1 / 16

Eagle Review

Eagle Review. Any page. Writing Word equations.  2KCl ( l )  2K( l  ) + Cl 2 ( g ) An electrolysis apparatus can be used to make this decomposition reaction occur. Write a word equation that describes this formula. Gas Laws.

aldan
Télécharger la présentation

Eagle Review

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Eagle Review Any page

  2. Writing Word equations  2KCl (l) 2K(l ) + Cl2(g) An electrolysis apparatus can be used to make this decomposition reaction occur. Write a word equation that describes this formula.

  3. Gas Laws A student team graphs the temperature of a sample of nitrogen gas over time. The sample is in a sealed container that has a fixed volume. Compared with time 1, at time 2 the nitrogen gas has greater A.mass. B.chemical energy. C.pressure. D.net charge.

  4. Decomposition The diagram illustrates the chemical change of hydrogen peroxide (H2O2) to produce water (H2O) and oxygen (O2). How should this change be classified?

  5. The flowchart shows the physical methods some scientists used to separate a particular mixture. Which substances were most likely contained in the original sample? A.iron, sawdust, and sodium chloride B.copper, sawdust, and sodium chloride C.iron, sawdust, and sand D.iron, chalk dust, and sodium chloride

  6. The table shows the atomic radii, in picometers, for elements in period 2 of the periodic table. Which statement correctly explains the general trend in atomic radius from Li to F?

  7.   C(s) + H2O(g)CO(g) + H2(g) The water-gas reaction shown is correctly balanced. Which quantity must be conserved in any balanced chemical equation? A.number of bonds formed B.number of molecules C.number of moles on each side of the equation D.number of atoms of each element

  8.  H2(g) + Cl2(g)  2HCl(g) + energy Hydrogen reacts with chlorine in a reversible reaction, as shown in the equation. Which change will increase the equilibrium yield of hydrogen chloride (HCl)? A.increasing the partial pressure of the Cl2 B.decreasing the partial pressure of the H2 C.increasing the temperature of the reaction D.decreasing the pressure in the reaction vessel

  9. Which mixture could be separated using the apparatus shown in the diagram? A.ethyl alcohol and water B.carbon dioxide and water C.sodium chloride and water D.powdered quartz and water

  10. Plutonium-239 (Pu-239) is a dangerous substance in many ways. Produced in nuclear reactors, it is very poisonous, highly radioactive, and it can be used to make nuclear bombs. The half-life of Pu-239 is about 24,000 years. How much Pu-239 would remain in a sample with an initial mass of 48 grams after 96,000 years?

  11. Solutions Pg. 107

  12. Characteristics of Solutions • Homogeneous mixtures • 2 parts • Solute- substance being dissolved • Solvent- substance doing the dissolving • Water called universal solvent • If substances dissolve readily they are soluble • A substance that does not dissolve is insoluble • Substances that mix together but then separate are immiscible • Substances that mix together and stay are miscible

  13. Solvation In order for a solute to dissolve, the attractive forces between the solute must be weaker than the forces between the solute and solvent The solvent particles surround the solute particles and if strong enough break them apart Process is called solvation General rule- ‘like dissolves like’

  14. Solubility Maximum amount of solute that will dissolve in a given amount of solvent and a specific temp and pressure Expressed in grams of solute per 100g of solvent

  15. Types of solutions Saturated- contains the maximum amount of dissolved solute; no more can be added Unsaturated solution- contains less dissolved solute than can be in a solvent; more can be added Supersaturated solution- can increase the temperature and add more solute than a saturated solution; cooled slowly will form crystals

More Related