1. Identify the following as examples of chemical or physical changes. glass melting a. b. milk being made into cheese a dentist drilling a tooth C. d. ironing a shirt a newspaper yellowing in the sun e.

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: Which answer includes all the following that are chemical changes and not physical changes? I.…

A: Physical change is a reversible change. It involves a change in the physical state, size or shape of…

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: Identify each property as chemical or physical.a. The element mercury has a high density.b. Solid…

A: The given statements has to identified as whether physical or chemical property.

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: Measuring the mass and volume of a piece of chalk is a way of investigating its _____. A.Chemical…

A: 1. We need to check if mass and volume are intensive or extensive properties and if they relate to…

Q: 4. Which of the following are homogeneous mixtures? Which are heterogeneous mixtures? a. rubbing…

A: A mixture is a combination of two or more substances. It was classified into two types i.e.…

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: State whether the following properties of matter are physical or chemical. a. An iron nail is…

A: The change of one type of matter into another type (or the inability to change) is a chemical…

Q: Which substance can be separated by filtration?  A. Compound B. Element C. Mixture D. Solution

A: Matter exhibits two types of property:  Physical and chemical

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 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: Classify the following as to chemical or physical change: Assignment : Copy and write your answer…

A: Physical changes only change the appearance of a substance while in chemical changes the the…

Q: Which one of the processes listed below describes (rather than physical) change? a. Fat is…

A: Physical change is the change that causes a change in the texture, shape, volume of any compounds.…

Q: Indicate whether each sample of matter listed is a substance or a mixture; if it is a mixture,…

A:

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: 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: Classify the following as to chemical or physical change: Assignment : Copy and write your answer…

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

Q: Which of the following statements describe chemical property? a. An iron bar rusts. b. Ice melts…

A: Since you have posted multiple questions, we are entitled to answer the first only.

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: - 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: Classify the following as physical or chemical changes. a.Moth balls gradually vaporize in a closet.…

A: A physical change is explained as the change in state (solid, liquid or gas) size, shape and any…

Q: To the best of your knowledge, classify each of the following as an element, A compound, or a…

A:

Q: 1. The following are properties of the metal aluminum. Classify them as physical or chemical a. It…

A: A physical property: It is defined as a characteristic of a substance which can be observed or…

Q: A Classify each example as a physical change or a chemical change.a. crushing an aluminum canb.…

A: A physical change occurs when matter changes its form but not the identity. It includes change in…

Q: 1. Metal Ore a. element b.compound c. mixture   2.  Grinding dried leaves into a fine powder…

A: We have to classify metal ore and type of change occuring on grinding leaves.

Q: 1. Classify each of the following as a physical change or a chemical change. For each chemical…

A: A chemical change is a type of change where the chemical properties of matter change. It is commonly…

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.