Physical changes Chemical changes Answer Bank The candle wick burns. The glass jar gets hot. Soot is deposited on the inside of the jar. The candle wax me-
Q: Classify each of the following as a physical or chemical change:a. Silver metal is melted and poured…
A: In a physical change, only the appearance of matter only changes, but the type of matter is the…
Q: c) You decide to preserve some fish using sodium chloride. Explain how the sodium chloride works as…
A: Hello. Since more than one question gas been asked, the first question shall only be answered in…
Q: Which of the following is a chemical change? A. Burning paper B. dropping glass C. Dissolving salt…
A: Chemical changes occur when a substance combines with another to form a new substance. A) Burning…
Q: What is the difference between a physical change and a chemical change? List some examples of each.
A: Physical and chemical changes are observed in chemical reaction which gives the characteristics of a…
Q: chemical and physical changes
A: The difference between physical and chemical changes in a reaction is as follows.
Q: Identify two forms of energy that are involved in each of the following energy conversions relating…
A: Energy can neither be created nor destroyed. They can only be converted from one form to another.
Q: A marshmallow is toasted over a fire. It turns golden brown and caramelizes on the outside. It…
A: The toasting or roasting of a marshmallow is considered a chemical change in general as there are…
Q: 17. Based on the molecular diagram, classify each change as physical or chemical. a. b.
A: When we see the first reaction we see that there is no change in the composition of the reactants…
Q: Ice melts to form water. Sugar cubes dissolve in hot coffee. Which statement is true about the two…
A: Physical change: a change in which state of matter get changed Chemical change: a change in which…
Q: ange alcohol burning- Chemical Change alcohol boiling– Onsical change 2. In boiling water, the…
A: In boiling water, the bubbles contain-a a mix of hydrogen gas and oxygen gas in a 2:1…
Q: 1. Classify the following as physical or chemical changes and exothermic or endothermic processes.…
A: If a process is reversible that by applying opposite force or any other way we get the same product,…
Q: . When table salt is placed in water and stirred it dissolves and a clear liquid is obtained. This…
A: On the basis of changes; all processes can be classified as physical change and chemical change. The…
Q: Defermine what is happening in each picture and write what kind of change is taking place. Lab…
A: The explanation is given below-
Q: Classify each of the changes as a physical change or a chemical change.
A: Physical changes are the ones that are the ones do not involve any chemical reactions,i.e. the…
Q: carving wood slicing an apple burning woodtearing aluminum fol bleaching skin snow melting frying an…
A: A chemical change occurs when two substances on combining bring about to form new substance. Which…
Q: PLS ANSWER THE FOLLOWING QUESTIONS
A: The solution is given below -
Q: Classify each change as physical or chemical. A bicycle frame rusts on repeated exposure to air and…
A: There are two types of changes in the nature. One is physical change and other is chemical changes.…
Q: Determine whether the following observation is the result of a physical or a chemical change.…
A: When we have the same composition of the compound, then the process will be physical change.
Q: Classify each change as physical or chemical.Natural gas burns in a stove.
A: Whenever a chemical reaction occurs two types of changes can be seen. One is physical and the other…
Q: Classify the following as to chemical or physical change: Assignment : Copy and write your answer…
A: Physical changes only change the appearance of a substance while in chemical changes the the…
Q: change
A: Dear student I have given answer to your question in the image format.
Q: Classify each of the following processes as a physical change or a chemical change and as an…
A: Hydrochloric acid is a very strong acid which also vaporises at room temperature which makes it…
Q: Classify each change as physical or chemical. The liquid propane in a gas grill evaporates because…
A: Physical change: When a substance undergo changes like in shape, color, phase, state etc. without…
Q: List the differences between chemical changes and physical changes.
A: The chemical changes are defined as the combination of the two or more species and generate new…
Q: Mars is red due to red soil rich in iron oxide (rust). Is the oxidation of soil to rust a PHYSICAL…
A:
Q: Answer the following pre
A: To determine the melting point of Lauric acid. The physical significance of flat region. Energy is…
Q: Identify whether the change is chemical or physical. An egg is dropped from a table and breaks,…
A: Answer : Physical change An egg is dropped from a table and breaks, spilling on the floor...…
Q: A chemical reaction takes place to allow instant cold packs to absorb energy. This is an example of…
A: Reactions that absorb heat from the environment are called endothermic reactions. A common example…
Q: Explain why the evaporation of water is a physical change and not a chemical change.
A: Physical change is defined as a change in the appearance of a substance only not in its chemical…
Q: Describe the results of a physical change and list three examples of physicalchange.
A: In a physical change, the composition of the substance doesn't change. The identity of the substance…
Q: Gas volume is 29.96 cc, oil volume is 29.96 cc, and water volume is 25.68 cc. Calculate oil…
A: we have, Gas saturation (Sg) = Vg ÷ Vp Oil saturation (So) = Vo ÷ Vp Water saturation (Sw) = Vw ÷ Vp…
Q: What is the difference between a physical and chemical change? Give at least three signs of a…
A: Difference between chemical change and physical change. Physical change is a type of change…
Q: Classify the following as physical or chemical change: Roses turning brown [ Choose ] When water…
A: Physical change : It is basically a reversible reaction. Chemical change : It cannot be reversed…
Q: Dissolving sugar and water is an example of chemical change. Select one: O True O False
A: A physical change is a change where during the process, no new substances are formed and the process…
Q: What is correct from multiple choice
A: The physical change affects either state or form of the substance. It does not affect the chemical…
Q: 18. Based on the molecular diagram, classify each change as physical or chemical. b. C.
