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1. Which of the following observations is/are examples of chemical change? 1. Sodium chloride melts at...
interpretation of a chemical change and nomenclature report pagea Interpretation of a Chemical Change & Nomenclature...
interpretation of a chemical change and nomenclature report
pagea
Interpretation of a Chemical Change & Nomenclature Report Pages Observations: Reaction Appearance Touch (Hot, cold, or no change) Smell (Describe) Did reaction occur? (yes/no) 1. List the reactions (by number) that: a. formed a precipitate: b. changed color: c. produced a gas: d. were endothermic: e. were exothermic: 2. Name the following: RbCI Fe(NO3)2 Ag2804_ KOH Mg3N2 3. Write the chemical formulas for: Sodium sulfate: Hydrochloric acid: Copper (II) chloride: Calcium...
Gallium metal melts at 29.8°C. At the melting point the density of the solid is 5-90...
Gallium metal melts at 29.8°C. At the melting point the density of the solid is 5-90 g/ml, and that of the liquid is 6.10 g ml. a Does solid gallium expand or contract when it is melted? contracts Explain The same amount of mass occupies space in the liquid phase than in the solid phase. 6. What is the change in volume when 6.10 mL (cm) of solid gallium is melted? Volume by mi Reference Lt 30.0°C.Calculate the change in...
13 Question (3 points) The enthalpy change for a chemical reaction is the sum of the...
13 Question (3 points) The enthalpy change for a chemical reaction is the sum of the energy consumed in breaking bonds and the energy released during bond formation. One way to determine the overall energy change for a chemical reaction is to apply Hess's law to add together a group of reactions which can be arranged such that the chemical equations, when combined, give the overall equation we are trying to characterize Part 1 (1 point) Il See Periodic Table...
The enthalpy change for a chemical reaction is the sum of the energy consumed in breaking...
The enthalpy change for a chemical reaction is the sum of the energy consumed in breaking bonds and the energy released during bond formation. One way to determine the overall energy change for a chemical reaction is to apply Hess's law to add together a group of reactions which can be arranged such that the chemical equations, when combined, give the overall equation we are trying to characterize 3rd attempt See Hint Ad See Periodic Table Part 1 (1 point)...
B. Write a balanced chemical reaction for the following word equations. (7 points) a. Potassium chlorate decompose...
B. Write a balanced chemical reaction for the following word equations. (7 points) a. Potassium chlorate decomposes to form potassium chloride and oxygen. b. Aqueous solutions of copper (II) nitrate and sodium hydroxide react to form solid copper (II) hydroxide and a solution of sodium nitrate. b. Aqueous solutions of copper (II) nitrate and sodium hydroxide react to form solid copper (II) hydroxide and a solution of sodium nitrate. c. Diphosphorous tetrabromide reacts with fluorine gas to produce diphosphorous tetrafluoride...
2. Write the chemical formulas for the following: b. aluminum a. copper c. hydrochloric acid e....
2. Write the chemical formulas for the following: b. aluminum a. copper c. hydrochloric acid e. copper(II) chloride g. sodium hydroxide i. hydrogen k. carbon dioxide m. calcium carbonate o. aluminum chloride q. calcium chloride d. magnesium sulfate – f. sodium bicarbonate h. methane j. sodium chloride 1. oxygen n. magnesium hydroxide p. sodium carbonate — r. water t. carbon monoxide S. sodium v. iron u. sulfur w.iron (II) sulfide y. sulfuric acid x. magnesium chloride z. sodium sulfate 3....
For the following reaction, 0.465 moles of sodium chloride are mixed with 0.537 moles of silver...
For the following reaction, 0.465 moles of sodium chloride are mixed with 0.537 moles of silver nitrate. sodium chloride(aq) +silver nitrate(aq) silver chloride(s)+ sodium nitrate(aq) What is the formula for the limiting reagent? 2req What is the maximum amount of silver chloride that can be produced? moles For the following reaction, 0.259 moles of hydrogen gas are mixed with 0.508 moles of ethylene (C,H) hydrogen(s)+ ethylene (C,H)(8) ethane (CH,)() What is the formula for the limiting reagent? What is the...
Which is an accurate chemical equation (symbolic representation) for this change?
When we expose a block of dry ice, solid carbon dioxide (CO2), to room temperature air, it changes from solid directly into gas. Which is an accurate chemical equation (symbolic representation) for this change?A) CO2 (s) -> C (g) + O2 (g)B) CO2 (s) -> CO2 (g)C) CO2 (s) -> C (g) + 2O (g)
Choose the correct evidence of a chemical reaction for each of the following observations: a) adding...
Choose the correct evidence of a chemical reaction for each of the following observations: a) adding a piece of zinc metal to acid causes bubbles to form an energy change is observed b) mixing two colorless solutions gives a pink solution a gas is produced c) adding potassium metal to water causes flames an energy change is observed d) adding sodium chloride to a silver nitrate solution causes a white powder to form in the solution an insoluble sold is...
