Chapter 2 “The Chemistry of Life” Worksheet ANSWERS Section Review 2-1 1. Protons; neutrons 2. electrons 3. neutrons 4. electrons 5. ionic 6. The two main types of chemical bonds are ionic and covalent bonds 7. At atom becomes an ion when it gains or loses electrons 8. Electrons and protons are both subatomic particles; however, they have different charges and locations within the atom. 9. When atoms are joined together by covalent bonds, the structure that
Words: 429 - Pages: 2
Specialty Chemicals Defined: Specialty chemicals are a category of relatively high valued, rapidly growing chemicals with diverse end product markets. Typical growth rates are one to three times GDP with prices over a dollar per pound. They are generally characterized by their innovative aspects. Products are sold for what they can do rather than for what chemicals they contain. Products include electronic chemicals, industrial gases, adhesives and sealants as well as coatings, industrial and
Words: 457 - Pages: 2
SCH 4U Exam Review Unit 1 - Electrochemistry 1. If Ag+ (aq) + e- Ag (s) was chosen as the standard for half-cell potentials, what would be the half-cell potential for Ni2+ (aq) + 2e- Ni (s)? 2. 3Ca (s) + 2Al(NO3)3 (aq) 3Ca(NO3)2 (aq) + 2Al (s) a) Predict the voltage for an electrochemical cell based on the above reaction. Assume standard conditions. 3. Use the Eo values to determine if the following reaction is spontaneous or not: Mg2+ (aq) + Cu (s) Mg (s)
Words: 1549 - Pages: 7
Elijah Kim Mrs. Dobler Course 2 2/10/15 Titration lab Titration is used to find the specific amount of a standard solution in an amount of unknown liquid. Titration in this lab is performed with the chemical reactions between acids and liquids. During titration, we have to stop at the point where stoichiometric amounts of acids and bases are reacting. We can find that point by looking for indicators, for example in this lab the indicators were changes in color. So the purpose of all this is
Words: 350 - Pages: 2
perfect than gold, it was reasonable to believe that nature created gold out of other metals found deep within the earth and that a skilled artisan could duplicate this process. It was said that once someone was able to change, or transmute a "base" chemical into the perfect metal, gold, they would have achieved eternal life and salvation. In this way, alchemy turned into not only a scientific quest, but a spiritual quest as well. Although the purposes and techniques were often times ritualistic and
Words: 665 - Pages: 3
Blood agents are poisons that act on the body by being consumed into the blood (http://emergency.cdc.gov/agent/blood/). There are three known blood agents as identified by the Center for Disease Control: Arsine (SA), Carbon Monoxide (CO), Cyanide, and Sodium monofluoroacetate (compound 1080). I will attempt to discuss in detail how each blood agent enters the body and effects the human body. Blood agents extract from its effect on exposed victims. Blood agents generally enters the body by
Words: 1055 - Pages: 5
Michaelis-Menten Kinetics: The Enzyme-Catalyzed Hydrolysis of Sucrose1 Background Of the numerous chemical reactions whose kinetics have been studied, some of the most interesting and complex are those which take place in living organisms. These reactions, when studied under non-biological conditions (lack of organisms and their various biomolecules), are often exceptionally slow: often hours or days, and sometimes even years are required before equilibrium is reached. Yet life requires seconds
Words: 2060 - Pages: 9
Precipitation Lab Purpose: 1. Identify the ions present in various aqueous solutions. 2. Combine solutions and identify the reactions that form precipitates. 3. Write balanced molecular equation, complete ionic equation, and a net ionic equation for each precipitation reaction. Materials: • Small test tubes • Various solutions Procedure: 1. Add 10-15 drops of the each reactant to a test tube. 2. Observe the results when the two solutions are combined in the test tube. 3. Record your
Words: 692 - Pages: 3
Solubility is the property of a solid, liquid, or gaseous chemical substance called solute to dissolve in a solid, liquid, or gaseous solvent to form a solution of the solute in the solvent Solubility is defined as the ability of one substance to dissolve within another substance. What Affects Solubility? One of the factors that has a profound impact on solubility is temperature. Temperature, a measure of the available thermal energy, can increase the solubility of solids in liquids. This phenomenon
Words: 825 - Pages: 4
Ask most chemists who discovered the periodic table and you will almost certainly get the answer Dmitri Mendeleev. Certainly Mendeleev was the first to publish a version of the table that we would recognise today, but does he deserve all the credit? A number of other chemists before Mendeleev were investigating patterns in the properties of the elements that were known at the time. The earliest attempt to classify the elements was in 1789, when Antoine Lavoisier grouped the elements based on their
Words: 332 - Pages: 2
