Which element or elements are present in the unknown mixture?

Q: Q1. The colour of silver and gold nanoparticles changes according to the particle's ....... OK

A: The color changes depending on the size/shape of the gold nanoparticles.

Q: In which of the following are the components chemically combined compound O heterogeneous mixture O…

A:

Q: A mixture is composed of two or more pure substances. True or False.

A: A mixture is defined as the combination of two or more different substances physically.

Q: What is Heterogeneous mixture?

A: Mixtures-these are formed by combination of two or more substances in random proportions can be…

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

Q: Classify the following as element, compound, homogeneous mixture or heterogeneous mixture: i). A…

A: Element: An element is a chemically pure substance that can't be further broken down into chemically…

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: A volatile liquid (one that easily evaporates) is put into a jar, and the jar is then sealed. Does…

A: Law of conservation of mass: According to the law of conservation of mass, for a closed system to…

Q: define mixture and distinguish between mixtures andcompounds;

A: A mixture is a combination of two or more substances that can be mixed together in any proportion.…

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: How are elements different from compounds?

A: Elements - A substance which cannot be further broken down into simpler substances are known as…

Q: Why does knowing the mass of an object not help you identify what material the object is made from?

A: Mass is not always the same for objects made from same material.

Q: Is the melting point of a chemical a physical property or chemical property

A: Physical property :-  A property which can be measured without changing the chemical composition of…

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…

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Q: Describe the characteristics that identify a sample of matter as a substance.

A: Substance is a matter. Matter is something which occupies space. We all know that there are three…

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: Which of the following pairing is incorrect? Seawater - Homogeneous Mixture Magnesium - Element O…

A: Element :-  Pure substance consisting of only one type of atoms is called as element Compound :-…

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: Select the best answer or answers from the choices given: Which of the following does not describe a…

A: Matter is defined as the substance that has mass and that can occupy some space. Matter is formed…

Q: Describe the characteristics of a mixture.

A: Matter is broadly classified into mixtures and pure substances. Pure substances are known for their…

Q: If a sample of matter is uniform throughout and cannot be separated into other substances by…

A: element and compound are pure substances that have uniform throughout the composition.

Q: Pure Homogeneous Heterogeneous Substance Substance Mixture Mixture Concrete Seawater Magnesium…

A: Pure substance : These are made up of only one kind of particles. Homogeneous mixture : The…

Q: How are physical properties different from chemical properties?

A: Difference between physical properties and chemical properties:

Q: A substance composed of 2 or more elements in a fixed, definite proportion is considered a…

A: Answer :- Option C is correct answer.    Compounds   Compounds are made up of two or more elements…

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: Distinguish between elements and compounds.

A: Elements can be described as the simplest form of the pure substance which can not be broken down…

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

A: Applying definition of compounds.

Q: Is gasoline an element a mixture or a compound

A: Gasoline is obtained as a product in the distillation of crude oil.

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: 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: Which type of matter has a definite compositionthroughout and is made of more than one type…

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

Q: Differentiate between Element and Compound?

A: Element: A pure chemical substance contains same type of atom is called element.  During a chemical…

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: description of an element at the particulate level

A: An element is a substance that has only one type of atoms. These atoms are not chemically connected…

Q: Difference between homogeneous and heterogeneous mixture

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

Q: What are the different techniques for separating mixtures?

A: The different techniques to separate mixtures in laboratory are as follows:

Q: A solid white substance A is heated strongly in the absence ofair. It decomposes to form a new white…

A: The chemical reaction taking place is,

Q: Explain and give examples of Physical and chemical properties.

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

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Q: Is the following a chemical change, physical change or both? Explain. the ability to digest food

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Q: What is the difference between a physical property and a chemical property?

A:

Q: Determine whether molecular diagram represents a pure substance or a mixture. If it represents a…

A:

Q: Identify each of the following as a element, compound or mixture: -Pasta and tomato sauce -Aluminum…

A: The given substances are classified as follows,Pasta and tomato sauce -  MixtureAluminum foil –…

Q: Design a procedure to demonstrate whether whole milk, which consists of microscopic fat globules…

A: This mixture contains non uniform solution, it can be easily separated into it's pure compound by…