Carbon monoxide is an example of a: O Element O Compound O Homogeneous mixture O Heterogeneous mixture

Q: Most substances are composed of _________ rather than elemental substances

A: Element:  A substance that cannot be broken down into simpler substances by chemical or physical…

Q: Which of the following are elements, which aremolecules but not compounds, which are compoundsbut…

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Q: Here are the four sketches os pure substances.each sketch is drawn as if a sample of rhe substance…

A: Given diagram is :  There are the four sketches of pure substances .each sketch is drawn as if a…

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

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Q: Fill in the blanks by writing the name of the definition: is a substance made up of only a single…

A: an element is a substance that cannot be broken down into any other substance every element is made…

Q: preted by a chemical ra(n) _compound always combine in proportions. A(n) mixture is made of two or…

A: The solution of the given problem is as given below:

Q: What is the key difference between an element and a compound?

A: An element can be present in atomic form or molecular form and it is pure substance.  eg. Hydrogen…

Q: Sodium chloride (chemical formula NaCI) has different properties than the elements (Na & CI) that it…

A: Concept: The physical properties of an compound are often quite different to the physical properties…

Q: Chemical equations must be balanced to satisfy the O law of definite proportions O law of…

A: Option B is correct.

Q: A molecule has a mass of 4.65 x 10^-23 g. Provide two possible chemical formulas for such a…

A: Given  mass of 1 molecule = 4.65 x 10-23 g we know  mass of 1 molecule = 1 mole  1 mole = 6.022 x…

Q: Which pair of statements about mass is true? O A. After a physical change the total mass is the…

A: The pair of statements about mass is true has to be given,

Q: This picture represents * Atoms of an element O Molecules of an element O Molecules of a compound O…

A: Atoms are indivisible particles of matter. Elements that cannot be decomposed. Compound composed of…

Q: which of the following statement is incorrect * All parts of mixture show same O properties called…

A: Law of conservation of mass states that Total mass of reactants is equal to the total mass of the…

Q: The following picture represents.. Mixtures of elements Mixtures of compounds Molecules of elements…

A: What are the chemical species present in the following

Q: Classify these substances. More than one answer may apply in each case. N2 O heterogeneous mixture O…

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Q: Which elements have molecules as their basic units?(a) helium (b) oxygen(c) iron (d) bromine

A: The elements which have  molecules as their basic units has to be given,

Q: Vhich statement about pure substances and molecules is correct? Molecules cannot be pure substances.…

A: molecules are made up of two or more atoms combining in a specific ratio. Pure substances are those…

Q: Mixture of water and sand is an example of Heterogeneous mixture Select one: O True O False

A: Answer  A mixture in which the composition is not uniform throughout…

Q: This picture represents Atoms of an element O Molecules of an element O Molecules of a compound A…

A: An atom is a single entity whereas a molecule consists of two or more atoms. Atoms in a molecule…

Q: After two elements react to completion in a closed container, the ratio of their masses in the…

A: In general chemistry, a number of theories were proposed to explain the nature of matter, particles,…

Q: Matter consists of tiny particles that can combine in specific ratios to form substances with…

A: A theory gives us a well-structured explanation of an observed phenomenon that is confirmed through…

Q: Question is attached

A: A mixture has at least two components, when they are mixed, there are two possibilities arise. One…

Q: Brass is a combination of copper and zinc metals. How would you classify brass? Element O…

A: Alloys are the compounds which are made up of two or more metals. The property of a metal can be…

Q: Classify each of the following as a COMPOUND or an ELEMÉNT: argon gas (Ar) salt (NaCl) 1. Compound…

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Q: Which of the following is a molecule, but not a compound? A) CO2 B) Ag C) NaCl D) N2 E) Ne

A: To identify the molecule which is not a compound.

Q: A_ is formed by a chemical combination of two or more elements. Select one: O New element O…

A: Homogeneous mixture  The mixture which is formed by the two or more substance by the  uniform…

Q: Which of the following is a compound? milk aluminum foil silver salt

A: Compound demonstrates the bonded atoms of two or more elements .

Q: Compounds are composed two or more elements chemically combined while mixture are composed of…

A: A question based on introduction to chemistry that is to be accomplished.

Q: To which classes of matter—element, compound, and/ormixture—do the following apply: (a) law of mass…

A: The law of conservation of mass deals with the conservation of matter and law of definite…

Q: All samples of a given compound, regardless of their source or how they were prepared, have the same…

A: The combination of various components to form compounds is regulated by certain fundamental laws.…

Q: "Noble gases are non-reactive" is an example of a O chemical change O physical change O chemical…

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Q: How do the molecules of a compound differ from the moleculesof an element?

A: Molecules are group of atoms where the atoms are held together by a chemical bond. They can result…

Q: A chemical formula that shows the actual # and kinds of atoms present in one molecule of a compound…

A:

Q: A/ An______________ is a combination of two or more ________________________. Select one: Compound;…

A: Chemistry is the study of the structure,physical properties,and chemical properties of material…

Q: he mass o

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Q: Which of the following is most likely going to be a heterogeneous mixture? (A) C10H8 and H2O…

A: Heterogeneous mixture is a type of mixture which has all components in different phases and also the…

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: Question 2 Give the classification of matter when two substances are present as a heteroatomic…

A: If same kind of atoms = homoatomic molecule If different kind of atoms = heteroatomic molecules

Q: Pure Compound Mixture of an Element Pure Element Mixture of Two Elements Mixture of Two and a…

A: A pure element consists of only one type of atom.  Eg:- H,  C, O etc.  A pure compound consists of…

Q: Which of these are compounds (not elements)? NaCI O CaCl2 Н2 O N2

A: An element is defined as a material which consists of or  is made up of same atoms, whereas a…

Q: Mixture of water and petrol is an example of Homogeneous mixture Select one: O True O False

A: Homogeneous mixture : The 2 or more   substance whose composition is uniform throughout the mixture…

Q: Match the following terms with the best description below. Place the letter on the line. B.…

A: Answer- 1) study of matter- anything having mass and occupying space →Chemistry 2) Main attractive…

Q: ing Part II. Classify the following mixtures whether a H OMOGENEOUS or a HETEROGENOUS. Write your…

A: Since you have asked multiple question, we will solve first question for you. If you want any…

Q: Relerences) Choose examples of an element, a compound, a heterogeneous mixture, and a homogeneous…

A: Elements forms from same kind of atoms. Whereas , compound forms froms different kind of atoms.…

Q: Classify the statements pertaining to elements and compounds as either true or false. True False…

A: We are given different statements in the image we have to classify the statement as true and false:…

Q: In what main way is separating the components of a mixture different from separating the components…

A: The mixing up of two or more substances gives a mixture. There is no chemical change observed in the…

Q: Which of the following is a property of carbon atoms? im not sure which one because arent carbon…

A: The atomic number of carbon (C) is 6. Therefore, its electronic configuration is 1s2 2s2 2p2. There…

Q: In the given depiction of a substance, each sphere represents a chlorine atom. = CI What is the…

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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.