1.22 A match is lit and held under a cold piece of metal. The followingobservations are made: (a) The match burns. (b) The metal getswarmer. (c) Water condenses on the metal. (d) Soot (carbon) isdeposited on the metal. Which of these occurrences are due tophysical changes, and which are due to chemical changes?

Q: whats the difference between homogeneous and heterogeneous mixtures?

A:

Q: Suppose a teaspoon of magnesium filling and a teaspoon of powdered sulfur are placed together in a…

A: MIXTURE : Mixture is defined as the physical combination of two or more different substances such…

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

A:

Q: non-matter

A: Non–matter –There are mostly those things around us that have mass and occupy space. But there is…

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

A: Given,

Q: What is correct from multiple choice

A: Since the reactions in which only the physical properties of reactants change and no change in…

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

A: answer is discussed below :

Q: 1. What is physical change? A chemical change?|

A: As you didn't asked for a particular question number I'm giving you answer of first question. Please…

Q: Give three examples illustrating each of the following terms. Homogeneous mixture- sugar solution,…

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

Q: Determine whether each change is physical or chemical. What kind of property (chemical or physical)…

A: (a)The evaporation of rubbing alcohol indicates that it changes from liquid to gas. But, it still…

Q: which of the following are chemical changes? which are physical changes? cutting of food,…

A: If the reaction is irreversible and bond making and bond breaking occur in the reaction and then…

Q: Give an example of an element and a compound.How do elements and compounds differ?

A: Element is a substance whose constituents atoms have the same atomic number. Two or more different…

Q: You are hiking in the mountains and find a shiny gold nugget.It might be the element gold, or it…

A: The phisical properties that are given are: appearence  melting point  density physical state.

Q: Decide whether each of the following processes is primarily a physical or a chem-ical change, and…

A: The change in which the composition of the substance remains unaltered, while the arrangement…

Q: Which of the following is not a physical change? Frying an egg Boiling water Liquefying oxygen…

A: Physical change is the process where the apperance of the matter or the state of matter changes. But…

Q: 2. Fill the blanks with the possible physical methods of separation/processes Matter Heterogeneous…

A: Heterogenous mixture :- Mixtures which constitutes of more than one type of particles.  Examples :-…

Q: A glass of cold milk is an element, a compound, a homogeneous mixture or heterogeneous mixture?

A: A glass of cold milk is an element, a compound, a homogeneous mixture or heterogeneous mixture?…

Q: 2. { a) Sodium and chlorine are elements. c) Sodium chloride is a pure substance. Which one of the…

A: 1st statement  Sodium and chlorine are elements is a correct statement.   2nd statement Sodium…

Q: (a) Read the following description of the element zinc andindicate which are physical properties and…

A: Indicate the physical and chemical properties of zinc from the given description. Zinc melts at 420…

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: Is stainless steel a heterogeneous or a homogeneous?

A:

Q: Classifaction

A: All matter can be classified as mixture and pure substances. A pure substance is composed of same…

Q: Physical and Chemical Change Worksheet Classify the following as a physical or a chemical change and…

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: . In each of the situations below, it seems that a new substance may have been produced. Explain why…

A: A physical change to a sample of matter occurs when some of the material’s characteristics change…

Q: State whether the following properties of matter arephysical or chemical.(a) An iron nail is…

A: a.

Q: 1. Classify the following as an element, compound, homogeneous mixture or heterogeneo mixture. Beer…

A: Since you have posted multiple questions we will solve the first one for you. To get the remaining…

Q: The scenes below illustrate two different mixtures. When mixture A at 273 K is heated to 473 K,…

A: In a physical change, the physical state of the substance (like phase, density, hardness) will…

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: Classify the following as either pure substances or mixtures. If it is a pure substance, state…

A: In the above problem we have to determine a substance is pure or mixture.homogeneous mixture or…

Q: Q.3. Observe the following pictures and answer the questions. 1. Which of the picture above are…

A: We need to determine which of these changes are temporary and which are permanent.

Q: Two beakers contain clear, colorless liquids. When the contentsof the beakers are mixed a white…

A: Chemical change- The change in which chemical reactions are happened called as chemical change. e.g.…

Q: Which of the following is not an example of a chemical property and why? 1. An iron nail will rust…

A: Among the given processes, the process which is not an example of chemical property is, Sugar will…

Q: Which of the following processes is a physical change? (a) evaporation of water; (b) combination…

A: In physical change, there is no change in the chemical composition.

Q: Suppose a teaspoon of magnesium filings and a teaspoon of powdered sulfur are placed together in a…

A:

Q: - Which of the following are chemical changes? Which are physical changes? - a. the cutting of food…

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

Q: 2-86 When each of the following measurements are length is convert to inches, using a conversion…

A: The conversion factor used in the unit conversion has infinite number of significant digits. In the…

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: Which of the following vocabulary words defines the energy due to motion?  A.Heat B.Potential…

A:

Q: 2)historically,some of unit differences reflected the belief that the quantity measured was…

A: Introduction- To define historically how the erg and calorie unit exist as a single entity. These…

Q: 1-During an experiment vinegar was added to baking soda. The following observations were recorded.…

A:

Q: Calcium carbonate (chalk) in not soluble in water. What type of matter results when calcium…

A:

Q: A bottle of sports drink is homogeneous or heterogenous ? B) well water is a pure substance of a…

A: A mixture is defined as a material made up of two or more different substances that are not…

Q: Is the process of bananas ripening a chemical change or a physical change? Explain.

A: A Physical change is defined as a change that results in a change in the physical appearance of the…

Q: 1.18 You are hiking in the mountains and find a shiny gold nugget.It might be the element gold, or…

A: Given: To determine the physical properties such as appearance, melting point , density or physical…

Q: Which answer lists all the substances below that are compounds and not any elements or mixtures? I.…

A: A compound is a substance that has a definite proportion of each entity present in the substance. A…

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

A:

Q: Which of the following would you characterize as a pure ornearly pure substance? (a) baking powder;…

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.