ACIDS AND BASES HOMEWORK 2011 MARK ROSENGARTEN

Atomic radius The size of an atom. This makes for a bond much stronger than an ionic bond. To determine for sure if a bond is ionic, look up the electronegativities of the two bonding elements on ReferenceTable S and take their difference. Period Not capable of readily undergoing a chemical change. The exceptions to this are the elements that have roots in antiquity, so they had Greek or Latinnames. Phenolphthalein turns from colorless to pink at a pH of 8. It is a surface attraction, and may bebroken simply by melting or dissolving in water.

Na has 11 protons, Mg has 12, Al 13, Si 14, and so on. Sulfuric acid H2SO4 is used as a catalyst for certain reactions, and as a reactant in refining iron ore. C Element Types1 Identify the following elements as being metals, nonmetals, metalloids or noble gases: Cl gains one electron to make a stable octet. Chemical bonds arewhat hold atoms together to make compounds, and what are broken when compounds are decomposed backinto the original elements.

The exceptions to this are the elements that have roots in antiquity, so they had Greek or Latinnames. Brittle The magk to be crushed into pieces when hammered, a property of nonmetals.

acids and bases homework 2011 mark rosengarten

Diatomic molecule A nonmetal atom that forms one or more nonpolar covalent bonds with another atom of the same element to form a molecule consisting of the rosenyarten atoms when there is no otherDuctile element to bond with. Electronegativity can be found on Reference Table S.

The more layers an onion has, the larger the onion is. What makes atoms stick together to form compounds and molecules? Molecules can only be made of nonmetal atomsbonding to each other. If anelement has valence electrons, it will opt to lose them. Create your own flipbook. Pay for a paper that is worth your money. Dull The ability to be stretched into bades wire, a property of metals. An ionic compound formed when an acid homeework base neutralize each other.

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Unit 6 Periodic Table and Bonding R – Mark Rosengarten Pages 1 – 24 – Text Version | FlipHTML5

You submit the paper and get the grade you expect. Rows across the periodic table that denote elements with the same number of principalReactive energy levels. Metallic bond Elements that have low electronegativity and ionization energy and large radius that tend to lose electrons to form chemical bonds.

The one additional electron makes Cl-1 bigger than Cl0 because the extra electron increases the repulsion between the electrons in the valence shell.

Acids and bases homework mark rosengarten answers –

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acids and bases homework 2011 mark rosengarten

The point at which the titrated solution has a pH of 7. The size of an ion compared to the original atom.

Unit 6 Periodic Table and Bonding R – Mark Rosengarten

Indicator used pH of solution Methyl orange Litmus Bromcresol green Thymol blue 9 10 2 13 Color of indicator in solution Is the solution an aci 4 Explain why methyl orange would be a poor choice of indicator to use if you were testing to see if a solution was definitively an acid or a base. If you place wires connected to a source of electricity like a battery into the water, the ions willcarry the electrical charge from one wire to the other wire, allowing the electric current to keep flowing.

Elements in the middle can lose electrons from both the valence energy level and the one below it when formingions.

acids and bases homework 2011 mark rosengarten

The nonmetal atom gains electrons from the metal atom, which loses all of its valence electrons tothe nonmetal. Besides, foreign customers also order customized papers.

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I Chemistry of the Groups of the Periodic Table1 Identify the group that a particular element belongs to homewogk on the maro CH4 methanenatural gas is a molecule made of one carbon atom with four hydrogen atoms bonded to it. Problem – You find a bottle labeled “NaOH”, with no concentration written on it. What is the molarity of the H2SO4? Here is a listing of those elements: The water formed is considered to be the precipitate.

The emphasis is on basic principles of atomic and molecular electronic structure, thermodynamics, acid-base and redox equilibria, chemical kinetics, and catalysis. Molecular substances arenot made of charged particles, so, unlike ionic compounds, they cannot conduct electricity in any phase. Now, since acids may have more than one H and bases may have more than one OH, the equation has to be finalized as: A substance that will destroy or irreversibly damage any substance or surface it comes into contact with through a chemical change, usually used to describe bases.

Columns down the periodic table that denote elements with the same number ofHalogen valence electrons and similar chemical properties.