balancing chemical equations worksheet
... 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 statements and write balanced chemical equations. The first has been completed as an example Example grey sodium me ...
... 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 statements and write balanced chemical equations. The first has been completed as an example Example grey sodium me ...
Final Exam Review – Free Response Section Name: 1. A sample of
... 3. All binary compounds of the halogens (other than F) with metals are soluble, except those of Ag, Hg(I), and Pb. Pb halides are soluble in hot water.) 4. All sulfates are soluble, except those of barium, strontium, calcium, lead, silver, and mercury (I). The latter three are slightly ...
... 3. All binary compounds of the halogens (other than F) with metals are soluble, except those of Ag, Hg(I), and Pb. Pb halides are soluble in hot water.) 4. All sulfates are soluble, except those of barium, strontium, calcium, lead, silver, and mercury (I). The latter three are slightly ...
Ch 12 Electrolysis in water
... Electrolysis is a fairly simple process. There are two plates in a solution, and an electric current is sent through. The plates are the cathode, where reduction takes place, and the anode, where oxidation takes place. cathode-reduction anode-oxidation ...
... Electrolysis is a fairly simple process. There are two plates in a solution, and an electric current is sent through. The plates are the cathode, where reduction takes place, and the anode, where oxidation takes place. cathode-reduction anode-oxidation ...
Year 11 Chemistry Balancing Equations
... a. Dilute hydrochloric acid HCl is added to solid magnesium hydroxide Mg(OH)2, producing water and the soluble salt magnesium chloride MgCl2. b. Dilute nitric acid HNO3 is added to solid calcium carbonate CaCO3, producing bubbles of carbon dioxide, water, and the soluble salt calcium nitrate Ca(NO3) ...
... a. Dilute hydrochloric acid HCl is added to solid magnesium hydroxide Mg(OH)2, producing water and the soluble salt magnesium chloride MgCl2. b. Dilute nitric acid HNO3 is added to solid calcium carbonate CaCO3, producing bubbles of carbon dioxide, water, and the soluble salt calcium nitrate Ca(NO3) ...
Formulas and Equations
... b. an alkaline metal c. an oxygen family d. a halogen 7. Identify the substance below, which is SOLUBLE in water. Remember ionic substances are soluble in water. Circle all that apply. A. MgSO4 ...
... b. an alkaline metal c. an oxygen family d. a halogen 7. Identify the substance below, which is SOLUBLE in water. Remember ionic substances are soluble in water. Circle all that apply. A. MgSO4 ...
1 1. Give two reasons why a luminous flame is not used for heating
... b) Calculate the molar enthalpy of formation of butane C4H10 from its elements in their normal states at standard temperature and pressure. 2mks*UG* When calcium carbonate was added to a solution of dry hydrogen chloride in methyl benzene there was no observable reaction explain. 2mks*UG* The chief ...
... b) Calculate the molar enthalpy of formation of butane C4H10 from its elements in their normal states at standard temperature and pressure. 2mks*UG* When calcium carbonate was added to a solution of dry hydrogen chloride in methyl benzene there was no observable reaction explain. 2mks*UG* The chief ...
File
... 2. a) Be able to describe the motion of particles in the gaseous state using the kinetic molecular theory. b) Use this type of description to describe the changes in volume, or pressure of a gas if another variable (V, P or T) is changed. 3. Describe the quantitative relationships which exist among ...
... 2. a) Be able to describe the motion of particles in the gaseous state using the kinetic molecular theory. b) Use this type of description to describe the changes in volume, or pressure of a gas if another variable (V, P or T) is changed. 3. Describe the quantitative relationships which exist among ...
nomenclature review
... ________ Metal is heated until it turns red. ________ Aluminum & oxygen react to produce aluminum oxide. ________ An iron nail rusts. ________ Copper metal is hammered into a thin sheet. ________ An ice cube melts. ________ Magnesium chloride is dissolved in water. ________ Hydrochloric acid neutral ...
