PART A: If a test tube is placed over a flame, the gas that is collected...
PART A:
If a test tube is placed over a flame, the gas that is collected
creates a combustion reaction.
What is the balanced equation for the reaction?
PART B:
The vinegar and baking soda react to generate carbon dioxide gas. The gas is then bubbled into the limewater. The first gas to come out of the tube will be mostly air until the large test tube fills up with the carbon dioxide gas.
a. Write a balanced equation for the precipitation reaction.
b. Which product in the above reaction is the precipitate?
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PART A:
If a test tube is placed over a flame, the gas that is collected...
Activity 5: Combustion Reaction Explain why water appears on the inside of the glass test tube....
Activity 5: Combustion Reaction Explain why water appears on the inside of the glass test tube. Write a balanced equation for the combustion reaction. Activity 6: Precipitation Reaction Write a balanced equation for the precipitation reaction. Which product in the above reaction is the precipitate?
Part II. Combustion 2. Pour by holding a burning splint over the heptane Use a test tube holder t...
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please help me with balanced chemical equation and percent yield above is my trial. Data and...
please help me with balanced chemical equation and percent yield
above is my trial.
Data and Calculations, Part 2: 28. 27 used or + 26.18 Data for Trial #1: 1. 1987 16 empty flask: 19A Mass of flask plus baking soda: Mass of baking soda (calculated): _1.49 11 49.5/ 1.49 Mass of graduated cylinder with 50mL of vinegar: Mass of graduated cylinder after vinegar is poured out: Mass of vinegar transferred (calculated): 69.89 & sloos 20.38 49.51 e 77.11 50.33...
A representative formula for a wax is C, HWrite a balanced equation for the combustion of...
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f. Place about 2 mL of iron (III) chloride solution, FeCl3(aq), in a test tube. Add...
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CHEM 110 Online Lab Instructions for Exp 6 Molar Masses as Conversion Factors Part 1: The Chemical Reaction LET'S WATCH THE BALLOON INFLATE Let us do a simple "chemical reaction and see what happens when these two common household chemicals are put together: vinegar (HC,H,O2 -aqueous acetic acid solution) and baking soda (NaHCO, --sodium bicarbonate). Vinegar is a solution of acetic acid and water. Vinegar is used in salad dressings, to dye eggs, and in other cooking uses. Baking soda...
Part II. Combustion 2. Pour by holding a burning splint over the heptane Use a test tube holder to invert a test tube over the flame produced by the bep- until it from the heptane flame. Quickly move the inverted test tube away from the flame and insert the burning splint into the inverted test tube. What happened to the burning splint? Carefully note ontop of itaud for couneseconds Hen test tube turtend e block colo up over tents. What...
C. (NH), (ag) + HBr (ag) d. Evidence of reaction: 3. Combustion Reactions - If an inverted test tube is held over a sample of glucose, CH,O. while it is combusted condensation is seen midway up the test tube. When a burning splint is placed into the test tube the flame is extinguished. 2. What is the identity of the gas? b. Write a balanced equation for the reaction that took place. Be sure to include state labels on your...
Part IV. Decomposition Into a test tube, place about 2 mL of 3% hydrogen peroxide along with a pea size amount of Mnog Manganese dioxide, the common name, is used as a catalyst. Remember, that a catalyst is used to lower the activation energy of a reaction, thereby speeding up the reaction. It does not get con- sumed in the reaction and therefore is not part of your balanced chemical equation. It is written above the reaction arrow in a...
1) You are tasked with identifying an unknown gas. Upon exposing the gas to an open flame, it makes an audible “pop” sound. What is the identity of the gas? 2)You are building a heating curve for an unknown substance. On a molecular level explain what is happening when the heating curve plateaus (that is, it flattens and does not increase of decrease in temperature for an amount of time). 3) Write a complete and balanced reaction for the combustion...
please help me with balanced chemical equation and percent yield
above is my trial.
Data and Calculations, Part 2: 28. 27 used or + 26.18 Data for Trial #1: 1. 1987 16 empty flask: 19A Mass of flask plus baking soda: Mass of baking soda (calculated): _1.49 11 49.5/ 1.49 Mass of graduated cylinder with 50mL of vinegar: Mass of graduated cylinder after vinegar is poured out: Mass of vinegar transferred (calculated): 69.89 & sloos 20.38 49.51 e 77.11 50.33...
A representative formula for a wax is C, HWrite a balanced equation for the combustion of the wax of the candle. CHO+O, Methane is burned as a source of energy. The formula for methane is CH, Again, write a balanced equation for the combustion of methane. CH, +0,- Most combustion gives off energy and the reaction is called an exothermic reaction. On which side of the equation will this energy be shown? To illustrate this redo the equation describing the...
f. Place about 2 mL of iron (III) chloride solution, FeCl3(aq), in a test tube. Add about 10 drops of potassium thiocyanate solution, KSCN(aq). Observe any changes. Place a small amount of solid sodium bicarbonate, NaHCO3. also known as baking soda) in the bottom of a dry test tube. Cover the bottom to a depth of about 1 em. Quickly pour in about 2 mL of acetic acid, HC2H309. Observe any changes. There are really two reactions occurring here, one...
CHEM 110 Online Lab Instructions for Exp 6 Molar Masses as Conversion Factors Part 1: The Chemical Reaction LET'S WATCH THE BALLOON INFLATE Let us do a simple "chemical reaction and see what happens when these two common household chemicals are put together: vinegar (HC,H,O2 -aqueous acetic acid solution) and baking soda (NaHCO, --sodium bicarbonate). Vinegar is a solution of acetic acid and water. Vinegar is used in salad dressings, to dye eggs, and in other cooking uses. Baking soda...
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