- Which of the following are chemical changes? Which are physical changes? - a. the cutting of food · b. interaction of food with saliva and digestive enzymes " C. proteins being broken down into amino acids • d. complex sugars being broken down into simple sugars · e. making maple syrup by heating maple sap to remove water through evaporation

Q: whats the difference between homogeneous and heterogeneous mixtures?

A:

Q: 2. A solution of salt in water is a compound. heterogeneous mixture. a. b. homogeneous mixture. с.…

A: Homogeneous mixture : It is a mixture in which composition is uniform throughout the mixture.

Q: How does an atom differ from a molecule? In what ways are they similar?

A: Molecules composed of atoms bonded together by different kind of bonds. Atom is a sub-component of…

Q: Which of the following is not a chemical change? A. burning coal B. making bread rise using baking…

A: A chemical change is a change in which the initial compound is having different structure or formula…

Q: All atoms of a given element have the same ______.mass number. c. number of nucleons.number of…

A: An atom is composed up of three subatomic particles  electrons, protons, and neutrons.

Q: What is being represented by the picture below? * a mixture of compounds being physically separated…

A: 1.) To determine the nature of change , we would see what type of substance are on left side and…

Q: Which of these changes are physical and which are chemical? ExplainA goldsmith melts a nugget of…

A: A change in which the chemical composition of the substance remains the same and no new substance is…

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: What is a mixture? A. A solid gold ring B. Nitrogen and oxygen in a molecule C. Copper and lead…

A: A mixture is an homogeneous or heterogeneous solution in which different substances are present in…

Q: How does a heterogeneous mixture differ from a homogeneous mixture? How are they similar?

A: Mixtures are the result of mixing together of two or more substances. Example: Mixture of salt and…

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: Explain this statement in your own words and give an example. The properties of the substances…

A: Every compound is made up of atoms and molecules. The atoms combine in a fixed ratio to give the…

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: 1. In a change, one kind of matter is turned into another.

A: The answer to the following question is--

Q: (a) Under one set of conditions, the substances in A and B mix, and the result is depicted in C.…

A: To find: Whether the following changes are physical or chemical.

Q: The scenes below represent atomic-scale views of three samples of matter: Describe each sample as an…

A: Matters are the substances that are made up of very small particles and are not able to seen by…

Q: 12. What is an element? A compound?

A: An element and a compound has to be defined.

Q: 1. Any sample of matter has mass and takes up space. The main reason for this is because: * a. All…

A:

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: 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: Is baking considered a physical change or a chemical change?

A: Baking is a process in which item to be baked is mixed with baking soda and heated in oven. Baking…

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: 10. The following is a homogeneous mixture A. 70% isopropyl alcohol B. 100% isopropyl alcohol CES…

A:

Q: Vegetables is an example of  Element? Compound? Homogenerous mixture? Heterogenous mixture?

A: Vegetables are plant or part of plant that are cooked to consume in human body. They contain some…

Q: Question 3

A: The intermolecular distances between the gas particles are greater. Gas has no definite shape or…

Q: Which of the following statements is(are) true? a. A spoonful of sugar is a mixture.b. Only elements…

A: The statements, which are all true has to be given.

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: 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: Classify each change as physical or chemical. (a) A balloon filled with hydrogen gas explodes upon…

A: Given statements are : (a) A balloon filled with hydrogen gas explodes upon contactwith a spark.(b)…

Q: What is correct from multiple choice

A: The physical change affects either state or form of the substance. It does not affect the chemical…

Q: 1. Which of the following is NOT an example of physical property? B. Length A. Texture C. Intensity…

A:

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: 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: Which of the following is not an example of a physical change? a. Ice melts when warmed b. Dry ice…

A: Physical change of a substance means molecules of that substance are rearranged but actual substance…

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

A:

Q: How are the properties of a compound related to those of the elements that comprise it?

A: A compound is a material formed by chemically bonding two or more elements.  In any compound,…

Q: When popcorn is popped what happens?   Is this a physical or chemical change? Explain your answer.…

A: When popcorns popped they expand to become big in size.

Q: Which is not an example of a homogenous mixture? a.) blood b) alcohol c.) milk d.) soda

A: Mixture in which proportion of the substances are uniform and can’t be visible from naked eye is…

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: 1. When steam condenses, A. A physical change occurs. B. A chemical change occurs. C. Both physical…

A: When steam condenses a physical change occurs.

Q: what is the importance of studying matter and mixtures in chemistry? explain.

A: Matter can be defined as the substance that has mass and occupy space. There are three states of…

Q: 4. A satellite is launched from planet A to B. If planet A has a lower gravity than planet B what…

A:

Q: 1. Define what matter is. 2. How does physical property differ from chemical property? Cite an…

A: Everything that surrounds us is made of matter.

Q: Which of the following are chemical changes? a. Sawing a log b. Copper oxidizing c. burning a log…

A: Physical change : In the physical change substance can not forming new different substance and it is…

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 an example of chemical change. As carbon…

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: Use iced tea with and without ice cubes as examples to explain homogeneous and heterogeneous…

A: Heterogeneous mixture: A mixture in which components combine to give a non-uniform composition is…

Q: Which of the following changes is considered a chemical change? O a. Dissolving of sugar in water. O…

A: Given processes: Dissolving of sugar in water Crushing rock salt Evaporation of alcohol Melting of…

Q: Copper pennies Pour about 2 Tbs of vinegar into the bowl and add a 4 tsp of salt stir it up. Put…

A:

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.