1. Convert each of the following names into chemical formulas and then balance the reaction. Make...
1. Convert each of the following names into chemical formulas and then balance the reaction. Make sure you include phases for each reactant and product in the reaction. (s = solid. 1 = liquid, g = gas, aq = aqueous) a. Zinc solid reacts with aqueous silver nitrate to form aqueous zinc nitrate and silver metal. b. Aqueous sodium hydroxide reacts with aqueous oxalic acid to form aqueous sodium oxa- late and liquid water. c. Aqueous lithium phosphate is reacted...
interpretation of a chemical change and nomenclature report
pagea
Interpretation of a Chemical Change & Nomenclature Report Pages Observations: Reaction Appearance Touch (Hot, cold, or no change) Smell (Describe) Did reaction occur? (yes/no) 1. List the reactions (by number) that: a. formed a precipitate: b. changed color: c. produced a gas: d. were endothermic: e. were exothermic: 2. Name the following: RbCI Fe(NO3)2 Ag2804_ KOH Mg3N2 3. Write the chemical formulas for: Sodium sulfate: Hydrochloric acid: Copper (II) chloride: Calcium...
Gallium metal melts at 29.8°C. At the melting point the density of the solid is 5-90 g/ml, and that of the liquid is 6.10 g ml. a Does solid gallium expand or contract when it is melted? contracts Explain The same amount of mass occupies space in the liquid phase than in the solid phase. 6. What is the change in volume when 6.10 mL (cm) of solid gallium is melted? Volume by mi Reference Lt 30.0°C.Calculate the change in...
13 Question (3 points) The enthalpy change for a chemical reaction is the sum of the energy consumed in breaking bonds and the energy released during bond formation. One way to determine the overall energy change for a chemical reaction is to apply Hess's law to add together a group of reactions which can be arranged such that the chemical equations, when combined, give the overall equation we are trying to characterize Part 1 (1 point) Il See Periodic Table...
The enthalpy change for a chemical reaction is the sum of the energy consumed in breaking bonds and the energy released during bond formation. One way to determine the overall energy change for a chemical reaction is to apply Hess's law to add together a group of reactions which can be arranged such that the chemical equations, when combined, give the overall equation we are trying to characterize 3rd attempt See Hint Ad See Periodic Table Part 1 (1 point)...
B. Write a balanced chemical reaction for the following word equations. (7 points) a. Potassium chlorate decomposes to form potassium chloride and oxygen. b. Aqueous solutions of copper (II) nitrate and sodium hydroxide react to form solid copper (II) hydroxide and a solution of sodium nitrate. b. Aqueous solutions of copper (II) nitrate and sodium hydroxide react to form solid copper (II) hydroxide and a solution of sodium nitrate. c. Diphosphorous tetrabromide reacts with fluorine gas to produce diphosphorous tetrafluoride...
2. Write the chemical formulas for the following: b. aluminum a. copper c. hydrochloric acid e. copper(II) chloride g. sodium hydroxide i. hydrogen k. carbon dioxide m. calcium carbonate o. aluminum chloride q. calcium chloride d. magnesium sulfate – f. sodium bicarbonate h. methane j. sodium chloride 1. oxygen n. magnesium hydroxide p. sodium carbonate — r. water t. carbon monoxide S. sodium v. iron u. sulfur w.iron (II) sulfide y. sulfuric acid x. magnesium chloride z. sodium sulfate 3....
For the following reaction, 0.465 moles of sodium chloride are mixed with 0.537 moles of silver nitrate. sodium chloride(aq) +silver nitrate(aq) silver chloride(s)+ sodium nitrate(aq) What is the formula for the limiting reagent? 2req What is the maximum amount of silver chloride that can be produced? moles For the following reaction, 0.259 moles of hydrogen gas are mixed with 0.508 moles of ethylene (C,H) hydrogen(s)+ ethylene (C,H)(8) ethane (CH,)() What is the formula for the limiting reagent? What is the...
Choose the correct evidence of a chemical reaction for each of the following observations: a) adding a piece of zinc metal to acid causes bubbles to form an energy change is observed b) mixing two colorless solutions gives a pink solution a gas is produced c) adding potassium metal to water causes flames an energy change is observed d) adding sodium chloride to a silver nitrate solution causes a white powder to form in the solution an insoluble sold is...
1. Convert each of the following names into chemical formulas and then balance the reaction. Make sure you include phases for each reactant and product in the reaction. (s = solid. 1 = liquid, g = gas, aq = aqueous) a. Zinc solid reacts with aqueous silver nitrate to form aqueous zinc nitrate and silver metal. b. Aqueous sodium hydroxide reacts with aqueous oxalic acid to form aqueous sodium oxa- late and liquid water. c. Aqueous lithium phosphate is reacted...
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