Classify the following as physical or chemical changes. a.Moth balls gradually vaporize in a closet. b.Hydrofluoric acid attacks glass and is used to etch calibra- tion marks on glass laboratory utensils. c. A French chef making a sauce with brandy is able to boil off the alcohol from the brandy, leaving just the brandy flavoring. d. Chemistry majors sometimes get holes in the cotton jeans they wear to lab because of acid spills

Q: 1. Identify the following as examples of chemical or physical changes. glass melting a. b. milk…

A:

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: T/F If a mixture can be separated into pure substances via filtration, the original mixture was a…

A: To identity the whether the given statements are true or false

Q: Identify each of the following as a physical or chemical property:a. Mercury has a silvery shiny…

A: Physical Proerties :   1. Mercury has a silvery shiny appearance : It is a physical property because…

Q: For household purposes, the use of teaspoon in measuring the dose is acceptable. All teaspoons…

A: Household spoons which include teaspoons, tablespoons, etc are not standardized and it gives only…

Q: In what state particles that make up matter move the least? O liquid O particles movement is not…

A: Movement of particle matter is least in Solids.

Q: Which of these statements is TRUE about physical states? a. A solid is compressible b. The only…

A: a) Solids is that physical stage which are have particles packed very densely. Since the particles…

Q: A good example of a homogeneous mixture is(a) a cola drink in a tightly capped bottle(b) distilled…

A: A mixture is a blend of components where the constituent components retain their properties and…

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: Look up the measurement of the approximate thickness of a human hair.a. Convert the measurement to…

A: (a)

Q: Singles First: the owner of the building wants to have the tenants spread out as much as possible.…

A: Hund's rule can be applied here .

Q: classify each of the following as a pure substance or a mixture. If a mixture, then identify weather…

A: Each of the following is to be classified as a pure substance or a mixture. If a mixture, then…

Q: 42. Classify each change as physical or chemical.(a) Sugar dissolves in hot water.(b) Sugar burns in…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 114. Classify each as a pure substance or a mixture. If it is a pure substance, classify it as an…

A: An element is the simplest type of substance comprising of a single type of matter.  A compound is…

Q: In what state particles that make up matter move the least? O liquid particles movement is not…

A: Interpretation -  In what state of particle that make up matter move the least -     Introduction -…

Q: Identify each of the following as physical (P) or chemical (C) change: a) Chocolate is melted for…

A: Chemical change occur when new substance is formed.

Q: A hybrid electric vehicle has an EPA gas mileage rating of 53mL/gal in the city. How many kilometers…

A: 1 gallon = 3785.41 ml 53 miles = 85.2952 km mileage of car = 53 miles/gal or 3785.41 ml needed to…

Q: 14. A researcher finds that a solid has high melting and boiling points, and is soluble in water.…

A: Ionic compound is a chemical compound composed of ions held together by electrostatic forces termed…

Q: are in constant, rapid, random motion. b. have high densities compared with liquids and solids. c.…

A: Kinetic theory of gases explain the macroscopic properties of gases such as volume, pressure and…

Q: coffee (with milk) a. suspension b. solution c. an element d. heterogeneous mixture

A: Coffee on dissolving in milk forms a homogeneous mixture because the particles of coffee…

Q: Classify each of the following as a physical change or a chemical change. (a) Touching a lit candle…

A: Since you have posted a question with multiple subparts, we will solve the first three subparts for…

Q: a. The freezing temperature of water is 328F. Calculate the freezing temperature of water in Celsius…

A: a. In Celsius unit, X°C= (F-32)×59=328F-32×59=164.4°C   In the Kelvin unit,…

Q: change

A: Dear student I have given answer to your question in the image format.

Q: Classify each of the following changes as physical or chemical: (a)condensation of steam (b)…

A: Physical change In this we only see the change in the appearance of any substance , the chemical…

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: Particles of solid liquid gas -Energy and movement of particles in solid liquid gas -Spaces between…

A: States of matter.

Q: llum.ecollege.com/course.html?courseld%3D15807691&OpenVellumHMAC=9c87262d9de99faf53f1782b38312140#10…

A: Given information,Distance = 400 kmThe volume of Gasoline is 47.5 LIt is know that,1 mile=1.6093 km1…

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: How do I know the difference between physical and chemical changes?

A:

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: 1.21 Label each of the following as either a physical process or achemical process: (a) rusting of a…

A: The answer for first three subparts are given below. Kindly repost the other subparts as separate…

Q: er| Portal E Edulastic O Sence Spring Semester Exm *…

A: The  changes that affect the form of a chemical substance, but does not affect  its chemical…

Q: When popcorn is popped what happens?   Is this a physical or chemical change? Explain your answer.…

A: When popcorns popped they expand to become big in size.

Q: A student pours sodium chloride into a beaker of water and stirs it well. The sodium chloride is no…

A:

Q: 1. What pieces of apparatus or equipment are used for measuring: a. Temperature? b. Small amount of…

A: (1) (a) Temperature is measurement of coldness and hotness of a Substance. Usually heat always flow…

Q: light

A: C) heat Calorie A unit of heat equal to the amount of heat needed to raise the temperature of 1,000…

Q: 1.14 Classify each of the following as a pure substance or amixture. If a mixture, indicate whether…

A: The uniform distribution of solute particles in a solvent is called homogeneous solution. For…

Q: Classify each change as physical or chemical. a. Natural gas burns in a stove. b. The liquid propane…

A: a. Natural gas burns in a stove.b. The liquid propane in a gas grill evaporates because the valvewas…

Q: Q/ Label each as a physical property or a chemical property. a) Gasoline evaporates quickly.…

A: Physical properties :  " The properties of matter that can be measured without changing chemical…

Q: If you place a glass rod over a burning candle, the glass appears to turn black. What is happening…

A: The term physical change for a given substance can be defined as the change that results in the…

Q: As ice is heated, the two states of matter that are observed immediately after are and which sit on…

A: Ice is at 0°C temperature. When it is heated it immediately have two states of matter.

Q: 14. Your mom is washing the rice in the casserole pot before cooking it A. filtration B. decantation…

A: Given: 14. Rice is being washed before cooking: 15. Dr Merle is getting some cash from his wallet.…

Q: O Playing a Game-Quizizz CO a…

A: Atomic radius is defined as the distance from the centre of nucleus to the outermost shell.

Q: Are the following chemical (C) or physical changes (P)? Sugar dissolves in water b) Sugar is heated…

A: a) Sugar dissolves in water In this process, sugar is dispersed in water, but the sugar molecules…

Q: Copper pennies Pour about 2 Tbs of vinegar into the bowl and add a 4 tsp of salt stir it up. Put…

A:

Q: 1. Which of the following is a chemical change? A) cooking an egg B) mixing oil and water C)…

A: ***Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: How do I classify all the statements ? Or convert them ?

A: According to Charles Law, the volume of a gas increases proportionally when the temperature in…

Q: Part 2: Classify the following changes as physical (P) or chemical (C). ? 11. Milk souring. ? 12.…

A: Part 3 : Physical changes are reversible in nature and there is no change in the chemical…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.