Which of the following represents a chemical change? O mixing salt and sand O paper burning O alcohol evaporating O freezing ice cream salt dissolving water

Q: Determine whether each of the following describes aphysical change or a chemical change: (a) The…

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: 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: Classify each of the following as a physical or chemical change:a. A gold ingot is hammered to form…

A: The following changes has to be classified as physical or chemical 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: Does each of the following describes a physical change or a chemical change? a. The helium gas…

A: Physical change- Changes in which no change occurs in chemical composition of a substance. Chemical…

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: 1. Classify each of the following as a chemical or physical change. a. burning of wood b. browning…

A: Changes are classified into two types -  A - Physical Changes B - Chemical Changes

Q: Which of these changes are physical and which are chemical? Explain.(a) Plants make sugar from…

A: According to the question, sugar is made from water and carbon-dioxide. We have to mention as to…

Q: (1.4)Which of the following is a chemical change? O cutting papers O rusting iron O breaking glasses…

A: Physical changes are the changes in physical properties of a substance. They are generally…

Q: Which of the following is a property of water?  It can freeze very fast.  It has low heat…

A: Water is present in all three states that is, solid, gas, and liquid on the Earth. Hence, the…

Q: Chemical Properties Assignment Active Identifying Properties of Matter Determine which type of…

A:

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: 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 a chemical change because of new compound…

Q: Define physical change and chemical change. State which type of change occurs in each of the…

A: Physical change is the type of change which involves change in the physical appearance of a…

Q: Which of the following is a chemical property of tin? O It is easily malleable. It melts at 232°C.…

A:

Q: Which of these changes are physical and which are chemical? ExplainWater vapor in the air forms…

A: Physical change  Chemical change No change of chemical composition of matter Change in chemical…

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: Which of the following statements describe a physical property? i. A property which can be observed…

A: A physical property is a characteristic of a substance that can be observed or measured without…

Q: Determine whether the following is a physical or chemical change. Explain. 1. powering a flashlight…

A: Chemical change :  the process in which one substance or more than one substance reacts to to form…

Q: Classify each of the following as a compound, a homogeneous mixture, or a heterogeneous mixture: (a)…

A: (a) distilled water: Compound. Distilled water is a pure substance ( compound) made up of hydrogen…

Q: Determine whether each change is physical or chemical.a. Water boils.b. A match burns.c. Sugar…

A: A physical process is defined as the process in which the physical state of matter takes place.…

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: 1. Which is an example of a physical change? A) The rusting of an iron nail B) The burning of…

A: melting of an ice cube in a glass of soda is a physical change. So option e is correct answer. Here…

Q: Classify each process as a chemical or physical change. a. the condensation of water on the outside…

A: In a process, when there is no change in the chemical identity of the substance, then such a process…

Q: Which of the following changes are chemical changes? Gasoline is burned. Gasoline is evaporated.…

A: Physical change: In a physical change only the state of matter changes. In this change different…

Q: Which is NOT a physical property of table sugar?A. forms solid crystals at room temperatureB.…

A: Physical properties: Physical properties can be observed or measured without changing the…

Q: Which is considered a physical change? changing color of apple cores uncoiling a copper wire spool…

A:

Q: Which of the following would indicate a physical change has occurred? O Bubbles are produced State…

A: Answer :-  State of matter changes (ex. water becomes steam)…

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: Which of the following is an example of physical change? O Mixing baking soda and vinegar together,…

A: A physical change is the change of matter that occurs withoutchanging the chemical composition of…

Q: Magnesium metal, a gray solid, is heated in a crucible in the presence of oxygen A white powder is…

A: When two or more substances combine together and form a new product,then it is known as a chemical…

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: Which is an example of a physical change? O Metal rusting O silver tarnishing O Water boiling O…

A: Physical change: In a physical change the physical state of matter changes. In this change different…

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: Which one of the following is a PURE chemical substance Sea water O Selenium O Air O Paper

A: Given substances: Sea water Selenium Air Paper We have to find the pure chemical substance.

Q: Which one of the following is a chemical change? Melting snow Distilling sea water Rusting Iron O…

A: Chemical changes are irreversible changes occurring in such a way, that one substrate completely…

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

A: (a) Condensation involves change in state from gas to liquid. This change is a physical and doesn't…

Q: In which of the following pairs of properties are both properties physical properties? O decomposes…

A: Given pairs of properties: decomposes at 75 ∘C, reacts with chlorine freezes at 5 ∘C, flammable…

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: Which of the following describes a chemical property? a. The density of iron is 7.87 g/cm3b. A…

A: The chemical property has to be described.

Q: In which of the following is a chemical change occurring? ice forming on a lake adding vinegar to…

A:

Q: Which of th following are chemical changes? and which are physical changes? making syrup by heating…

A: Here, we have to identify that the given process is a chemical change or physical change.

Q: Magnesium metal, a gray solid, is heated in a crucible in the presence of oxygen. A white powder is…

A: A chemical substance or a molecule change into another chemical species through a various process is…

Q: Which of the following is an element? Fe,(SO,), Li O2

A: The substances that have a tendency to occupy space are considered as matters. The matters can be…

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…

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.