please help me with the classifications of either a physical change
or chemical change. thank you!!!Homework Answers
If there is any colour change or odour change, it's the sign of a chemical change. In 2 a and b, CO2 will evolve which has a pungent smell or strong acidic smell.
The last two are also chemical changes as they involve colour change.
Rest all are correct.
Comment if any problem
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please help me with the classifications of either a physical change
or chemical change. thank you!!!...
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...
Chemical Reactions For each reaction you observed, the names of the reactants and products are given...
Chemical Reactions For each reaction you observed, the names of the reactants and products are given below. You must: 1. Write the correct formula for each reactant and product. Balance each equation. 2. A. Combination reactions magnesium oxide 1. Magnesium + oxygen (unbalanced) Mg+ O, MgO sulfur dioxide 2. Sulfur + oxygen B. Analysis of the Copper Content of a Penny po zinc chloride + hydrogen zinc + hydrochloric acid HCI ZnCl, 1. (unbalanced) н, Zn + C. Single Replacement...
Write a balanced chemical equation for each reaction in the experiment. Include the states of all...
Write a balanced chemical equation for each reaction in the experiment. Include the states of all materials. the precipitation reaction between copper(II) nitrate and sodium hydroxide making a precipitate of copper(II) hydroxide and aqueous sodium nitrate the single displacement and oxidation-reduction reaction between excess aqueous hydrochloric acid and aluminum metal to make aqueous aluminum chloride and hydrogen gas the single displacement and oxidation-reduction reaction between aqueous copper(II) chloride and aluminum metal to make aqueous aluminum chloride and metallic copper the...
1. Add hydrochloric acid (HCl) to magnesium metal in a test tube. Observations: &
1. Add hydrochloric acid (HCl) to magnesium metal in a test tube. Observations: Reactants: Products: Chemical Equation: 2. Add calcium nitrate to sodium carbonate in a test tube. Observations: Reactants: Products: Chemical Equation: 3. Add iron (III) nitrate to sodium hydroxide in a test tube. Observations: Reactants: Products: Chemical Equation: 4. Add copper (II) nitrate to ammonium hydroxide in a test tube. For writing the equation, the Roman numeral indicates the charge of copper. Caution: ammonium hydroxide produces very pungent...
i only need g, h and I please Classifying Chemical Reactions continued Classifying Chemical Reactions continued...
i
only need g, h and I please
Classifying Chemical Reactions continued Classifying Chemical Reactions continued 3. Write a balanced chemical equation for each reaction and classify the reaction. a. Copper metal heated with oxygen gives solid copper(II)oxide. 4 cu +02 → 2420 (5) combination reachon b. Mixing ammonium nitrate and sodium hydroxide solutions gives aqueous sodium nitrate, ammonia gas, and water. NHL NO2+ NaOH -> Na NO₃(aq) + NH₃ (9)+H₂O (e) double replacement c. Mercury(II) nitrate solution reacts with...
please help! 151 Expt 8 - Chemical Properties PreLab Questions: Write balanced chemical equations for the...
please help!
151 Expt 8 - Chemical Properties PreLab Questions: Write balanced chemical equations for the following double displacement reactions. CIRCLE any precipitates that form. If a precipitate or liquid forms, also write a net ionic equation. 1) potassium iodide + silver nitrate Equation: Net ionic equation, if precipitate forms: 2) sodium carbonate + silver nitrate Equation: Net ionic equation, if precipitate forms: 3) ammonium chloride + silver nitrate Equation: Net ionic equation, if precipitate forms: 4) hydrochloric acid +...
How do you calculate the empirical and molecular formula of this unknown compound ? How do...
How do you calculate the empirical and molecular formula of
this unknown compound ? How do you calculate the molecular weight
?
Computer Unknown # 8 Physical Properties ВP Colorless Liquid Sweet odor C 77.75 % H-7.46 % 200-204 °C Sodium Fusion Test A portion of the sodium fusion filtrate was treated with ferrous sulfate and heated. It was then acidified with dilute sulfuric acid. No observable change was noticed. Another portion of the sodium fusion filtrate was treated with...
please help me out answering thsese comp,etely and corrctly. thanks. lab Write balanced chemical equations for...
please help me out answering thsese comp,etely and corrctly.
thanks.
lab Write balanced chemical equations for the following chemical reactions. NOTE: some of may already be balanced · Lehium metal and water react to produce lithium hydroxide and hydrogen gas. 2. When solutions of silver nitrate and potassium bromide are combined, solid silver bromide 3. Suilturic acid is produced when sulfur trioxide reacts with water. HINT: Sulfturic acid is Me reaction of iron metal with steam produces an iron compound....
Write a balanced chemical equation for each of the following reactions: 1. Hydrogen + chlorine hydrogen...
