Ch3
... – Mole ratio (divide all moles by the smallest number of moles) – The numbers represent subscripts. • If the numbers are not whole numbers, multiply by some factor to make them whole. ...
... – Mole ratio (divide all moles by the smallest number of moles) – The numbers represent subscripts. • If the numbers are not whole numbers, multiply by some factor to make them whole. ...
An element`s properties depend on the structure of its atoms
... • In the 1930’s Linus Pauling introduced the concept of hybridization to explain chemical bond formation. Hybridization is the mixing of atomic orbitals in an atom to generate a set of new atomic orbitals called hybrid orbitals. • Mixing an s orbital with one of the p orbitals generates two equivale ...
... • In the 1930’s Linus Pauling introduced the concept of hybridization to explain chemical bond formation. Hybridization is the mixing of atomic orbitals in an atom to generate a set of new atomic orbitals called hybrid orbitals. • Mixing an s orbital with one of the p orbitals generates two equivale ...
1 - Intro to Electrochemistry
... A redox reaction is one where one substance is _______________ while another substance is simultaneously _______________ ...
... A redox reaction is one where one substance is _______________ while another substance is simultaneously _______________ ...
Preview Sample 1
... B) two or more atoms lose electrons at the same time. C) a pair of electrons is shared unequally by two atoms. D) hydrogen forms bonds with negatively charged atoms in the same or different molecule. E) atoms share electrons. ...
... B) two or more atoms lose electrons at the same time. C) a pair of electrons is shared unequally by two atoms. D) hydrogen forms bonds with negatively charged atoms in the same or different molecule. E) atoms share electrons. ...
In Class Problems and Notes AP Chemistry General Equilibrium
... Notes on Solubility of Salts Ksp KNOW YOUR SOLUBILITY RULES by ♥!!!!!!!!!!!! Precipitation is the act of precipitating or forming an insoluble solid. It is formed by the reaction of two or more solutions of soluble compounds. Solubility is the measure of the of the extent to which a compound will di ...
... Notes on Solubility of Salts Ksp KNOW YOUR SOLUBILITY RULES by ♥!!!!!!!!!!!! Precipitation is the act of precipitating or forming an insoluble solid. It is formed by the reaction of two or more solutions of soluble compounds. Solubility is the measure of the of the extent to which a compound will di ...
RES8_chemcontentchecklist
... State and explain the tetrahedral shape around each carbon atom in alkanes. Explain in terms of van der Waals’ forces the variations in the boiling points of alkanes with different carbon-chain length and branching. Describe the combustion of alkanes, leading to their use as fuels in industry, in th ...
... State and explain the tetrahedral shape around each carbon atom in alkanes. Explain in terms of van der Waals’ forces the variations in the boiling points of alkanes with different carbon-chain length and branching. Describe the combustion of alkanes, leading to their use as fuels in industry, in th ...
Preview to Mole Activity #2 preview_to_mole_activity_21
... Today’s activity will introduce you to a unit of measure without which chemistry would not exist. It is a unit much like a dozen, which helps us count things. “Why would a chemist need to count things?” you might ask. Examine the following chemical equation: 2H2 + O2 ------> 2H2O This can be interpr ...
... Today’s activity will introduce you to a unit of measure without which chemistry would not exist. It is a unit much like a dozen, which helps us count things. “Why would a chemist need to count things?” you might ask. Examine the following chemical equation: 2H2 + O2 ------> 2H2O This can be interpr ...
Determination of Active Ingredients in Commercial Bleach and Vinegar
... Companies selling chemical consumer products do extensive advertising in an attempt to convince the consumer that their detergent is stronger, gets clothes whiter, and is safer for the environment. Of all the formulations that have been placed on the market that claim to remove stains from most clot ...
... Companies selling chemical consumer products do extensive advertising in an attempt to convince the consumer that their detergent is stronger, gets clothes whiter, and is safer for the environment. Of all the formulations that have been placed on the market that claim to remove stains from most clot ...
2A6
... the direct excitation of the frontier electronic states of the adsorbates has been reported for only a few kinds of physisorbed3 and chemisorbed4,5 molecules. Notably, previously reported photodissociation reactions on single-crystalline metal surfaces have been achieved only by excitation with UV-l ...
