Naming Chemical Compounds
... Sodium is in group 1 so its oxidation number is 1+. Phosphide is short for phosphorus. Its oxidation number must be negative since it’s the 2nd name so phosphide has a charge of 3-. If the total charge is going to add Na1+ P3up to zero 3 Na1+ and 1 P3- must be ...
... Sodium is in group 1 so its oxidation number is 1+. Phosphide is short for phosphorus. Its oxidation number must be negative since it’s the 2nd name so phosphide has a charge of 3-. If the total charge is going to add Na1+ P3up to zero 3 Na1+ and 1 P3- must be ...
Chemical Reactions
... 1. Determine the correct formulas for all 4. Balance the elements one at a time by the reactants and products. using coefficients. When no coefficient is written, it is assumed to be 1. Begin by 2. Write the skeleton equation by placing the formulas for the reactants on the left balancing elements t ...
... 1. Determine the correct formulas for all 4. Balance the elements one at a time by the reactants and products. using coefficients. When no coefficient is written, it is assumed to be 1. Begin by 2. Write the skeleton equation by placing the formulas for the reactants on the left balancing elements t ...
Chemical Reactions - Waukee Community School District Blogs
... CuCl2 and AgNO3 ______________________ (NH4)3PO4 and CaS______________________ KCl and Ca(NO3)2 ______________________ ...
... CuCl2 and AgNO3 ______________________ (NH4)3PO4 and CaS______________________ KCl and Ca(NO3)2 ______________________ ...
Block 1 - cloudfront.net
... Fe2 + 2H20 2FeOH2 a. Write the six mole ratios that can be derived from this equation. b. How many moles of Iron are needed to form 2.5 mol of FeOH2? ...
... Fe2 + 2H20 2FeOH2 a. Write the six mole ratios that can be derived from this equation. b. How many moles of Iron are needed to form 2.5 mol of FeOH2? ...
Balancing Chemical Equations
... Vocabulary: coefficient, compound, decomposition, double replacement, element, molecule, product, reactant, single replacement, subscript, synthesis ...
... Vocabulary: coefficient, compound, decomposition, double replacement, element, molecule, product, reactant, single replacement, subscript, synthesis ...
Chemistry: Chemical Reactions Notes STOP
... of the products. Remember positive ions keep the same name as their neutral element (Ca2+ is calcium) and negative ions end in –ide (Cl1-‐ is chloride). The exception to this rule is polyatomic ...
... of the products. Remember positive ions keep the same name as their neutral element (Ca2+ is calcium) and negative ions end in –ide (Cl1-‐ is chloride). The exception to this rule is polyatomic ...
Example: Writing a Thermochemical Equation
... N2(g) + 3H2(g) → 2NH3(g); ∆H = -91.8 kJ Suppose you want the thermochemical equation to show what happens when twice as many moles of nitrogen and hydrogen react to produce ammonia. Because double the amount of substances are present, the enthalpy of reaction is doubled (enthalpy is an extensive pro ...
... N2(g) + 3H2(g) → 2NH3(g); ∆H = -91.8 kJ Suppose you want the thermochemical equation to show what happens when twice as many moles of nitrogen and hydrogen react to produce ammonia. Because double the amount of substances are present, the enthalpy of reaction is doubled (enthalpy is an extensive pro ...
Stoichiometry Worksheet #4
... Name _____________________ Stoichiometry Worksheet #4 1. Silver sulfide (Ag2S) is the common tarnish on silver objects. What weight of silver sulfide can be made from 1.23 g of hydrogen sulfide (H2S) obtained from a rotten egg? The reaction of formation of silver sulfide is given below: Ag(s) + H2S( ...
... Name _____________________ Stoichiometry Worksheet #4 1. Silver sulfide (Ag2S) is the common tarnish on silver objects. What weight of silver sulfide can be made from 1.23 g of hydrogen sulfide (H2S) obtained from a rotten egg? The reaction of formation of silver sulfide is given below: Ag(s) + H2S( ...
chemical equation
... solid at room temperature. • However KOH is soluble in water. Substances dissolved in water are said to be aqueous and are indicated as such by an (aq) in the equation. ...
... solid at room temperature. • However KOH is soluble in water. Substances dissolved in water are said to be aqueous and are indicated as such by an (aq) in the equation. ...
Chem 480A
... (There is an interesting problem in going from Equation 5a to Equation 5b which is not usually discussed. In Equation 5a the coefficients of the balanced chemical equation, a, b, etc. have units of moles, so that, for example, cC is moles times Joules per mole which leaves just units of Joules. How ...
... (There is an interesting problem in going from Equation 5a to Equation 5b which is not usually discussed. In Equation 5a the coefficients of the balanced chemical equation, a, b, etc. have units of moles, so that, for example, cC is moles times Joules per mole which leaves just units of Joules. How ...
Chapter #3
... must be the same number of atoms on both sides of the chemical equation. We express this as a series of atom conservation equations, one for each element. For the element A: ...
... must be the same number of atoms on both sides of the chemical equation. We express this as a series of atom conservation equations, one for each element. For the element A: ...
Atomic Structure (history of atom)
... ATOMS of any one ELEMENT are different from those of any other element Atoms of different elements can physically mix together or chemically combine to form compounds Chemical reactions occur when atoms are joined, separated or rearranged Atoms of one element are never changed into atoms of another ...
