Classify each change as physical or chemical.  Sugar burns when heated on a skillet.

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: Classify each change as physical or chemical. (a) the rusting of iron(b) the evaporation of…

A: Physical change changes the size, shape or phase of substance, Chemical change is a type of change…

Q: Which one of these represents a CHEMICAL change? A) lard when heated changes to liquid B) water…

A: To identify: Chemical change among the given options.

Q: The combustion of a peanut releases 6 kcal of heat. Convert this energy to J.

A: Thermodynamics is the branch of chemistry which deals with the study of heat and other forms of…

Q: How to tell whether a property is physical or chemical

A: Physical properties are the properties such as colour, melting point,hardness,density and doesn't…

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: . 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: 19. When limestone is subjected to high heat, it becomes calcium oxide and releases carbon dioxide…

A: Using combustion reaction of wood it is observed that it is similar to decomposition of limestone.

Q: Describe how energy is transformed as the substances are mixed

A: Energy transformation takes place from one substance to the another but the system's overall energy…

Q: Classify the following as physical or chemical change Opening a can of soda and letting the gas…

A: Physical change is a change in physical appearance of a substance.  Chemical change is a…

Q: Is a change in phase a physical change or a chemical change? Explain.

A: A physical change is a reversible change whereas chemical changes are generally irreversible. No new…

Q: Classify property as physical or chemical. the color of gold

A: Physical property: The color of gold is not because of any chemical reaction but due to the…

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: Energy that moves particles of matter is: Temperature

A: Need kinetic energy for particles movement.particles colloid with each other then increase in…

Q: What are the differences between physical and chemical change. Explain in 200 words.

A: Introduction: Physical change and chemical change are completely two different process. For example,…

Q: Define physical change and chemical change and give an example of each

A: Physical change is the change of one state to another without changing the chemical composition.In…

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: change

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

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: The boiling of water is aa. physical change because the water disappears.physical change because the…

A: The boiling of water is a physical or chemical change. (a) physical change because the water…

Q: Classify each of the following as a physical or chemical change   Iron rusting -…

A: The change of matter that occurs without changing the chemical composition of the matter is called…

Q: When you put salts in the fire during a flame test, the flame turns a different color. Is this a…

A: When we puts salt in fire during flame test the flame turns to a different color.

Q: Energy can be divided into two types. What are these types and give an example of each.

A: Energy is the ability to do work: the ability to cause change: all energy can be transferred.

Q: Digesting food is an example of what? A chemical change A physical change

A: Physical change :-  In this chemical composition of the substance does not change. Involve change in…

Q: Identify each process as a physical change or a chemical change. Give the basis for your answer. (a)…

A: The explanation is given below-

Q: Classify each process as a chemical or physical change. a. dissolving calcium chloride in water b.…

A: The given processes as a chemical or physical change has to be given.

Q: Alcohol evaporating is an example of what? Group of answer choices A chemical change A physical…

A:

Q: 19. When limestone is subjected to high heat, it becomes calcium oxide and releases carbon dioxide…

A: The heating of limestone is a chemical change;The limestone decomposes into two other substances,…

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: 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: Classify each property as physical or chemical. (a) the tendency of silver to tarnish(b) the shine…

A: Physical property is the characteristics of matter that is not associated with a change in its…

Q: Physical changes Chemical changes Answer Bank The candle wick burns. The glass jar gets hot. Soot is…

A: Introduction: We have to tell when candles burns what will be the physical and chemical changes…

Q: Classify property as physical or chemical. the boiling point of ethyl alcohol

A: Ethyl alcohol has molecular formula CH3CH2OH. Its physical appearance is liquid state. It has highly…

Q: How do you distinguish a chemical change from a physical change?

A: A chemical change can be distinguished from a physical change by noting the following points:

Q: Classify each property as physical or chemical. a. the boiling point of ethyl alcohol b. the…

A: Physical property: Property of material which can be obtained without disturbing identity of…

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: What is the difference between a physical change and a chemical change?

A: The difference between physical and chemical change are given by

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

A:

Q: Gasoline is composed of a variety of different liquid hydrocarbons, which do not separate as time…

A: Gasoline is composed of a variety of different liquid hydrocarbons. These hydrocarbon does not…

Q: In your own words, explain What are the differences between physical and chemical change.

A: Difference between physical and chemical change.

Q: A block of iron forming a pool of the liquid metal is correctly classified as A) Chemical change…

A: Physical change : is the change of matter that occurs without change of the chemical composition. It…

Q: Give 5 examples of Chemical Changes

A: Change of a particular matter or species into another matter or species having different properties,…

Q: A Classify each example as a physical change or a chemical change.a. crushing an aluminum canb.…

A: A physical change occurs when matter changes its form but not the identity. It includes change in…

Q: The energy transformation in the picture below shows a change from A. chemical to thermal and light…

A: The energy transformation taking place is given as,

Q: 1. Metal Ore a. element b.compound c. mixture   2.  Grinding dried leaves into a fine powder…

A: We have to classify metal ore and type of change occuring on grinding leaves.

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.