1- Wrik down Hhe physical preperhes of metals.

Q: Please Help!     1) Identify each box as an element, compound or mixture of compounds. 2)…

A: Elements - In chemistry, element is a pure substance consisting only only one kind of atom that all…

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: Which of the following are examples of impure substances? Choose all that apply. D Heterogeneous…

A: Substances can be classified as pure and impure substances.  There are given different substances,…

Q: The sulfite polyatomic anion is SO3²-. O True O False

A: A polyatomic ion is an ion (cation or anion) composed of more than one atom. The atoms in polyatomic…

Q: 14 carat gold (an alloy) is

A: As we know , Alloy is a homogenous mixture of two or more metals or a metal & a non metal…

Q: For the following reaction, Na* (aq) + OH (aq) + H* (aq) + Cl- (aq) Na* (aq) + Cl- (aq) + H20 ()…

A: In given reaction , sodium ion Na+(aq) and chloride ion cl-(aq) remain same in both left hand side…

Q: 1. What is physical change? A chemical change?|

A: As you didn't asked for a particular question number I'm giving you answer of first question. Please…

Q: Disungdishing chemical and physical change There &r sketches below. The first sketch shows a sample…

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Q: 5. In which separation method are mixtures spun in a circle? A) filtration B) centrifugation C)…

A: Separation methods are techniques used to isolate and purify different substances in a mixture.…

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

A: Element - It is a pure substance made up of only a single atom.  Compound - It is a pure substance…

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: Please complete blank

A: Organic reactions are of different types. One such type is called polymerization reactions. In this…

Q: H2O ? (b) -ОН ?

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Q: Is wood burn change? a physical or chemical O Physical O Chemical

A: Burning of wood is physical or chemical change ?

Q: All molecules attract each other to some extent,and the attraction decrease as the distance between…

A: Intervention between the particles depends upon the distance present between them. As stated in the…

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: 2 Н целат Мат ОН ОН

A: The question is based on the concepts of Organic reactions. we need to write the product formed in…

Q: 2. { a) Sodium and chlorine are elements. c) Sodium chloride is a pure substance. Which one of the…

A: 1st statement  Sodium and chlorine are elements is a correct statement.   2nd statement Sodium…

Q: 1. Substances that can be broken down into simpler compounds or elements by a chemical change 2.…

A: A compound is a material composed of two or more components. For example Water, carbon dioxide etc.…

Q: Pure substances have many ions heterogeneous mixtures a uniform appearance100

A: To find: The pure substance have--------?

Q: 2. A chemistry teacher searching for his golf ball in the trees this summer found a magical pool of…

A:

Q: Write true for the correct statements and false for the A physical change is a change in the…

A: A set of true or false questions based general chemistry, which are to be accomplished.

Q: Which of the following is an example of a chemical property? O A. Boiling of water O B. Sugar is…

A: Physical property - .No new products are formed, only the physical state of the substance…

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: 2. ond DrNuy the

A: I guess there is a mistake in the formula given. It should be Li4(Mo2(CH3)8.

Q: 10. Give the number of the diagram below that represents a particulate view of (a) a mixture of…

A: If we put gaseous molecules in a container, they move randomly in container due to brownian motion…

Q: Set the things below into the categories of either pure,mixture, heterogeneous mixture,element, pure…

A:

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: 15) Which one is the derived unit? ( 16) 17) A) Length B) mass C) Time D) Force Which one is not the…

A: Questions are about units errors and chemical and physical changes

Q: Which of the following are extensive properties? Choose all that apply. Mass O Density O Volume…

A: In thermodynamics, two types of properties present- 1)Intensive property 2)Extensive property

Q: 62. List the energy conversions that occur in the process from the time water is about to enter a…

A: The law of conservation of energy states that energy can neither be created nor destroyed it can…

Q: ) Please Proude I a)

A: IUPAC stands for International Union of Pure and Applied Chemistry. It is a set of logical rules…

Q: picture. Classify it with the given words. light producer / light reflector Moon: Cat: Flashlight:…

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Q: differentiate between homogeneous and heterogeneous mixture?

A: A homogeneous mixture has a uniform composition throughout its mass whereas a heterogeneous mixture…

Q: The diagram shows balls of aluminum foil dropped intowater. In one case, the ball floats on the…

A: Case 1 :                  Larger ball of aluminium foil that can be compressed to a smaller one.…

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: Classity each of the properties as a physical property or a chemical property. Drag each item to the…

A: Physical properties: These are the properties that can be measurable. There is no change in the…

Q: Fact, Law, Hypothesis, or Theory? __ An object less dense than the air flies up on its own. __…

A: Factt: It is known or proved to be true. Law: A scientific law is the description of an observed…

Q: I need help describing if its a mixture or pure substance I did the other 4 but not sure about the…

A: We need to identify whether it is a mixture or a pure substance.

Q: (p) heterochain polymer (q) homochain polymer (r) homopolymer (s) hyperbranched polymer (t) ladder…

A: A polymer is a large molecule composed of repeating units called monomers. The monomers are bonded…

Q: Use the following diagrams to answer the question(s). SAMPLE 1 SAMPLE 2 SAMPLE 3 SAMPLE 4 Intro to…

A: Element is consists of same type of atoms. All atoms of elements should be similar on all aspects.…

Q: All molecules attract each other to some extent, and the attraction decreases as the distance…

A: All molecules pull each other to some degree, and the affinity reduces as the distance between the…

Q: (a) addition polymerization (b) alternating copolymer (c) block copolymer (d) branched polymer (e)…

A: A polymer is a large molecule composed of repeating units, called monomers, connected by covalent…

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.