List four indicators that a chemical change has probably occured.

Q: Can a chemical change result's in no new substances。?

A: Physical change: Physical change involves one phase to another phase without breaking or making the…

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: Provide examples of physical change and chemical changes and how you could tell.

A: Physical change :  A physical change is defined as the change which do not change composition of…

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

A: A physical change is a process which involves a substance changing its form or state and but its…

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: he energy change?

A:

Q: What are the properties of a gas?

A: ANSWER

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: Enumerate

A: Yes the formation of the new substances is evidenced by the color changes and formation of the…

Q: Give an example of a chemical change, and explain what evidence supports that it is a chemical…

A:

Q: How do you know (evidence) that a chemical reactions has occurred. Give specific evidence at least.

A: Chemical reaction is process by which new products are formed as a result of the reaction between…

Q: What are four observations used to indicate a chemical change?

A:

Q: Dissolving suger is an example of-(a) Physical change(b) Chemical change(c) Redox Reaction(d) None…

A: Physical change: Changes in only size, shape, state or appearance of a substance not in a chemical…

Q: The differences from chemical change and physical change

A: PHYSICAL CHANGES:- 1 -A physical changes is the changes of matter that occur without changing the…

Q: Which one below represents a chemical change?

A: The question is based on the concept of general chemistry. there are basically two types of change…

Q: State the difference between physical and chemical changes

A:

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: Which of the following is a physical change?   a. Ice melting into liquid water   b. Sodium…

A: Physical changes are changes affecting the form of a chemical substance, but not its chemical…

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: From the given answer sheet. Operationally define physical change from chemical change and how would…

A:

Q: What is another common situation in which a chemical change also leads to a physical change?

A:

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 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: 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: Changing hydrogen and oxygen into water is a .... a. chemical change b. physical change c. double…

A: When a chemical change takes place bond between atom breaks and new bond forms. Thus when water is…

Q: Which change will lead to a larger change in the kinetic energy of an object,doubling its mass or…

A: Ek      =   ½mv2

Q: the kinetic energy of particles

A: The kinetic energy of the Gas is greater than the kinetics of liquid, greater is the kinetic energy…

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: List three of the five changes in the properties of matter than can occur during a chemical…

A: During a chemical reaction, many changes occurs

Q: Give at least one physical changes that are obviously accompanied by energy change.

A: The physical changes are the changes in which a substance does not change the identity of the…

Q: 12. Which picture shows an example of a chemical change taking place? LORV A B C

A: To determine which of the below picture shows chemical change.

Q: What are the properties of Chemical changes?

A:

Q: Which of the following is NOTA chemical change? O a. bicycle rusting O b. antacid neutralizes…

A:

Q: Change 2 Change 3 Change 1 Change 3 is: Change 1 is: OImpossible a physical change Change 2 is: O…

A: When the reactants react in a reaction and involves the breaking of bonds then this reaction is…

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

A: Difference between physical and chemical change.

Q: Give 5 examples of Chemical Changes

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

Q: Burning paper is a chemical change.

A: Chemical change is in which chemical composition is changed of the compound.

Q: Classify property as physical or chemical. the tendency of ethyl alcohol to burn

A: On burning the ethyl alcohol, carbon dioxide and water are produced.

Q: Define physical change and list several common physical changes.

A: There are two types of change in matter; physical change and chemical change.

Q: Which change can be easily reversed? O Chemical Change O Physical Change O Both a physical and…

A: A physical change happens when a compound undergoes changes in physical properties like color…

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: Include states of matter

A: Balnced chemical reaction in basic medium is

Q: Which f the following is an example of chemical change? O Filling up a balloon with hot air. O…

A: Chemical change is a process which results when a substance combines with another substance to form…

Q: Which one of the following is not a chemical change ?     A. Burning of coal in airB. Fermentation…

A: A chemical change is a change of one substance to another one or more substance via a 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.