Write a balanced chemical equation for each of the following reactions: 1. Hydrogen + chlorine hydrogen chloride 2. Hydrogen + nitrogen — ammonia 3. Carbon + steam → carbon monoxide + hydrogen 4. Calcium oxide + water calcium hydroxide 5. Phosphorus + oxygen → diphosphorus pentoxide 6. Aluminum sulfate + calcium hydroxide → aluminum hydroxide + calcium sulfate 7. Aluminum + oxygen aluminum oxide 8. Sodium peroxide + water sodium hydroxide + oxygen 9. Copper + concentrated sulfuric acid →...
What is the empirical and molecular formula ? What is the molecular weight ? Computer Unknown...
What is the empirical and molecular formula ? What is the
molecular weight ?
Computer Unknown # 8 Physical Properties ВP Colorless Liquid Sweet odor C 77.75 % H 7.46 % 200-204 °C Sodium Fusion Test A portion of the sodium fusion filtrate was treated with ferrous sulfate and heated. It was then acidified with dilute sulfuric acid. No observable change Another portion of the sodium fusion filtrate was treated with lead acetate. No observable change was noticed. was noticed....
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...
Chemical Reactions For each reaction you observed, the names of the reactants and products are given below. You must: 1. Write the correct formula for each reactant and product. Balance each equation. 2. A. Combination reactions magnesium oxide 1. Magnesium + oxygen (unbalanced) Mg+ O, MgO sulfur dioxide 2. Sulfur + oxygen B. Analysis of the Copper Content of a Penny po zinc chloride + hydrogen zinc + hydrochloric acid HCI ZnCl, 1. (unbalanced) н, Zn + C. Single Replacement...
i
only need g, h and I please
Classifying Chemical Reactions continued Classifying Chemical Reactions continued 3. Write a balanced chemical equation for each reaction and classify the reaction. a. Copper metal heated with oxygen gives solid copper(II)oxide. 4 cu +02 → 2420 (5) combination reachon b. Mixing ammonium nitrate and sodium hydroxide solutions gives aqueous sodium nitrate, ammonia gas, and water. NHL NO2+ NaOH -> Na NO₃(aq) + NH₃ (9)+H₂O (e) double replacement c. Mercury(II) nitrate solution reacts with...
please help!
151 Expt 8 - Chemical Properties PreLab Questions: Write balanced chemical equations for the following double displacement reactions. CIRCLE any precipitates that form. If a precipitate or liquid forms, also write a net ionic equation. 1) potassium iodide + silver nitrate Equation: Net ionic equation, if precipitate forms: 2) sodium carbonate + silver nitrate Equation: Net ionic equation, if precipitate forms: 3) ammonium chloride + silver nitrate Equation: Net ionic equation, if precipitate forms: 4) hydrochloric acid +...
How do you calculate the empirical and molecular formula of
this unknown compound ? How do you calculate the molecular weight
?
Computer Unknown # 8 Physical Properties ВP Colorless Liquid Sweet odor C 77.75 % H-7.46 % 200-204 °C Sodium Fusion Test A portion of the sodium fusion filtrate was treated with ferrous sulfate and heated. It was then acidified with dilute sulfuric acid. No observable change was noticed. Another portion of the sodium fusion filtrate was treated with...
please help me out answering thsese comp,etely and corrctly.
thanks.
lab Write balanced chemical equations for the following chemical reactions. NOTE: some of may already be balanced · Lehium metal and water react to produce lithium hydroxide and hydrogen gas. 2. When solutions of silver nitrate and potassium bromide are combined, solid silver bromide 3. Suilturic acid is produced when sulfur trioxide reacts with water. HINT: Sulfturic acid is Me reaction of iron metal with steam produces an iron compound....
Write a balanced chemical equation for each of the following reactions: 1. Hydrogen + chlorine hydrogen chloride 2. Hydrogen + nitrogen — ammonia 3. Carbon + steam → carbon monoxide + hydrogen 4. Calcium oxide + water calcium hydroxide 5. Phosphorus + oxygen → diphosphorus pentoxide 6. Aluminum sulfate + calcium hydroxide → aluminum hydroxide + calcium sulfate 7. Aluminum + oxygen aluminum oxide 8. Sodium peroxide + water sodium hydroxide + oxygen 9. Copper + concentrated sulfuric acid →...
What is the empirical and molecular formula ? What is the
molecular weight ?
Computer Unknown # 8 Physical Properties ВP Colorless Liquid Sweet odor C 77.75 % H 7.46 % 200-204 °C Sodium Fusion Test A portion of the sodium fusion filtrate was treated with ferrous sulfate and heated. It was then acidified with dilute sulfuric acid. No observable change Another portion of the sodium fusion filtrate was treated with lead acetate. No observable change was noticed. was noticed....
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