Biology Fall Semester Test 1 Study Guide
... In a trophic pyramid, _______% of the energy from a source is passed on to the next level All living things are ________________, meaning they can’t survive on their own. The study of living things is called: A series of changes an organism undergoes in reaching its final adult form is called: Cellu ...
... In a trophic pyramid, _______% of the energy from a source is passed on to the next level All living things are ________________, meaning they can’t survive on their own. The study of living things is called: A series of changes an organism undergoes in reaching its final adult form is called: Cellu ...
Ch 5.1 The Nature of Chemical Reactions
... Objectives For this Chapter • Understand parts to a chemical equation (reactants, products, yeild sign, double arrow) • Conservation of matter is expressed through balancing chemical equations • Describe difference between endothermic and exothermic reactions ...
... Objectives For this Chapter • Understand parts to a chemical equation (reactants, products, yeild sign, double arrow) • Conservation of matter is expressed through balancing chemical equations • Describe difference between endothermic and exothermic reactions ...
Notes for Types of Reactions:
... chemical reaction = the _________ by which one or more substances are __________ into one or more _________ substances. in any chemical reaction, the _________ substances are known as the reactants and the __________ substances are known as the products. total mass of reactants = according to ...
... chemical reaction = the _________ by which one or more substances are __________ into one or more _________ substances. in any chemical reaction, the _________ substances are known as the reactants and the __________ substances are known as the products. total mass of reactants = according to ...
Types of Reactions
... If you can’t come to the Monday Re-Do session, you MUST come before school two days for help. You MUST let me know that you’re interested by Thursday!!!! ...
... If you can’t come to the Monday Re-Do session, you MUST come before school two days for help. You MUST let me know that you’re interested by Thursday!!!! ...
S3 Chemistry - eduBuzz.org
... Identify whether a species has an equal or unequal number of protons and electrons and use this to state whether it is an atom or ion. State the charge of an ion. Calculate the charge on a ion using nuclide notation Use the periodic table to identify whether an element is a metal or non-meta ...
... Identify whether a species has an equal or unequal number of protons and electrons and use this to state whether it is an atom or ion. State the charge of an ion. Calculate the charge on a ion using nuclide notation Use the periodic table to identify whether an element is a metal or non-meta ...
Chem 206 Exam 2 Answers
... Or: Because at equilibrium kf=kr, 3.45 M −1 ⋅ s −1 × 2.8 × 2.8 = 27 M ⋅ s−1 d) After equilibrium is obtained, you add a catalyst and 3.00 additional moles of HCl. What will happen? <8 pts.> The addition of a catalyst will not change the equilibrium but will only increase the rate at which equilibriu ...
... Or: Because at equilibrium kf=kr, 3.45 M −1 ⋅ s −1 × 2.8 × 2.8 = 27 M ⋅ s−1 d) After equilibrium is obtained, you add a catalyst and 3.00 additional moles of HCl. What will happen? <8 pts.> The addition of a catalyst will not change the equilibrium but will only increase the rate at which equilibriu ...
powerpoint
... 3) Does your reaction have one large molecule falling apart to make several small ones? If yes, then it's a decomposition reaction 4) Does your reaction have any molecules that contain only one element? If yes, then it's a single displacement reaction 5) If you haven't answered "yes" to any of the ...
... 3) Does your reaction have one large molecule falling apart to make several small ones? If yes, then it's a decomposition reaction 4) Does your reaction have any molecules that contain only one element? If yes, then it's a single displacement reaction 5) If you haven't answered "yes" to any of the ...
Chapter 14, Section 1, pages 494-501
... Reversible Reactions and Chemical Equilibrium Objectives To contrast reactions. To describe chemical equilibrium To give examples of chemical equilibrium Demo Burn sulfur in oxygen as an example of a completion reaction. Input Completion Reactions and Reversible Reactions What does reversible mean? ...
... Reversible Reactions and Chemical Equilibrium Objectives To contrast reactions. To describe chemical equilibrium To give examples of chemical equilibrium Demo Burn sulfur in oxygen as an example of a completion reaction. Input Completion Reactions and Reversible Reactions What does reversible mean? ...
Chemical Reactions and Enzymes What is a chemical reaction?
... • Changes or transforms chemicals into other chemicals • Ex: Iron + Oxygen Iron Oxide (rust) • What is the product? • What are the reactants? ...
