Explain why chloroform is a pure substance and not a mixture

Q: What are the different ways of separating mixtures? Explain the difference between chemical…

A: If a mixture is made by mixing water and sugar then the mixture maintains the properties of both…

Q: Can a chemical change result's in no new substances。?

A: Physical change: Physical change involves one phase to another phase without breaking or making the…

Q: A spilled substance in the laboratory may be left unattended/ uncleaned even after a few days. The…

A: Concept is based on laboratory:

Q: When a substance changes from a liquid to a solid, which of the following is TRUE? a) b) c) The…

A: There are more attraction forces between the particles of solid than that of liquid.

Q: A marshmallow is toasted over a fire. It turns golden brown and caramelizes on the outside. It…

A: The toasting or roasting of a marshmallow is considered a chemical change in general as there are…

Q: Both a mixture and a compound are combinations of substance. So explain how they are different

A: Compounds  - These are the substances that  are made up of more than one type of atoms. Mixture…

Q: When energy is added to a liquid, it’s particles begin to move what

A: When we add energy to liquid it’s particles begin to move as increase in motion occur and particles…

Q: or more substances that place but are >A mixture is made up of are in the not chemically combined. >…

A: Mixture : A mixture is a substance in which two or more substances mix with each other without any…

Q: different chemicals store different amounts of energy in their what??

A: The correct answer is BONDS or CHEMICAL BONDS . The energy ( chemical energy or sometimes called…

Q: Name: Class Dare For each property of matter below, write the name of the property ond whether it is…

A: Physical property is the property of a substance which is observed by without changing its…

Q: 114. Classify each as a pure substance or a mixture. If it is a pure substance, classify it as an…

A: An element is the simplest type of substance comprising of a single type of matter.  A compound is…

Q: Classify these substances. More than one answer may apply in each case. H, pure substance element…

A:

Q: A marshmallow is toasted over a fire. It turns golden brown and caramelizes on the outside. It…

A: Physical change - Observed when there is change in the state of a chemical substance but it's…

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: s0000 600 700

A: If we increase the kinetic energy of water molecules (usually done by heating them) then the…

Q: How is kinetic and potential energy differ?  How are they related?  Please cite an everyday…

A: When an object is at rest the body is said to possess potential energy. in another case when the…

Q: Heterogeneous & Homogeneous Mixtures Notes Ask this question to tell the two types of mixtures…

A:

Q: Defend or refute the statement • A compound is a pure substance

A:

Q: 1.) In the laboratory a student finds that it takes 4.75 calories to increase the temperature of…

A: 1) Given: Mass of lead = 10.4 g. Amount of heat added = 4.75 calories. The initial temperature of…

Q: Think about what you already know about different phases of matter. Given this figure showing the…

A: Matter exists in three states such as solid, liquid, and gas.  The conversion of one state to…

Q: List three examples of substances. Explain why each is a substance.

A: List three examples of substances. Explain why each is a substance.

Q: What is a mixture is a combination of

A: To explain: A mixture is a combination of what?

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: an endothermic phase

A:

Q: Substances maintain their identity in a heterogeneous mixture but not in a homogeneous mixture.

A: Homogenous mixture are those mixtures in which the proportion is same throughout the mixture. We…

Q: Milk is homogeneous mixture and not a compound. Explain this statement.

A: Ans    Milk is a mixture made up of various compounds 1. fats, 2  sugars, 3. water  4. proteins,…

Q: is distilled water pure substance?

A: Distillation is a purification technique. In this process each compound from the mixture get…

Q: Bronze is an example of Homogeneous mixture ؟ true or false

A:

Q: In the laboratory a student finds that it takes 34.3 Joules to increase the temperature of 13.7…

A:

Q: density of the sample

A: Heat absorbed by a substance is given by Heat(q) = ms.□T Where,  m = mass of  sample s = specific…

Q: Are the magnesium sulfate (MgSO4) and the sodium carbonate (NaCO3) still pure substances after you…

A: No,magnesium sulfate (MgSO4) and the sodium carbonate (Na2CO3) are not the pure substances after we…

Q: 2. As energy is added to a substance, the temperature remains constant. How may the substance be…

A: When the energy is added to the substance, the kinetic energy of the molecules in creases and they…

Q: which of the following substances would have the least amount of heat of formation A. Gaseous…

A: Standard Heat of formation or standard enthalpy of formation Denoted by ∆H.

Q: Give at least one chemical changes that are obviously accompanied by energy change.

A: A change in which chemical composition of substance changes is called a chemical change. For…

Q: Air is a mixture of many gases, primarily nitrogen, oxygen, and argon. Could distillation be used to…

A: Air is a mixture of many gases, primarily nitrogen, oxygen, and argon. Could distillation be used to…

Q: Which state has more Kinetic energy?a) Liquid Water b) Solid water c) Water vapor

A: The kinetic energy is energy possessed by an object due to its virtue of motion.

Q: 11. Eric watches the snow melt outside. He claims it is an exothermic process. Maggie tells her it's…

A: Please find your solution below : 11. When a process absorbs the heat, it is called endothermic…

Q: What is the main difference between a pure substance and a mixture

A: Matter:  Matter can be define as anything that has a volume and a mass is called matter. Matter can…

Q: Gasoline is composed of a variety of different liquid hydrocarbons, which do not separate as time…

A: Gasoline is composed of a variety of different liquid hydrocarbons. These hydrocarbon does not…

Q: The freezing point of mercury is -38.8 °C. What quantity of energy, in joules, is released to the…

A:

Q: Mixture of water and POTASSIUM CARBONATE is an example of Homogeneous mixture

A: Given, Mixture of water and potassium carbonate.

Q: How can you tell that a pizza is a heterogeneous mixture

A: Given: Pizza is a heterogeneous mixture.

Q: Give an example of a homogeneous mixture and anexample of a heterogeneous mixture.

A: Mixture : In terms of chemistry, whenever two or more than two atoms/molecules/compounds/substances…

Q: nt Compound Heterogeneous mixture Homogeneous mixture

A: Element is defined as which is formed by single Same atoms Compound is defined as which is formed by…

Q: Chemical potential energy and simply potential energy differ because its stored energy: (select all…

A: Energy is a thermodynamic quantity that indicates the capacity to do work. There are two major types…

Q: What are the properties of physical changes

A: Physical change is the change in physical state of the substance.

Q: What is a theoret yeild and how do you find it?

A: Consider the hypothetical reaction, shown below where n represent the number of moles of chemical…

Q: Briefly discuss the difference between a homogenous mixture and a heterogeneous mixture.

A: When different substances mix to form a uniform mixture in same phase , then it is called…