-size: 11pt; font-style: normal; font-weight: normal; margin: 0in; unicode-bidi: embed; vertical-align: middle;">6.) a.) silver because it did not react with any of the chemicals. <span style="direction: ltr; font-family: Calibri; font-size: 11pt; font-style: normal; font-weight: normal; margin: 0in 0in 0in 0.375in; unicode-bidi: embed; vertical-align: middle;">b.) Silver is not used because it is an expensive metal and would probably cost a lot more to make coins with this metal than silver. <span style="direction: ltr; font-family: Calibri; font-size: 11pt; font-style: normal; font-weight: normal; margin: 0in; unicode-bidi: embed; vertical-align: middle;">7.) a.) Silver would be most likely because it would most likely not react with anything and stay just Ag <span style="direction: ltr; font-family: Calibri; font-size: 11pt; font-style: normal; font-weight: normal; margin: 0in 0in 0in 0.375in; unicode-bidi: embed; vertical-align: middle;">b.)Mg would more than likely be found combined with other elements because it was proven to e highly reactive. <span style="direction: ltr; font-family: Calibri; font-size: 11pt; font-style: normal; font-weight: normal; margin: 0in; unicode-bidi: embed; vertical-align: middle;">8.)Yes you could have eliminated one and still have basically the same information. <span style="direction: ltr; font-family: Calibri; font-size: 11pt; font-style: normal; font-weight: normal; margin: 0in 0in 0in 0.375in; unicode-bidi: embed; vertical-align: middle;">b.)You could have eliminated MgNO3 because it did not react with any of the metals. ==**Activity Series of Metals Assignment** (Oxidation/Reduction Part I)==

1. a. Mg is surrounded by a two-electron cloud b. Zn is also surrounded by a two-electron cloud. c. Zn2+ ions rise on top of the Mg metal to gain two electrons each to become Zn atoms d. But when Mg2+ ions rise to surface of the Zn metal no reaction occurs. 2. a. Mg2+ and Copper metal = No reaction b. Zn2+ and Copper metal = No reaction c. Cu2+ and Mg metal = Cu2+ ions gain two electrons each to become Cu atoms d.Cu2+ and Zn Metal = Cu2+ ions gain two electrons each to become Cu atoms

3. Ag+ and Mg Reactive. Mg+ ions gain an electron each to become Mg atoms Ag+ and Zn Reactive. Ag+ ions gain an electron each to become Mg atoms Zn2+ and Ag Not Reactive. Mg2+ and Ag Not Reactive.

4. Most reactive to least reactive is Mg Zn Cu Ag

feb7 2011

ChemQuandry 1/Building Skills 5
ChemQuandary: They were probably the first elements to be discovered because they were the first elements to be found by themselves, rather than combined with other elements.

1a - from left to right, they go from most reactive to least reactive. b - on the left side. c - the right side. 2a - The iron will react with the lead nitrate because it is more reactive, and will lose electrons that will go into the lead nitrate solution b - no because the lead nitrate solution is more reactive than the platinum. c - already explained. 3a - yes, the less reactive metals are cheaper, because they require less work to obtain the metal. example: silver and gold can just be found, and you dont have to heat them or do anything to obtain the metal. b -

part 2

1. Construct a similar electron-dot expression for the change that occurred in Lab. B.4 when each of these events took place. Zn: --> Zn2+ + 2e- B = Zinc Ag: -> Ag+ + e- 00. = silver / 20s •Zip: t + be re _ •spot + At • 2. In the first one it is going through reduction because the negative electrons make the ion become negative. In the second one it is going through oxidation because the silver doesn’t really change. 3a. The copper is oxidized. 3b. The copper 4. So the ion isn't changed. 5a. The reducing agent must be the copper because the silver has to be reduced when the copper is reduced. 5b. The reducing agent is the atom that is needed to keep everything in balance when you are trying to reduce the ions. 6. on +2. Soon 12+7 Co.: in 7. The copper is oxidized. The Zinc is reduced. 8. The oxidizing agent is the zinc. The reducing agent is the copper. 9. You can just look at the equation because it shows you. The electron-dot diagram is if you cannot tell by the equation. 10. There is not enough information in the sequence so you would need to make a diagram.

lab question (No data table -10) 1. copper 2.(? -2) 3.nail 4. (? -2) 5. yea, because thats wat your coating (What happens if you run out of material?) -1 6. no, because it can get covered (Yes, it should be something other than the material that you are coating with?) -2 7. yes but u will need a big bowl, its possibale (On this level you are talking about large scale production. All materials will have to be in greater amount. All energy sources will have to be in much higher amounts.) -1