Chemistry - Napa Valley College
... Hydrophilic (water-loving) – polar molecules that are attracted to water Hydrophobic (water-fearing) – nonpolar molecules that are pushed aside by water ...
... Hydrophilic (water-loving) – polar molecules that are attracted to water Hydrophobic (water-fearing) – nonpolar molecules that are pushed aside by water ...
03. The Theoretic bases of bioenergetics
... E a = activation energy R = 8.314 [ J · mol -1 · K -1 ] T = absolute temperature in degrees Kelvin A = pre-exponential or frequency factor A = p · Z, where Z is the collision rate and p is a steric factor. Z turns out to be only weakly dependant on temperature. Thus the frequency factor is a constan ...
... E a = activation energy R = 8.314 [ J · mol -1 · K -1 ] T = absolute temperature in degrees Kelvin A = pre-exponential or frequency factor A = p · Z, where Z is the collision rate and p is a steric factor. Z turns out to be only weakly dependant on temperature. Thus the frequency factor is a constan ...
Chemistry Final Test 1999-2000 - Nashoba Valley Technical High
... Quiz a friend over the material and practice explaining topics to each other. DO NOT look at the answers until you have tried the problems! If you get stuck DO NOT look at the answers until you have tried as hard to get yourself unstuck as you would try in the real exam. Rewrite your notes and ...
... Quiz a friend over the material and practice explaining topics to each other. DO NOT look at the answers until you have tried the problems! If you get stuck DO NOT look at the answers until you have tried as hard to get yourself unstuck as you would try in the real exam. Rewrite your notes and ...
Basic Background Review: Acid-Base , Redox, and Stable Isotopes
... 2. Within this group, the light isotope (L) is consistently more abundant than the heavy (H) counterpart(s). 3. It is very small (ppt) differences in (H/L) that constitute the basis of using stable isotope signatures as geochemical source and process indicators ...
... 2. Within this group, the light isotope (L) is consistently more abundant than the heavy (H) counterpart(s). 3. It is very small (ppt) differences in (H/L) that constitute the basis of using stable isotope signatures as geochemical source and process indicators ...
Chemistry of the Non
... Hydrogen can gain an electron to form the hydride ion (H+1) which has a He electron configuration. • Therefore, H could be placed above the halogens. • However, the electron affinity of H is lower than that of any halogen. Elemental hydrogen is a colorless, odorless diatomic gas at room temperature. ...
... Hydrogen can gain an electron to form the hydride ion (H+1) which has a He electron configuration. • Therefore, H could be placed above the halogens. • However, the electron affinity of H is lower than that of any halogen. Elemental hydrogen is a colorless, odorless diatomic gas at room temperature. ...
QA1
... The wire is then ready to be used. If a sample solution is being tested, immerse the wire into the solution and then put the wire into a colourless flame and note the colour of the flame. Caution should be made not to burn the glass part of the platinum wire; otherwise, it will be broken. Sodium com ...
... The wire is then ready to be used. If a sample solution is being tested, immerse the wire into the solution and then put the wire into a colourless flame and note the colour of the flame. Caution should be made not to burn the glass part of the platinum wire; otherwise, it will be broken. Sodium com ...
Name: Date: Chemistry 1 – Midterm Review Sheet Unit 1 – Scientific
... c. An antacid tablet fizzes and releases carbon dioxide gas when it comes in contact with HCl in the stomach. - CC d. A sugar cube dissolves in water. - PC 3. Which of the following is a physical change? a. burning gasoline b. cooking an egg c. decomposing meat d. steam condensing on a cold bathroom ...
... c. An antacid tablet fizzes and releases carbon dioxide gas when it comes in contact with HCl in the stomach. - CC d. A sugar cube dissolves in water. - PC 3. Which of the following is a physical change? a. burning gasoline b. cooking an egg c. decomposing meat d. steam condensing on a cold bathroom ...