... • Changes or transforms chemicals into other chemicals • Ex: Iron + Oxygen Iron Oxide (rust) • What is the product? • What are the reactants? ...
CHEMISTry is life - World of Teaching
... they are scared before they even begin. -My goal is to shape a positive image in their minds about chemistry so that they can be more prepared mentally for high school. -I will do this by showing them how applicable chemistry is to every day life. It is the study of everything, and it is the central ...
... they are scared before they even begin. -My goal is to shape a positive image in their minds about chemistry so that they can be more prepared mentally for high school. -I will do this by showing them how applicable chemistry is to every day life. It is the study of everything, and it is the central ...
No Slide Title
... A Closer Look at the Equation 2Al(s) + 3Br2(l) Al2Br6(s) • The chemicals on the left are the reactants and the right are the products. • The coefficient in front of the chemical denotes the stoichiometric relationship. • The numerical subscript represents the number of atoms present in the molecu ...
... A Closer Look at the Equation 2Al(s) + 3Br2(l) Al2Br6(s) • The chemicals on the left are the reactants and the right are the products. • The coefficient in front of the chemical denotes the stoichiometric relationship. • The numerical subscript represents the number of atoms present in the molecu ...
Final
... Perform molarity calculations and conversions Be able to develop a precipitation and acid/base neutralization reaction given the names of the starting materials Determine whether a material is soluble or insoluble Determine whether a precipitation and acid/base neutralization reaction occurs Write c ...
... Perform molarity calculations and conversions Be able to develop a precipitation and acid/base neutralization reaction given the names of the starting materials Determine whether a material is soluble or insoluble Determine whether a precipitation and acid/base neutralization reaction occurs Write c ...
CHEMICAL REACTIONS
... ________ 16. Which binary compound decomposes to form K I2? a. KI2 c. K2I b. KI d. none of the above ________ 17. In order for the reaction Cu(s) 2AgNO3(aq) y Cu(NO3)2(aq) 2Ag(s) to occur, which of the following must be true? a. Cu must be above Ag in the activity series. b. Ag must be above C ...
... ________ 16. Which binary compound decomposes to form K I2? a. KI2 c. K2I b. KI d. none of the above ________ 17. In order for the reaction Cu(s) 2AgNO3(aq) y Cu(NO3)2(aq) 2Ag(s) to occur, which of the following must be true? a. Cu must be above Ag in the activity series. b. Ag must be above C ...
+ H 2 SO 4(aq) - Rothschild Science
... Until you get good at this, it is helpful to write the number of atoms of each element on both sides of the equation. It helps you to keep track of the atoms. ...
... Until you get good at this, it is helpful to write the number of atoms of each element on both sides of the equation. It helps you to keep track of the atoms. ...
Stoichiometry
... Chlorates – chloride salt and oxygen 2KClO3(s) 2KCl(s) + 3O2(g) Carbonates – oxides and carbon dioxide BaCO3(s) BaO(s) + CO2(g) Hydroxides – metal oxide and water NaOH(l) Na2O(s) + H2O(l) Acids – nonmetallic oxide and water H2SO4(s) SO3(g) + H2O(l) ...
... Chlorates – chloride salt and oxygen 2KClO3(s) 2KCl(s) + 3O2(g) Carbonates – oxides and carbon dioxide BaCO3(s) BaO(s) + CO2(g) Hydroxides – metal oxide and water NaOH(l) Na2O(s) + H2O(l) Acids – nonmetallic oxide and water H2SO4(s) SO3(g) + H2O(l) ...
S3 Chemistry - eduBuzz.org
... Identify whether a species has an equal or unequal number of protons and electrons and use this to state whether it is an atom or ion. State the charge of an ion. Calculate the charge on a ion using nuclide notation Use the periodic table to identify whether an element is a metal or non-meta ...
... Identify whether a species has an equal or unequal number of protons and electrons and use this to state whether it is an atom or ion. State the charge of an ion. Calculate the charge on a ion using nuclide notation Use the periodic table to identify whether an element is a metal or non-meta ...
Learning Outcomes for Chemical Reactions and
... • Identify whether a species has an equal or unequal number of protons and electrons and use this to state whether it is an atom or ion. • State the charge of an ion. • Calculate the charge on a ion using nuclide notation • Use the periodic table to identify whether an element is a metal or non-meta ...
... • Identify whether a species has an equal or unequal number of protons and electrons and use this to state whether it is an atom or ion. • State the charge of an ion. • Calculate the charge on a ion using nuclide notation • Use the periodic table to identify whether an element is a metal or non-meta ...