... the direct excitation of the frontier electronic states of the adsorbates has been reported for only a few kinds of physisorbed3 and chemisorbed4,5 molecules. Notably, previously reported photodissociation reactions on single-crystalline metal surfaces have been achieved only by excitation with UV-l ...
Thermochemistry
... • Energy change from any source such as reactions or phase change can be measured with heat capacity. E.g. How much heat is required to heat 500.0 g of water from 20.0°C to 100.0°C. • The enthalpy change in the system is the negative of the heat of the calorimeter. – E.g. exothermic reactions gives ...
... • Energy change from any source such as reactions or phase change can be measured with heat capacity. E.g. How much heat is required to heat 500.0 g of water from 20.0°C to 100.0°C. • The enthalpy change in the system is the negative of the heat of the calorimeter. – E.g. exothermic reactions gives ...
File
... 2. Write the balanced chemical equation for the combustion of methane. methane reacts with oxygen to produce carbon dioxide, water, and heat) 3. What are the products for the complete combustion of all hydrocarbons? 4. List three examples of a hydrocarbon other than methane. 5. What do you think wil ...
... 2. Write the balanced chemical equation for the combustion of methane. methane reacts with oxygen to produce carbon dioxide, water, and heat) 3. What are the products for the complete combustion of all hydrocarbons? 4. List three examples of a hydrocarbon other than methane. 5. What do you think wil ...
Aqueous Reactions and Solution Stoichiometry (Chapter 4)
... OXIDATION-REDUCTION reactions involve the transfer of electrons between atoms. Oxidation involves the loss of electrons which makes the oxidized substance more positive, thus increasing its ability to combine with oxygen. Reduction involves the gain of electrons which makes the reduced substance mor ...
... OXIDATION-REDUCTION reactions involve the transfer of electrons between atoms. Oxidation involves the loss of electrons which makes the oxidized substance more positive, thus increasing its ability to combine with oxygen. Reduction involves the gain of electrons which makes the reduced substance mor ...
all practice examples
... How many millilitres of 5.00 M K2Cr2O7 solution must be diluted to prepare 250. cm3 of 0.100 M solution? ...
... How many millilitres of 5.00 M K2Cr2O7 solution must be diluted to prepare 250. cm3 of 0.100 M solution? ...
Gas-forming Reactions
... exist in solution entirely as ions. In solution, the solid no longer exists as a well-ordered arrangement of ions in contact with one another. Instead, each ion is surrounded by water molecules. This tends to stabilize the ions in solution and prevent cations and anions from recombining. Soluble ion ...
... exist in solution entirely as ions. In solution, the solid no longer exists as a well-ordered arrangement of ions in contact with one another. Instead, each ion is surrounded by water molecules. This tends to stabilize the ions in solution and prevent cations and anions from recombining. Soluble ion ...
chemical reactions and stoichiometry chemical reactions and
... In chemical reactions, the amount of each element is always conserved. This is consistent with the statements of Dalton’s atomic theory. In addition, the total amount of electrical charge is always conserved. This is the law of conservation of charge. A balanced chemical equation describes a chemica ...
... In chemical reactions, the amount of each element is always conserved. This is consistent with the statements of Dalton’s atomic theory. In addition, the total amount of electrical charge is always conserved. This is the law of conservation of charge. A balanced chemical equation describes a chemica ...
Mole and Energy - Deans Community High School
... You can use the relative numbers of moles of substances, as shown in balanced equations, to calculate the amounts of reactants needed or the amounts of products produced. A limiting reactant is the substance that is fully used up and thereby limits the possible extent of the reaction. Other reactant ...
... You can use the relative numbers of moles of substances, as shown in balanced equations, to calculate the amounts of reactants needed or the amounts of products produced. A limiting reactant is the substance that is fully used up and thereby limits the possible extent of the reaction. Other reactant ...
Stage 2 Chemistry Intended Student Learning 2014
... This topic deals with some of the underlying principles of chemistry (‘elemental chemistry’) and then considers the chemistry of the environment. The elemental chemistry component of the topic focuses on the periodic table and the concept of electronegativity; together these underlie most of the oth ...
... This topic deals with some of the underlying principles of chemistry (‘elemental chemistry’) and then considers the chemistry of the environment. The elemental chemistry component of the topic focuses on the periodic table and the concept of electronegativity; together these underlie most of the oth ...