A: Physical changes are changes under which a substance undergoes a change in its physical properties.…
Q: Part A Water and rubbing alcohol have distinct properties and will react differently with the same…
A: Rubbing alcohol is isopropyl alcohol (CH3-CH2-OH). It has a dielectric constant of 19.92 whereas…
Q: Classify each as a physical change or a chemical change.a. breaking a pencil in twob. water freezing…
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: Classify the following as to chemical or physical change: Assignment : Copy and write your answer…
A: Physical change: In a physical change the physical state of matter changes. In this change different…
Q: Describe the difference between a physical change and a chemical change.
A: A physical change is a change in which some properties of the substance change, but its identity…
Q: 5. TRUE or FALSE a) Chemical reaction is an example of chemical change. b) Rusting of iron shows a…
A:
Q: Is the melting point of sodium chloride a physical or chemical change
A: Interpretation: The melting point of sodium chloride a physical or chemical change is to be…
Q: It is anything that occupies space and has mass. Atom Matter Molecule Plasma Which of the is under…
A: 1. Atom is the smallest particle or the building of the block of element. Matter is something…
Q: Define physical changeand chemical change.State which type of change occurs in each of the following…
A: Any substance undergoing a physical change does not experience changes in the composition of the…
Q: Which of the following are chemical changes? a. Sawing a log b. Copper oxidizing c. burning a log…
A: Physical change : In the physical change substance can not forming new different substance and it is…
Q: Which of these changes are physical and which are chemical? Explain.(a) Plants make sugar from…
A: (a) Plants make sugar from carbon dioxide and water. It is an example of chemical change. As carbon…
Q: Burning paper is a chemical change.
A: Chemical change is in which chemical composition is changed of the compound.
Q: Changing hydrogen and oxygen into water is a chemical change none of these conservation reaction…
A: The process by which the convertion of hydrogen and oxygen into water has to be given.
Q: Copper pennies Pour about 2 Tbs of vinegar into the bowl and add a 4 tsp of salt stir it up. Put…
A:
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- A hot metal block is plunged into water in a well-insulated container. The temperature of the metal block goes down, and the temperature of the water goes up until their temperatures are the same. A total of 1500 J of energy' is lost by the metal object. By how much did the energy of the water increase? What law of science is illustrated by this problem?aIs the process of boiling water exothermic or endothermic with respect to the water? bA charged object is moved closer to another object that has the same charge. The energy of the system changes. Is it a change in kinetic energy or potential energy? Is the energy changes an increase or a decrease?1.13 Physical properties may change because of a chemical change. For example, the color of an egg white changes from clear to white because of a chemical change when it is cooked. What is another common situation in which a chemical change also leads to a physical change?
- You want to cook some raw noodles to make a pasta dish for supper. So, you turn on the gas stovetop (which uses a flame), place a large pot of water over the flame, wait for the water to boil, place the noodles ¡n the boiling water for 11 minutes, and then drain the water from the noodles. Identify one example of a physical change and one example of a chemical change in this process. Explain your answer for each.You may have noticed that when water boils, you can see bubbles that rise to the surface of the water. a. What is inside these bubbles? i. air ii. hydrogen and oxygen gas iii. oxygen gas iv. water vapor v. carbon dioxide gas b. Is the boiling of water a chemical or physical change? Explain.Physical and Chemical Changes Say you are presented with two beakers, beaker A and beaker B, each containing a white, powdery compound. a From your initial observations, you suspect that the two beakers contain the same compound. Describe, in general terms, some experiments in a laboratory that you could do to help prove or disprove that the beakers contain the same compound. b Would it be easier to prove that the compounds are the same or to prove that they are different? Explain your reasoning. c Which of the experiments that you listed above are the most convincing in determining whether the compounds are the same? Justify your answer. d A friend states that the best experiment for determining whether the compounds are the same is to see if they both dissolve in water. He proceeds to take 10.0 g of each compound and places them in separate beakers, each containing 100 mL of water. Both compounds completely dissolve. He then states, Since the same amount of both substances dissolved in the same volume of water, they must both have the same chemical composition. Is he justified in making this claim? Why or why not?
- A particulate-level illustration of the reaction AB+CDAD+CB is shown below. a Identify the reactants and products in this reaction. b Is the change shown chemical or physical? c Is the mass of the product particles less than, equal to, or greater than the mass of the reactant particles? d If the reaction takes place in a container that allows no energy to enter or leave, how does the total energy in the container after the reaction compare with the total energy in the container before the reaction?The boiling of water is a physical change because the water disappears. physical change because the gaseous water is chemically the same as the liquid. chemical change because heat is needed for the process to occur. chemical change because hydrogen and oxygen gases are formed from water. chemical and physical change. Explain your answer.In each case, decide if the change is a chemical or physical change. (a) A cup of household bleach changes the color of your favorite T-shirt from purple to pink. (b) Water vapor in your exhaled breath condenses in the air on a cold day. (c) Plants use carbon dioxide from the air to make sugar. (d) Butter melts when placed in the Sun.
- Explain why a bathroom mirror becomes foggy when someone takes a hot shower. Classify any changes that occur as physical or chemical.From the information given, classify each of the pure substances A through D as elements or compounds, or indicate that no such classification is possible because of insufficient information. a. Analysis with an elaborate instrument indicates that substance A contains two elements. b. Substance B decomposes upon heating. c. Heating substance C to 1000C causes no change in it. d. Heating substance D to 500C causes it to change from a solid to a liquid.Distinguish precisely and in scientific terms the differences among items in the following groups. a Macroscopic matter, microscopic matter, particulate matter b Physical change, physical property, chemical change, chemical property c Gases, liquids, solids d Element, compound e Atom, molecule f Pure substance, mixture g Homogeneous matter, heterogeneous matter h Reactant, product i Exothermic change, endothermic change j Potential energy, Kinetic energy