Slide 1
... Note: Semiconductors are materials, which become electrically conductive when supplied with light or heat, but which operate as insulators at low temperatures PH 0101 Unit-5 Lecture-2 ...
... Note: Semiconductors are materials, which become electrically conductive when supplied with light or heat, but which operate as insulators at low temperatures PH 0101 Unit-5 Lecture-2 ...
AP Chem Summer Assign Gen Chem Rev Problems
... how much (in grams) Li2CO3 is produced? b. If 4 moles of LiOH reacts, how many moles of water will be produced? c. How many liters of carbon dioxide are required to completely react with 45 grams of lithium hydroxide at STP? d. How many grams of lithium hydroxide is required to produce 25 g of lithi ...
... how much (in grams) Li2CO3 is produced? b. If 4 moles of LiOH reacts, how many moles of water will be produced? c. How many liters of carbon dioxide are required to completely react with 45 grams of lithium hydroxide at STP? d. How many grams of lithium hydroxide is required to produce 25 g of lithi ...
Document
... hydrogen (H+) and hydroxide (OH-) ions: HOH <=> H+ + OH- The hydrogen (H+) ion is more commonly referred to as a “proton” - In essence, the proton (H+) largely exists as an hydronium ion (H3O+) in solution—ie the H+ is associated with another H2O molecule rather than roaming around as a free agent! ...
... hydrogen (H+) and hydroxide (OH-) ions: HOH <=> H+ + OH- The hydrogen (H+) ion is more commonly referred to as a “proton” - In essence, the proton (H+) largely exists as an hydronium ion (H3O+) in solution—ie the H+ is associated with another H2O molecule rather than roaming around as a free agent! ...
balancing chemical equations worksheet
... The following questions relate to these four steps. a. What symbols should we use to describe the physical states? b. Chemists and other scientists always balance chemical equations. Please explain why this is so important. (Hint, refer to the law of conservation of mass) PART B, read the following ...
... The following questions relate to these four steps. a. What symbols should we use to describe the physical states? b. Chemists and other scientists always balance chemical equations. Please explain why this is so important. (Hint, refer to the law of conservation of mass) PART B, read the following ...
Midterm Review Answers
... sodium fluoride, and sodium hydroxide you need to separate the barium, mercury(II), and magnesium ions. How would you go about separating these ions? Discuss your experimental procedure and defend your answer. Using the solubility rules, chloride compounds are generally soluble, but mercury is an ex ...
... sodium fluoride, and sodium hydroxide you need to separate the barium, mercury(II), and magnesium ions. How would you go about separating these ions? Discuss your experimental procedure and defend your answer. Using the solubility rules, chloride compounds are generally soluble, but mercury is an ex ...
Virtual Cell Learning Objectives Draft (ETC Excerpt)
... 1. The learner should recognize that photosynthesis is a process that occurs within the chloroplasts of a eukaryotic cell. 2. The learner should recognize that photosynthesis is divided into two sets of reactions light reactions and dark reactions. 3. The learner should recognize that the light reac ...
... 1. The learner should recognize that photosynthesis is a process that occurs within the chloroplasts of a eukaryotic cell. 2. The learner should recognize that photosynthesis is divided into two sets of reactions light reactions and dark reactions. 3. The learner should recognize that the light reac ...
Scientific Principles: Chemical Properties
... • Are pure substances consisting of one type of atom • Cannot be broken down or changed into another substance • Combine with other elements to form compounds ...
... • Are pure substances consisting of one type of atom • Cannot be broken down or changed into another substance • Combine with other elements to form compounds ...
AP Chemistry Summer Assignment
... While I review, extensive remediation is not an option as we work towards our goal of being prepared for the AP Exam in early May 2015. There will be a test covering the basic concepts included in the summer packet during the first week of school. You can expect a quiz in naming compounds and identi ...
... While I review, extensive remediation is not an option as we work towards our goal of being prepared for the AP Exam in early May 2015. There will be a test covering the basic concepts included in the summer packet during the first week of school. You can expect a quiz in naming compounds and identi ...