RXN-4-STUDENTS - Rothschild Science
... 4. What kind of quantitative observations would be helpful? ...
... 4. What kind of quantitative observations would be helpful? ...
Chemical Reactions: Introduction to Reaction Types
... elements, b) 1 element and 1 binary compound (consisting of 2 elements), or c) 2 binary compounds. The following are examples of combination reactions: The rusting of iron: 4Fe (s) + 3O2 (g) → 2Fe2O3 (s) The formation of one kind of acid rain: SO3 (g) + H2O (l) → H2SO4 (aq) 2. Decomposition: AB → A ...
... elements, b) 1 element and 1 binary compound (consisting of 2 elements), or c) 2 binary compounds. The following are examples of combination reactions: The rusting of iron: 4Fe (s) + 3O2 (g) → 2Fe2O3 (s) The formation of one kind of acid rain: SO3 (g) + H2O (l) → H2SO4 (aq) 2. Decomposition: AB → A ...
CHEMICAL REACTIONS OBJECTIVES 1. To study reactions
... When sodium bicarbonate, e.g. baking soda, is combined with an acid, a gas is produced HCO3- + H+ -----> CO2(g) + H2O(l) ...
... When sodium bicarbonate, e.g. baking soda, is combined with an acid, a gas is produced HCO3- + H+ -----> CO2(g) + H2O(l) ...
Chemistry
... Put a "C" next to the reaction in box 1-1 that is a combination reaction. Put a "D" next to the reaction in Box 1-1 that is a decomposition reaction. Put a "S-R" next to the single replacement reaction in Box 1-1. Put an "O" next to the combustion reaction in Box 1-1. ...
... Put a "C" next to the reaction in box 1-1 that is a combination reaction. Put a "D" next to the reaction in Box 1-1 that is a decomposition reaction. Put a "S-R" next to the single replacement reaction in Box 1-1. Put an "O" next to the combustion reaction in Box 1-1. ...
Chemical Reactions
... The reactants are separated from each other by a plus sign and the products are separated from each other by a plus sign. There should be an arrow in the middle. Examples: When sodium is mixed with water, a purple alkaline solution of sodium hydroxide is produced and hydrogen gas is evolved. Sodium ...
... The reactants are separated from each other by a plus sign and the products are separated from each other by a plus sign. There should be an arrow in the middle. Examples: When sodium is mixed with water, a purple alkaline solution of sodium hydroxide is produced and hydrogen gas is evolved. Sodium ...
Lewis acid catalysis
In Lewis acid catalysis of organic reactions, a metal-based Lewis acid acts as an electron pair acceptor to increase the reactivity of a substrate. Common Lewis acid catalysts are based on main group metals such as aluminum, boron, silicon, and tin, as well as many early (titanium, zirconium) and late (iron, copper, zinc) d-block metals. The metal atom forms an adduct with a lone-pair bearing electronegative atom in the substrate, such as oxygen (both sp2 or sp3), nitrogen, sulfur, and halogens. The complexation has partial charge-transfer character and makes the lone-pair donor effectively more electronegative, activating the substrate toward nucleophilic attack, heterolytic bond cleavage, or cycloaddition with 1,3-dienes and 1,3-dipoles.Many classical reactions involving carbon–carbon or carbon–heteroatom bond formation can be catalyzed by Lewis acids. Examples include the Friedel-Crafts reaction, the aldol reaction, and various pericyclic processes that proceed slowly at room temperature, such as the Diels-Alder reaction and the ene reaction. In addition to accelerating the reactions, Lewis acid catalysts are able to impose regioselectivity and stereoselectivity in many cases.Early developments in Lewis acid reagents focused on easily available compounds such as TiCl4, BF3, SnCl4, and AlCl3. The relative strengths of these (and other) Lewis acids may be estimated from NMR spectroscopy by the Childs method or the Gutmann-Beckett method. Over the years, versatile catalysts bearing ligands designed for specific applications have facilitated improvement in both reactivity and selectivity of Lewis acid-catalyzed reactions. More recently, Lewis acid catalysts with chiral ligands have become an important class of tools for asymmetric catalysis.Challenges in the development of Lewis acid catalysis include inefficient catalyst turnover (caused by catalyst affinity for the product) and the frequent requirement of two-point binding for stereoselectivity, which often necessitates the use of auxiliary groups.