... ________ Metal is heated until it turns red. ________ Aluminum & oxygen react to produce aluminum oxide. ________ An iron nail rusts. ________ Copper metal is hammered into a thin sheet. ________ An ice cube melts. ________ Magnesium chloride is dissolved in water. ________ Hydrochloric acid neutral ...
TYPES OF SOLUTION CHEMICAL REACTIONS
... by doing a titration (controlled mixing) between an acid and a base. b. titrant—the standard solution of known concentration whose volume is accurately delivered from a buret. c. analyte—the substance being analyzed; with a known formula, mass or volumed. indicator- a substance added at the beginnin ...
... by doing a titration (controlled mixing) between an acid and a base. b. titrant—the standard solution of known concentration whose volume is accurately delivered from a buret. c. analyte—the substance being analyzed; with a known formula, mass or volumed. indicator- a substance added at the beginnin ...
Summary notes - Kelso High School
... You can find out if a substance is an acid or and alkali by dissolving it in water and adding an indicator. An indicator is a chemical which changes colour in different pH environments so by matching the colour of the solution to the colour chart, the pH of the substance can be found. The two most c ...
... You can find out if a substance is an acid or and alkali by dissolving it in water and adding an indicator. An indicator is a chemical which changes colour in different pH environments so by matching the colour of the solution to the colour chart, the pH of the substance can be found. The two most c ...
NAME
... e) solid aluminum and hydrochloric acid react to form aluminum chloride and hydrogen gas. ...
... e) solid aluminum and hydrochloric acid react to form aluminum chloride and hydrogen gas. ...
Name__________________________ Period_______ Word
... Write a balanced chemical equation to represent each of the following chemical reactions. Replace the appropriate reaction conditions in the equation. (Don’t forget your diatomic molecules) 1. Iron (solid) + sulfur (solid) when heated → iron (II) sulfide (solid) ...
... Write a balanced chemical equation to represent each of the following chemical reactions. Replace the appropriate reaction conditions in the equation. (Don’t forget your diatomic molecules) 1. Iron (solid) + sulfur (solid) when heated → iron (II) sulfide (solid) ...
educator exam series
... (b) Name one gas which escapes from the chamber containing magnesium powder. Give a reason for your answer (1mk) ...
... (b) Name one gas which escapes from the chamber containing magnesium powder. Give a reason for your answer (1mk) ...
Stoichiometry - Cloudfront.net
... and produced 3.800 g of CO2 and 1.040 g of H2O. Assuming the compound contains only carbon, hydrogen, and oxygen, determine the empirical formula of the unknown compound. 7. A 105.5 mg sample of a white substance is suspected to be cocaine, C 17H21NO4. The substance formed 279.3 mg of CO2 and 66.46 ...
... and produced 3.800 g of CO2 and 1.040 g of H2O. Assuming the compound contains only carbon, hydrogen, and oxygen, determine the empirical formula of the unknown compound. 7. A 105.5 mg sample of a white substance is suspected to be cocaine, C 17H21NO4. The substance formed 279.3 mg of CO2 and 66.46 ...
SODIUM HYDROGEN CARBONATE
... about 15% of Na2CO3 was produced by the Solvay process. The remainder was mined from large deposits of trona, Na2CO3∙NaHCO3∙H2O, which were discovered in 1938 near the Green River in Wyoming. It is cheaper to mine Na2CO3 than to manufacture it. Furthermore, the CaCl2 byproduct of the Solvay process ...
... about 15% of Na2CO3 was produced by the Solvay process. The remainder was mined from large deposits of trona, Na2CO3∙NaHCO3∙H2O, which were discovered in 1938 near the Green River in Wyoming. It is cheaper to mine Na2CO3 than to manufacture it. Furthermore, the CaCl2 byproduct of the Solvay process ...
