When a new substance is formed with different properties than the original substance it is called a O Chemical change O Physical change O Freezing boiling

Q: Define energy and explain the importance of energy in chemistry

A: Science is knowledge about facts that are based on observations of experiments.Chemistry is one of…

Q: A measurement related to the mass and velocity (speed) of particles.

A: Chemistry is the study of matter which has mass and occupy space. Matter is describes in number of…

Q: When a substance changes from a liquid to a solid, which of the following is TRUE? a) b) c) The…

A: There are more attraction forces between the particles of solid than that of liquid.

Q: The temperature at which all molecular motion stops. a. absolute zero b. boiling point c. Boyle's…

A: Absolute Zero- The minimum temperature (that can be theoretically achieved), at which the motion of…

Q: Many processes occur in the digestive system. Which process is best classified as a physical change?…

A: Welcome to bartleby !

Q: Of the three states of matter, which one has the most kinetic energy? O gas O atoms O solid O liquid…

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Q: Classify these substances. More than one answer may apply in each case. N2 solution O homogeneous…

A: Element - It is a pure substance made up of only a single atom.  Compound - It is a pure substance…

Q: When the Statue was unveiled in 1886, it was a shiny brown color, like a penny. The reason the…

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Q: Which list correctly compares how adding energy affects a substance during a phase change and not…

A: Given: Energy is added to a substance during a phase change and not during a phase change.

Q: Which statement describes all chemical changes, but not all physical changes? O Bubbles are…

A: The statement which describes chemical changes has to be given,

Q: Which list correctly compares how adding energy affects a substance during a phase change and not…

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Q: 1. Group VIIIa elements at room temperature 2. Highest kinetic energy among its molecules 3.…

A: 1.Group VIIIa elements at room temperature - GAS ( The noble gases of Group 8A (He, Ne, Ar, Kr, Xe,…

Q: Is wood burn change? a physical or chemical O Physical O Chemical

A: Burning of wood is physical or chemical change ?

Q: The particles in a substance are moving and sliding past each other, but they are still in contact.…

A: This question is related to state of matter. Matter exist in three phases: Solid, Liquid and Gas.

Q: the properties of the old substances as they are combined with other substances to create new…

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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: Which of these physical changes would require the liberation of energy? a. condensation of steam to…

A: Physical change - A change in which composition of substance does not change, only state of…

Q: All moving objects have Kinetic Energy. O True O False

A: we know that Kinetic energy is determined by the equation 0.5•m•v2.

Q: Solids and liquids could be consists of the same materials and yet have different properties. Just…

A: Solid and Liquid are the two phases of a same substance. A substance exists as a solid in a…

Q: Which of the following statements about energy is FALSE? Energy can be converted from one type to…

A: Energy is the capacity to do work. It can neither be created nor be destroyed and it convert from…

Q: Please explain if the following situation describes a chemical or physical change. Then, nln ploase…

A: A physical change involves only change of physical forms. It doesn't involve any changes in…

Q: A) Which term describes the conversion of substances into different substances? ionic bonding…

A: Conversion of one type of substances into other substances is take place through a reaction.

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: If matter is uniform throughout and cannot be separated into other substances by physical means, it…

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Q: Which of the statements below are true of the substance represented in the diagram?

A: Among solid, liquid, and gas, the arrangement of atoms are different. The particles in a solid are…

Q: Brass is a combination of copper and zinc metals. How would you classify brass? Element O…

A: Alloys are the compounds which are made up of two or more metals. The property of a metal can be…

Q: The specific heat of a substance is the amount of heat needed to O change 1 g of the substance from…

A: The answer to the following question is given as -

Q: A scientist dropped a glass beaker on the lab floor and shattered it. Which property change does…

A: We know that, when shape of the substance is change then this type of property is known as physical…

Q: Describes how tempera

A: Different fundamental gas laws are there that tells the relationship between the pressure,…

Q: Match the correct word with the description. v Blood is an example of element. A. v Air is an…

A: Elements are those substances which contain the same atoms with same number of protons while…

Q: If a sample of matter is uniform throughout and cannot be separated into other substances by…

A: element and compound are pure substances that have uniform throughout the composition.

Q: Classify the following changes of substances as PHYSICAL or CHEMICAL: 12(s)+ sodium bisulfate 2Nal…

A: Physical change is reversible and do not produce new substance , it only change appearance of…

Q: Matter (mass) cannot be created or destroyed in a chemical reaction. a. absolute zero b. boiling…

A: In many chemical reactions, the mass of the reactant is not equal to the mass of the product because…

Q: When Jill opened the bottle containing a clear liquid, the whole room smelled like roses." Based on…

A: Compound is a pure substance that is pure and contains atoms of two or more types of elements in…

Q: Energy  the matter possesses due to its position is called ? kinetic energy potential energy…

A: Kinetic energy: Energy because of the motion of the object Potential energy: Energy because of the…

Q: dified True or False tions: Write CHEMISTRY if the statement is correct, if otherwise, change the…

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Q: b. melting of ice c. boiling of water d. all of these e. none of these

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Q: Energy that is associated with the position or composition of an object is called O thermal energy.…

A: An object can posses many types of energy depending on its chemical behavior, motion, position,…

Q: ax puts cereal in a bowl and pours milk over it. Which term best describes Max's bowl of cereal? O…

A: Mixture - When two or more substances mix without any proportion, it is known as a mixture.

Q: E. Evaluate Trections: Study each situation, Write Pifthe picture shows physical chan C for chemical…

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

Q: Which of the following statements is true? Both mixtures and pure substances have variable…

A: Mixtures are basically described in 2 types such as heterogeneous as well as homogeneous.…

Q: When a single salt crystal is added to a cool liquid, large crystals form. Which statement about the…

A: The question is based on the concept of recrystallization. we have to identify the correct statement…

Q: Of the three states of matter, which one has the most kinetic energy? O solid atoms O gas O liquid

A: Atoms

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: Classify the following changes of substances as PHYSICAL or CHEMICAL: 12(g) - 12(s) 12(s)+ sodium…

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Q: Freezing is a exothermic chemical change endothermic chemical change exothermic physical change…

A: Exothermic Reaction  In such reaction heat is produced during the reaction.  Endothermic reaction In…

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: Directions: Fill in each E with the correct term from the word bank. energy transferred L the…

A: Things around us which has mass and occupy space are called matter. Matter exists in three different…

Q: Which of the following would be considered a chemical change? O ice melting O water flowing O iron…

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Q: A student noticed a yellow, solid substance was formed when mixing two clear liquids during a lab.…

A: It is not a physical change because chemical reaction is taking place between two liquids to give a…