Chapter 3 Part 2 Review
... All alkali metals react with water to produce hydrogen gas and the corresponding alkali metal hydroxide. A typical reaction is that between lithium and water: 2Li(s) + 2H2O(l) 2LiOH(aq) + H2(g) How many grams of Li are needed to produce 9.89 grams of H2? ...
... All alkali metals react with water to produce hydrogen gas and the corresponding alkali metal hydroxide. A typical reaction is that between lithium and water: 2Li(s) + 2H2O(l) 2LiOH(aq) + H2(g) How many grams of Li are needed to produce 9.89 grams of H2? ...
Acids and Bases The pH Scale
... When CO2 dissolves in seawater, it reacts with water to form carbonic acid, which lowers ocean pH, a process known as ocean acidification. Based on measurements of CO2 levels in air bubbles trapped in ice over thousands of years, scientists calculate that the pH of the oceans is 0.1 pH unit lower no ...
... When CO2 dissolves in seawater, it reacts with water to form carbonic acid, which lowers ocean pH, a process known as ocean acidification. Based on measurements of CO2 levels in air bubbles trapped in ice over thousands of years, scientists calculate that the pH of the oceans is 0.1 pH unit lower no ...
Chemistry Fall Final Review 2012-2013 Alchemy Unit
... Alchemy Unit 1. Using the periodic table, where are the metals and nonmetals? What is hydrogen? Metals are in the left side of the periodic table. Nonmetals are on the right side of the periodic table. Hydrogen is an nonmetal. 2. Where are the alkali, alkaline earth, transition metals, halogens, and ...
... Alchemy Unit 1. Using the periodic table, where are the metals and nonmetals? What is hydrogen? Metals are in the left side of the periodic table. Nonmetals are on the right side of the periodic table. Hydrogen is an nonmetal. 2. Where are the alkali, alkaline earth, transition metals, halogens, and ...
Synthesis of Alum Lab
... called ligands. Complex ions can be cations or anions. Compounds composed of a complex ion and counter ions are coordinate compounds Hydrates are indicated by the dot and number of water molecules incorporated into the compound. When finding molar mass of a hydrate, add the indicated number of water ...
... called ligands. Complex ions can be cations or anions. Compounds composed of a complex ion and counter ions are coordinate compounds Hydrates are indicated by the dot and number of water molecules incorporated into the compound. When finding molar mass of a hydrate, add the indicated number of water ...
ConcepTest On Simple Redox Reactions
... Comment to Instructor: Correct answer is 3. HCl. Since the oxidation number of H is decreasing from +1 to 0, it is undergoing reduction. Zn is being oxidized, and HCl is the “agent” that is causing the Zn to be oxidized. #4 indicates that the student is thinking that the Zn+2in ZnCl2 is undergoing r ...
... Comment to Instructor: Correct answer is 3. HCl. Since the oxidation number of H is decreasing from +1 to 0, it is undergoing reduction. Zn is being oxidized, and HCl is the “agent” that is causing the Zn to be oxidized. #4 indicates that the student is thinking that the Zn+2in ZnCl2 is undergoing r ...
Artificial photosynthesis
Artificial photosynthesis is a chemical process that replicates the natural process of photosynthesis, a process that converts sunlight, water, and carbon dioxide into carbohydrates and oxygen. The term is commonly used to refer to any scheme for capturing and storing the energy from sunlight in the chemical bonds of a fuel (a solar fuel). Photocatalytic water splitting converts water into Hydrogen Ions and oxygen, and is a main research area in artificial photosynthesis. Light-driven carbon dioxide reduction is another studied process, replicating natural carbon fixation.Research developed in this field encompasses design and assembly of devices (and their components) for the direct production of solar fuels, photoelectrochemistry and its application in fuel cells, and engineering of enzymes and photoautotrophic microorganisms for microbial biofuel and biohydrogen production from sunlight. Many, if not most, of the artificial approaches are bio-inspired, i.e., they rely on biomimetics.