GCSE - WordPress.com
... e) Ethene is an unsaturated compound. By means of gas A, ethene is converted into ethane, a saturated compound. Give one commercial application of this type of reaction. ...
... e) Ethene is an unsaturated compound. By means of gas A, ethene is converted into ethane, a saturated compound. Give one commercial application of this type of reaction. ...
![Homework Booklet [4,S]](http://s1.studyres.com/store/data/010355871_1-63c750e3d1b58eaaebbb3f5d45651c44-300x300.png)
Homework Booklet [4,S]
... e) Ethene is an unsaturated compound. By means of gas A, ethene is converted into ethane, a saturated compound. Give one commercial application of this type of reaction. ...
... e) Ethene is an unsaturated compound. By means of gas A, ethene is converted into ethane, a saturated compound. Give one commercial application of this type of reaction. ...
Question 1 - JustAnswer
... Consider the following equilibrium: O2(g) + 2F2(g) 2OF2(g); Kp = 2.3 × 10–15 Which of the following statements is true? Answer If the reaction mixture initially contains only OF2(g), then the total pressure at equilibrium will be less than the total initial pressure. If the reaction mixture initiall ...
... Consider the following equilibrium: O2(g) + 2F2(g) 2OF2(g); Kp = 2.3 × 10–15 Which of the following statements is true? Answer If the reaction mixture initially contains only OF2(g), then the total pressure at equilibrium will be less than the total initial pressure. If the reaction mixture initiall ...
Combustion
... the other reactant in a combustion reaction is a hydrocarbon. Hydrocarbons are organic compounds that are made up of hydrogen and carbon atoms (General formula of a hydrocarbon: CxHy). The combustion of hydrocarbons can be classified by either complete or incomplete depending on the products that fo ...
... the other reactant in a combustion reaction is a hydrocarbon. Hydrocarbons are organic compounds that are made up of hydrogen and carbon atoms (General formula of a hydrocarbon: CxHy). The combustion of hydrocarbons can be classified by either complete or incomplete depending on the products that fo ...
Basic Chemical Concepts I
... The gaseous NH3 is driven out of the reaction vessel into a second flask where it is neutralized with an excess of HCl(aq). Then, the unreacted HCl can be titrated with NaOH. In this way a quantitative determination of NO3– can be achieved. A 25.00 mL sample of nitrate solution was treated with zinc ...
... The gaseous NH3 is driven out of the reaction vessel into a second flask where it is neutralized with an excess of HCl(aq). Then, the unreacted HCl can be titrated with NaOH. In this way a quantitative determination of NO3– can be achieved. A 25.00 mL sample of nitrate solution was treated with zinc ...
Stoichiometry
Stoichiometry /ˌstɔɪkiˈɒmɨtri/ is the calculation of relative quantities of reactants and products in chemical reactions.Stoichiometry is founded on the law of conservation of mass where the total mass of the reactants equals the total mass of the products leading to the insight that the relations among quantities of reactants and products typically form a ratio of positive integers. This means that if the amounts of the separate reactants are known, then the amount of the product can be calculated. Conversely, if one reactant has a known quantity and the quantity of product can be empirically determined, then the amount of the other reactants can also be calculated.As seen in the image to the right, where the balanced equation is:CH4 + 2 O2 → CO2 + 2 H2O.Here, one molecule of methane reacts with two molecules of oxygen gas to yield one molecule of carbon dioxide and two molecules of water. Stoichiometry measures these quantitative relationships, and is used to determine the amount of products/reactants that are produced/needed in a given reaction. Describing the quantitative relationships among substances as they participate in chemical reactions is known as reaction stoichiometry. In the example above, reaction stoichiometry measures the relationship between the methane and oxygen as they react to form carbon dioxide and water.Because of the well known relationship of moles to atomic weights, the ratios that are arrived at by stoichiometry can be used to determine quantities by weight in a reaction described by a balanced equation. This is called composition stoichiometry.Gas stoichiometry deals with reactions involving gases, where the gases are at a known temperature, pressure, and volume and can be assumed to be ideal gases. For gases, the volume ratio is ideally the same by the ideal gas law, but the mass ratio of a single reaction has to be calculated from the molecular masses of the reactants and products. In practice, due to the existence of isotopes, molar masses are used instead when calculating the mass ratio.