MATERIAL SAFETY DATA SHEET MATERIAL
... WASTE DISPOSAL METHOD: All wastes will be sent to an appropriate, approved disposal facility following standard operating procedures. EPA HAZARDOUS WASTE #: None ...
... WASTE DISPOSAL METHOD: All wastes will be sent to an appropriate, approved disposal facility following standard operating procedures. EPA HAZARDOUS WASTE #: None ...
10 TEST 2 (of 3)
... and a temperature of 25 ºC. Draw a similar picture showing what would happen if the volume were reduced to 0.5 L and the temperature increased to 250 ºC. What would the ...
... and a temperature of 25 ºC. Draw a similar picture showing what would happen if the volume were reduced to 0.5 L and the temperature increased to 250 ºC. What would the ...
LIMITING REACTANT LAB
... 2) Write formulas for the following: a) Calcium sulfite _____________________ ...
... 2) Write formulas for the following: a) Calcium sulfite _____________________ ...
snc 2do unit: chemistry unit test review questions
... 9. What type of substances antacids and how can they be useful to us? 10. Classify each of the following substances as an acid, base or neutral: a) HCl(aq) b) NaOH (aq) c) NaCl d) H2SO4 (aq) 11. Which of the following is an example of a chemical change? A) the melting of ice B) the rusting of a car ...
... 9. What type of substances antacids and how can they be useful to us? 10. Classify each of the following substances as an acid, base or neutral: a) HCl(aq) b) NaOH (aq) c) NaCl d) H2SO4 (aq) 11. Which of the following is an example of a chemical change? A) the melting of ice B) the rusting of a car ...
students - Teach-n-Learn-Chem
... Temp. at which we perform rxn. might be given. The catalyst used might be given. ...
... Temp. at which we perform rxn. might be given. The catalyst used might be given. ...
word-doc Practice for the final exam!
... d. pure substance e. solid 3. If matter is uniform throughout, cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is ________. a. a heterogeneous mixture b. an element c. a homogeneous mixture d. a compound e. a mixt ...
... d. pure substance e. solid 3. If matter is uniform throughout, cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is ________. a. a heterogeneous mixture b. an element c. a homogeneous mixture d. a compound e. a mixt ...
UNIT 1 - MATTER AND CHEMICAL BONDING
... of carbon. If the molar mass of this compound is 28.06 g/mol, what is its molecular formula? 5. Calculate the percentage composition of each of the following: a) PbI2 b) NH4NO3 6. Balance the following equations: a) NH3(g) + O2 (g) NO (g) + H2O(l) b) NO2(g) + H2O(l) HNO3(aq) + NO(g) c) C12H22O11 ...
... of carbon. If the molar mass of this compound is 28.06 g/mol, what is its molecular formula? 5. Calculate the percentage composition of each of the following: a) PbI2 b) NH4NO3 6. Balance the following equations: a) NH3(g) + O2 (g) NO (g) + H2O(l) b) NO2(g) + H2O(l) HNO3(aq) + NO(g) c) C12H22O11 ...
Name ……………………………..………...… …….. Index No
... Select one of the detergents that would be suitable for washing in water containing magnessium chloride. Explain. (1mks) ...
... Select one of the detergents that would be suitable for washing in water containing magnessium chloride. Explain. (1mks) ...
Sodium hydroxide
Sodium hydroxide (NaOH), also known as lye and caustic soda, is an inorganic compound. It is a white solid and highly caustic metallic base and alkali salt which is available in pellets, flakes, granules, and as prepared solutions at a number of different concentrations. Sodium hydroxide forms an approximately 50% (by weight) saturated solution with water.Sodium hydroxide is soluble in water, ethanol and methanol. This alkali is deliquescent and readily absorbs moisture and carbon dioxide in air.Sodium hydroxide is used in many industries, mostly as a strong chemical base in the manufacture of pulp and paper, textiles, drinking water, soaps and detergents and as a drain cleaner. Worldwide production in 2004 was approximately 60 million tonnes, while demand was 51 million tonnes.