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

Q: Is oxygen a homogeneous or heterogeneous mixture?

A: homogeneous mixture: it contains only one elemental form of pure substance. heterogeneous mixture:…

Q: Which of the following is the correct description of theinside of a grapefruit?(a) It is a pure…

A: Given fruit,           Grapefruit

Q: Define substance and chemistry.

A: Given terms,      Substance and chemistry

Q: Classify the following as element, compound, homogeneous mixture, or heterogeneous mixture. Some…

A: Homogenous mixture--->>It is a mixture of substances blended so thoroughly that you cannot see…

Q: Which of the following is the correct description of theinside of a grapefruit?(a) It is a pure…

A: Grapefruit is hybrid fruit which is originated from natural cross hybridization between sweet orange…

Q: II. Classify each of the following as an element (E), compound (C), homogeneous mixture/solution…

A: We are to classify the given substances as elements, compounds,  homogenous mixtures or…

Q: Define substance and give two examples of things that are substances.

A: The matters are defined as a substance, mixture, element, or compound. Each category of matter…

Q: Silver spoon is an example of  Element? Compound? Homogeneous mixture? Hetergeneous mixture?

A:

Q: Defend or refute the following statements: 1. A compound is a pure substance 2. The separation of a…

A: 1.  A compound is a pure substance. Yes, A compound is a pure substance. For example : CH4 is a…

Q: classify whether a substance is pure or mixture, element or compound homogenous or heterogeneous

A: 1. Moth balls - Mixture, Compound, heterogeneous mixture 2 Fire- It is a mixture of hot gas,…

Q: is paint a compound or element

A: An element is a pure substance that cannot be broken down by chemical mean. Compound is a chemical…

Q: is carbon dioxide classified as an element?

A: Given name is Carbon dioxide  We need to explain can cabon dioxide be classified as an element or…

Q: why are most things we eat a mixture and not pure substances?

A: Given: Most things we eat is a mixture and not a pure substance To find: Reason for it Solution:…

Q: If there is no physical change in the different materials that are combined together, __________ is…

A: Given statement is :  If there is no physical change in the different material that are combined…

Q: Which of the statements correctly describes a mixture? A mixture is ____

A: There are two type of mixture , they are homogeneous mixture and heterogeneous mixture.

Q: How can we say that sugar is solid and water is liquid?

A: There are three states of matter: Solid: It has fixed volume and fixed shape. It can not be…

Q: How is an element different than a compound?

A: Definition- An element is a pure chemical substance made of same type of atom.   A compound contains…

Q: is a pure substance which can not be broken down into simpler substances. Select one: Element O…

A:

Q: Water vapor is an example of a pure element pure compound heterogeneous mixture homogeneous mixture

A:

Q: How would you classify a pure silver necklace? O Compound O Heterogeneous mixture O Homogeneous…

A: Introduction- Compound is a substance that contain more than one element in it. It is a pure…

Q: Many of the itemsyou purchaseare mixtures of pure compounds . Select of three of these commercial…

A: Commercial products that are the mixtures of purecompound are as follows:

Q: What do you understand by the term 'homogenous mixture'?

A: A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture. All…

Q: What are compounds?

A: Compounds are chemical species which are formed by two or more atoms. * Compounds are always…

Q: If powdered elemental zinc and powdered elemental sulfur are poured into a metal beaker and then…

A: Element: A molecule made of similar type of atoms. Compound: A molecule made of more than one type…

Q: Based on the evidence, what metal are pennies mostly made of, and what metal are dimes mostly made…

A:

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: Which substances are molecular substances? water in glass ice in glass motor oil mineral spirits…

A: Here we have to determine the following materials which are molecular substances

Q: Explain why chloroform is a pure substance and not a mixture

A: Pure substance :- The form of matter which is having constant chemical composition and…

Q: is distilled water pure substance?

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

Q: why are elements and compounds both pure substances?

A: The formation of compounds due to a combination of elements is governed using certain laws. These…

Q: The tap water found in many areas of the United States leaveswhite deposits when it evaporates. Is…

A:

Q: a heterogeneous mixture is

A: In this question we have to tel that what is correct option of heterogeneous mixture.

Q: Which of the following is a pure substance? baking soda salt water cooking oil duct tape orange…

A: Pure substances are compounds with individual chemical and physical properties with same…

Q: Which is a pure element? * Nacl

A: The pure elements are composed of a single type of elements and thus they are classified as pure.…

Q: Complete the following statements. The provided aqueous KI/I2 was a:                  pure…

A: In a homogeneous mixture, the components completely mix with each other and the composition is…

Q: depicts

A: According to the question, we need to determine which image depicts a homogenous mixture.  We know…

Q: which is an example of a mixture

A: Mixtures are the combination of two or more substances and they are not chemically combined.

Q: A compound is a pure substance whose smallest representative is identified as?

A: Applying definition of compounds.

Q: The photo below shows a picture of an agate stone. Jack, who picked up the stone on the Lake…

A: Now first when we consider jacks arrgument we see that the agate ston eis formed by the combination…

Q: How do we know a substance is a compound, mixture or element?

A: Mixer is the physical combination of two or more substances/compounds, where identity of each…

Q: O All molecules are pure substances.

A:

Q: The following picture would be best described as A) a liquid compound B) a liquid mixture C) a…

A: Liquid particles have more intramolecular forces than gas particles.

Q: Chemistry is the study of ______

A: Chemistry is the study of matter and chemical reactions between different chemicals in the living…

Q: is sugar water considered to be a heterogenous mixture and if so why

A: A homogeneous mixture is the one in which composition of molecules is uniform throughout the…

Q: Is dry ice pure substance?

A: Pure Substance can be defined as substances that are made of only one type of atom or molecule. It…

Q: Seawater is composed of salt, sand, and water. Is seawater a heterogeneous or homogeneous mixture?…

A: Homogenous mixture is a mixture in which the components of the solution are uniformly distributed…

Q: List two differences between a compound and a mixture

A: Two differences between a compound and a mixture :…

Q: Define physical property and provide examples.

A: The characteristics of a substance can be identified using physical or chemical properties. When the…

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…

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.