List the names of the various changes of state for a pure substance?

Q: Match the image to the correct label (Pure substance, Pure compound, Homogeneous mixture,…

A: The images given are,

Q: II. Directions: Fill in the Venn Diagram below with similarities and differences between pure…

A: Given,

Q: Which of the following states of matter assume the volume & shape of the container? (a) solid (b)…

A: Solids have definite shape and volume. Liquids take shape of the container but have a definite…

Q: What is the definition of a physical property? What is thedefinition of a chemical property?

A: answer is discussed below :

Q: Evaporation of alcohol is a physical change. Select one: O True O False

A: The change is said to be a physical change if there is no change in the chemical composition of the…

Q: What are homogeneous mixtures?

A: Mixtures are materials formed from mixing of two or more components. Based on the composition of…

Q: The density of a substance is greater in its solid state than in its liquid state? Explain how?

A: The mass of the substance divided by the volume of the substance is equal to the density of the…

Q: What kind of system is the coffee held in a cup?

A: In thermodynamics, three types of systems have been described namely open system, closed system and…

Q: 4. What is a characteristic property of a pure substance? Is the boiling point of a substance a…

A: Pure substances are substances that are made up of only one kind of particles and has a fixed or…

Q: Illustrate the characteristic properties of the states of matter?

A: The characteristic properties of the states of matter has to be illustrated below.

Q: Contrast the arrangement of particles in solids and liquids

A: The three different types of matter are solid, liquid and a gas. The major difference between solid,…

Q: Differentiate between solids and liquids in terms of the arrangement AND motion of the particles

A: Difference between solids and liquids on the basis of their arrangement and motion of the particles…

Q: Write a informative essay about separation of mixtures in Chemistry.

A: Answer - A separation process is a method that converts a mixture or solution of chemical substances…

Q: The warmest temperature ever measured in the United States is134 °F on July 10, 1913, in Death…

A: The given temperature is 134°F.

Q: What are the 4 states of matter?

A: To identify: 4 states of matter.

Q: Name and define the common states of matter

A: Matter: Any substance in universe that has mass and occupies some space is termed as matter.

Q: Which of the following is a property attributed solely to chemical change?     Change of color due…

A:

Q: process represented by the equation C10H8(s) → C10H8(l) is

A: There are various processes by which matter can change its states. From solid ---> liquid.…

Q: Cite the evidence that indicates that only physical changes occur when a platinum wire is heated in…

A: Physical change means any kind of change of a substance's form like size, colour etc. without being…

Q: Sound, light, feelings and ideas are not considered to be matter. Which of the following best…

A: Why sound , light, feelings and ideas are not considered to be matter?

Q: Identify the following as a pure substance or mixture * xXx

A: Pure substance is defined as the sample containing only one type of molecules of the compound.

Q: When is decantation applicable in separating solids from liquids

A: When the liquid has to be separated leaving the solid behind in a liquid mixture, then decantation…

Q: What are the examples of nanostructures?

A: A nanostructure is an object that has at least one dimension equal to or smaller than 100…

Q: Using examples, explain the difference between a physicalproperty and a chemical property.

A: The characteristics shown by a substance both physically and chemically is called a property.

Q: What is a homogeneous mixture?

A: To find: The definition of homogeneous mixture

Q: Separating a mixture of two liquids into its components based on their boiling points is known as: •…

A: Every liquid has its unique boiling point, at which it converted to vapour,  based on this boiling…

Q: ______________________ are defined as homogeneous mixtures of two or more pure substances

A: A SOLUTION  is a homogeneous mixture of two or more pure substances.

Q: Give examples of pure substances and mixtures.

A: A material containing only one substance is called a pure substance. Pure substances are further…

Q: Is pure 24-carat gold a substance, element, and/or compound? Explain.

A: 24-carat gold an element. It can be also reffered to as pure substance. It contains only the gold…

Q: A process that may be applied to a mixture of two substances which sublime closely together *

A: Given statement is : A process that may be applied to a mixture of two substances which sublime…

Q: A student collected the data shown in the table below during an experiment. Liquid Characteristics…

A: Alcohol thermometer: The Boiling Point of alcohol thermometer is  78 °C, so it is not possible to…

Q: 1. Two pans of water are on different burners of a stove. One pan of water is boiling vigorously,…

A: The amount of energy required to convert some amount of liquid water to gas or steam at constant…

Q: indicate if the temperature increase or decrease in the following matter changes: from liquid to…

A: 1. from liquid to gas 2. from liquid to solid 3. from gas to liquid 4. from solid to liquid

Q: classify whether it is greater than, less than, or equal to.

A:

Q: Enumerate the characteristics of a substance for it to be separated from the heterogeneous mixture…

A: Steam distillation is a process of distillation at temperatures Lower than the normal boiling point…

Q: What is the difference between a heterogeneous and a homogeneous material?

A: Homogeneous and heterogeneous material are two classes of materials which differ in their…

Q: 1. In the following heating curve, which segment represents a freezing and melting?

A: Since we know that freezing point is the temperature where liquid state change to solid state  And…

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: A change in an adjective in a specific direction is an increase or decrease across a single cycle or…

A: The above given statement is related to the periodic table which is an easiest way for the…

Q: Which of the following is a pure substance that can be broken down into simpler substances by…

A: Solution: It is a homogeneous mixture of two or more components that are uniformly distributed…

Q: Liquid octane (C8H18), a component of gasoline, reacts with gaseous oxygen to form gaseous carbon…

A: In the balanced chemical equation, number of atoms and charge on either side of the equation must be…

Q: a) Define melting point. b) Is melting point a physical or chemical property of matter?

A:

Q: True or False When a physical change occurs,  a change in state occurs which indicates that a new…

A: In a physical reaction the property of the component ramains same as before the reaction. e.g. Ice…

Q: A man makes breakfast He puts some toast in the toaster and mixes some eggs with a milk As he begins…

A: Given: Burning of a toast. Digestion of food. Burning of gas. And straining of orange juice.

Q: Classify following as pure substances and mixtures – Air, glucose, gold, odium and milk.

A: Given: Air, glucose, gold, sodium and milk

Q: It is observed that oil floats on top of water. What physical property accounts for this observation

A: Given : oil floats on top of water

Q: If iodine melts at 114 degrees C and boils at 184 degrees C, what is its physical state at 120…

A: Given: Melting point of Iodine is 114°C . Boiling point of Iodine is 184°C  To find:  Physical state…

Q: Given the following combinations:   a. a homogeneous liquid mixture of bromine, Br2, and carbon…

A: The question says Which of the pairs is an undissolved mixture of two compounds? Undissolved mixture…

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.