Flame Test (known) See the list of ions to see the results of the flame test. Record Your Observations

Q: What does the graph represent?(Select the correct answer below) Reactants AH Phodacts Peaction…

A: Chemical reactions are classified into two types on the basis of heat involved, exothermic and…

Q: All changes saved 18. Why do you cook with metal pots and pans? Metal has a low heat capacity, which…

A: Heat capacity is amount of heat required to raise the temperature of substance by one degree Celsius

Q: When hot tea is poured into both a steel cup and a styrofoam cup, the steel cup quickly feels hot to…

A: Since metal is a good conductor of heat due to free electrons in the metal.

Q: If burning a substance in pure oxygen gas makes the flame glow brighter, predict what would happen…

A: burning a substance in pure oxygen gas makes the flame glow brighter,   if you put the burning…

Q: Calculate the electrical energy (d

A: ∆G∘ = work done by the cell ∆G∘ = - nFEocell  where n = 2 ( number of moles of electrons…

Q: the

A: According to the question, Katrina inserted a key into her car’s ignition, then she turns the key,…

Q: What is detonation?

A: Detonation is a type of combustion involving a supersonic exothermic front accelerating through a…

Q: Evaluate each pair of statements and choose from the following which condition is applicable:…

A: A multiple choice question based on general chemistry that is to be accomplished.

Q: Which of the following is not a heating Equipment? а. Electric Furnace O b. Desiccator С. Burners O…

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: 1. An exothermic reaction is taking place in a test tube , what would you expect to feel when you…

A: An exothermic reaction is a type of chemical reaction in which energy is released into the…

Q: 26. A student constructs the device shown to measure the change in temperature that occurs when two…

A: According to the law of calorimetry when two substance of difference temperature are kept in contact…

Q: Explain why when hot, the CuO sank to the bottom of the beaker and why if it cooled too much, it…

A: A question based on general chemistry, which is to be accomplished.

Q: What what happens when you heat an iron rod on a flame

A: Given An iron rod, whose behavior when exposed to flame has to be discussed.

Q: Identify which of the two experiments is an endothermic and exothermic reaction. Explain how each…

A: Given , Experiment no 1 :  Elephant Toothpaste Experiment no 1 : Ice breaker

Q: As the height increases, so does… A. Potential energy increase B. Mechanical energy increase…

A: To determine:Whether the potential energy or mechanical energy or thermal or kinetic energy…

Q: Which of the following processes is the most common method of aging

A: The most common method of aging is        Oxidation

Q: Solid fuels are not easy to transport a. True, it has a very low ignition temperature b. True, the…

A: Solid fuels are wood, charcoal, coal, dry dunk etc.

Q: You should have noticed that the Styrofoam ball rolled slightly towards the rod and then appeared to…

A: Rubbing the plastic rod, the rod will get an electrical charge. Which means there is a build up of…

Q: In the Styrofoam ball investigation, it is likely that the charges on the ball and rod are

A: In this question we have to explain the accurate reason of attraction between styrofoam and ball by…

Q: Define the following terms.  Primary standard

A: Standard solution: The solution that contains accurately known concentration of its solute particles…

Q: Bunsen burner. Draw the parts of the Bunsen burmer and determine the function of each part:

A: The diagram of the Bunsen burner is as follows:

Q: Would you agree to buy 1.23 x 1021 gold atoms for $17? Explain why or why not, showing all work. The…

A:

Q: It is not possible to ignite diethyl ether at temperatures lower than +35 degrees Celsius.

A: Answer: True Formula: C4H10O / (C2H5)2O Molecular mass: 74.1 Boiling point: 35°C Auto-ignition…

Q: Electroplating a metal is an example of physical change.

A: Electroplating changes physical, chemical and mechanical properties. But electroplating a metal is…

Q: Hs0, (eat) refu HS0, teat)

A: Here the product will be obtained by esterification reaction in acidic medium. The mechanism is…

Q: Which of the following is a best practice in case a fire breaks out in a laboratory? (A) Call for…

A: In chemistry laboratory many inflammable and hazardous materials are present. Hence, if by somehow…

Q: The most important indicator of efficiency for a chemical manufacturing company would be

A: Actual yield is defined as the amount that is produced in a chemical reaction. Percent yield is…

Q: Bio energy increases methane gases which are harmful to earth's ozone layer. Select one: O True O…

A: Bioenergy refers to the gases that are generated from natural organic sources, usually called…

Q: Recycling aluminum consumes 95% less energy than refining the ore. Consider a material that requires…

A: Energy used in Refining 1kg of aluminium = 17kWh Energy used in Recycling 1kg of aluminium = 17kWh-…

Q: Write a balanced equation for each of the following decomposition reactions.   Tin(IV) carbonate…

A:

Q: If the coffee cup calorimeter had a large hole in the lid that allowed heat to escape, how would the…

A: If the coffee cup calorimeter had a large hole in the lid that allowed heat to escape, how would the…

Q: Which of the following factors affects the speed at which a candle burns? a) air temperature b) type…

A: Speed of candle depends upon type of candle.

Q: student is planning to determine the specific heat capacity of iron. To do this experiment the…

A:

Q: What has more potential energy in the the detonation of TNT, an explosive? a.Both reactants and…

A: An explosive is a chemical substance that contains a great amount of potential energy. During an…

Q: Classify each change as physical or chemical. A silver surface becomes tarnished after exposure to…

A:

Q: When you turn on a flashlight that uses batteries, what is the energy transformations taking place?…

A: According to the energy conservation rule, the total energy of the universe remains constant. Energy…

Q: 35 Just do the Dot diagram and shape for these not everything the book asks, show work

A: Hybridization is a hypothetical concept which tells the geometry and shape of the molecule. The…

Q: Experimental background of Specific heat of Copper lead and Aluminum

A: A measure of the efficiency with which a substance can store this heat energy is known as specific…

Q: When iron rusts, solid iron reacts with gaseous oxygen to form solid iron(III) oxide. Write a…

A: Rusting of iron refers to the formation of rust, a mixture of iron oxides, on the surface of iron…

Q: Each fuel gas has a different ratio of carbon to hydrogen atoms, though amounts of oxygen are needed…

A: There are various gases such as acetylene,  natural gas, propane, propylene, and even hydrogen can…

Q: Differentiate waste from recycling. Provide example each.

A: There is no comparison source for waste and recycling because recycling is a process of conversion…

Q: Volumetric Flask Reagent Bottle

A: laboratory apparatus and reagents

Q: company’s energy cost

A: We know that 1 HP=746 watt

Q: What is the time required to produce Select one: a. 3.10 hours b. 2.29 hours c. 1.10 hours d. 4.86…

A:

Q: Explanation about specific heat of Copper lead and Aluminum

A: The specific heat of a substance is the amount of heat required to increase the temperature by one…

Q: 14. Carbon is the link between the kiln gas and the lime. true or false

A: Carbon is the link between the kiln gas and the lime.

Q: A known volume of hot water is placed in a calorimeter and the system is allowed to equalize the…

A: Initially, hot water is added to the calorimeter and the system is allowed to equalize the…