... ATOMS of any one ELEMENT are different from those of any other element Atoms of different elements can physically mix together or chemically combine to form compounds Chemical reactions occur when atoms are joined, separated or rearranged Atoms of one element are never changed into atoms of another ...
AP Chapter Five Outline
... Example: CH3COOH (aq) + H2O (l) H3O+ (aq) + CH3COO- (aq) B. Base: a substance that increases the concentration of the hydroxide ion, OH-, when dissolved in water C. Electrolytes 1. Strong electrolytes are either ionic compounds (salts or strong bases) or molecular compounds that are strong acids a ...
... Example: CH3COOH (aq) + H2O (l) H3O+ (aq) + CH3COO- (aq) B. Base: a substance that increases the concentration of the hydroxide ion, OH-, when dissolved in water C. Electrolytes 1. Strong electrolytes are either ionic compounds (salts or strong bases) or molecular compounds that are strong acids a ...
Electro-Kinetics
... • The linear relationship between Levich current and the square root of the rotation rate is obvious from the Levich plot. A linear least squares fit of the data produces an equation for the best straight line passing through the data. The specific experiment shown, the electrode area, A, was 0.1963 ...
... • The linear relationship between Levich current and the square root of the rotation rate is obvious from the Levich plot. A linear least squares fit of the data produces an equation for the best straight line passing through the data. The specific experiment shown, the electrode area, A, was 0.1963 ...
CH 11 Chemical Reaction WS #2 (Pre
... 1. What is the Great Barrier Reef and how was it formed? 2. Define chemical reaction3. How is a chemical reaction different from a physical one? Provide examples to support your explanation. 4. Explain how the appearance of the Statue of Liberty is an example of a chemical reaction: 5. What are stal ...
... 1. What is the Great Barrier Reef and how was it formed? 2. Define chemical reaction3. How is a chemical reaction different from a physical one? Provide examples to support your explanation. 4. Explain how the appearance of the Statue of Liberty is an example of a chemical reaction: 5. What are stal ...
Balancing Equations
... Steps to Balancing Equations There are four basic steps to balancing a chemical equation. 1. Write the correct formula for the reactants and the ...
... Steps to Balancing Equations There are four basic steps to balancing a chemical equation. 1. Write the correct formula for the reactants and the ...
Chapter 9 Balancing Equations
... in water. Substances dissolved in water are said to be aqueous and are indicated as such by an (aq) in the equation. ...
... in water. Substances dissolved in water are said to be aqueous and are indicated as such by an (aq) in the equation. ...
Ch 4 Types of Chemical Reactions and Solution Stoichiometry
... you fill the volumetric flask to the mark on the neck with distilled water until the meniscus is reached. Mix. ...
... you fill the volumetric flask to the mark on the neck with distilled water until the meniscus is reached. Mix. ...
Chemical Reactions & Balancing Equations
... This equation is already balanced – same number of atoms of each type of element on each side What if it isn’t balanced already? ...
... This equation is already balanced – same number of atoms of each type of element on each side What if it isn’t balanced already? ...
Reactions Unit Plan
... B. Apply the Law of Conservation of Mass to writing and balancing chemical equations. (MOCLE 1.1.I.a, b) 1. Represent a chemical equation in words and formulas. 2. Balance a chemical equation using the Law of Conservation of ...
... B. Apply the Law of Conservation of Mass to writing and balancing chemical equations. (MOCLE 1.1.I.a, b) 1. Represent a chemical equation in words and formulas. 2. Balance a chemical equation using the Law of Conservation of ...
Writing and Classifying Balanced Equations
... Balance the following equations using coefficients. Subscripts have been completed for you. In the blank to the far right, state the type of reaction. ...
... Balance the following equations using coefficients. Subscripts have been completed for you. In the blank to the far right, state the type of reaction. ...
Chemical Reactions
... a chemical reaction where the formulas of the reactants (on the left) are connected by an arrow with the formulas of the products (on the right). ...
... a chemical reaction where the formulas of the reactants (on the left) are connected by an arrow with the formulas of the products (on the right). ...
Double layer forces
Double layer forces occur between charged objects across liquids, typically water. This force acts over distances that are comparable to the Debye length, which is on the order of one to a few tenths of nanometers. The strength of these forces increases with the magnitude of the surface charge density (or the electrical surface potential). For two similarly charged objects, this force is repulsive and decays exponentially at larger distances, see figure. For unequally charged objects and eventually at shorted distances, these forces may also be attractive. The theory due to Derjaguin, Landau, Verwey, and Overbeek (DLVO) combines such double layer forces together with Van der Waals forces in order to estimate the actual interaction potential between colloidal particles.An electrical double layer develops near charged surfaces (or another charged objects) in aqueous solutions. Within this double layer, the first layer corresponds to the charged surface. These charges may originate from tightly adsorbed ions, dissociated surface groups, or substituted ions within the crystal lattice. The second layer corresponds to the diffuse layer, which contains the neutralizing charge consisting of accumulated counterions and depleted coions. The resulting potential profile between these two objects leads to differences in the ionic concentrations within the gap between these objects with respect to the bulk solution. These differences generate an osmotic pressure, which generates a force between these objects.These forces are easily experienced when hands are washed with soap. Adsorbing soap molecules make the skin negatively charged, and the slippery feeling is caused by the strongly repulsive double layer forces. These forces are further relevant in many colloidal or biological systems, and may be responsible for their stability, formation of colloidal crystals, or their rheological properties.