Match the formulas to names and names to formulas.

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: Define element and compound.

A: Given terms,       Elements and compounds.

Q: . Milk of lime is lime in water. true or false

A: Given  Milk of lime is lime in water

Q: Write balanced equations for each of the processes described below. (Use the lowest possible…

A: The electron capture is transformation of atomic nucleus in which an electron from the atom is…

Q: Differentiate between Molecules and Molecular Compounds?

A: Differentiate between Molecules and Molecular Compounds

Q: CHEMICAL REACTIONS IN THE HOUSEHOLD SETTING CHEMICAL REACTANTS PRODUCTS EXCESS LIMITING REACTIONS…

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Q: A chemical change is a change in composition resulting in a product with different properties.…

A: The objective of the question is to verify the definition of a chemical change.

Q: 8. Fill in the following boxes. . HO, heat HO, SOCI2 NaN3 1. he t 2. H2C 2 MeI +

A: There is lots of reaction involved in the given questions.

Q: write T if underlined word iscorrect, write the correct answer if false   1. Graphene can be found…

A: The periodic table is defined as arrangement of the chemical elements in the form of a table. It has…

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: Supposed to magnesium feelings and sulfur or heat it so they react with each other forming magnesium…

A: Concept: The pure substances have constant composition throughout the given substance. The mixed…

Q: 2. Consider the following reactions: Си + 8HNO3 3Cu(NO3)2 + NO + 4H20 How many moles of NO are…

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Q: Why a piece of wood is a mixture?

A: Wood is a substance made up of cellulose, hemicelluloses, and lignin.

Q: Are the Molecular Formulas of I and J the same or different? (Circle one) Do molecules I and J have…

A: 1 :  Yes (I and J are having same molecular formula). 2:  Yes (I and J are having same…

Q: Claim 3: "Both of the carbons atoms in Molecule 1 have tetrahedral geometry." (a) Agree/Disagree: Do…

A: The sum of bond pairs and lone pairs gives the information about the type of hybridization.

Q: Two or more substances in variable proportions, where the composition is constant throughout are a…

A: A compound is a chemical species that is formed when two or more atoms join together chemically,…

Q: What is a molecular element?

A: A compound refers to the molecule which contains at least two different type of elements bonded…

Q: aa. Heating sodium bicarbonate bb. ammonium sulfide and hydrobromic acid  cc. calcium perchlorate…

A: There are various types of chemical reactions such as displacement reaction, redox reaction,…

Q: What is the relationship between these two molecules.

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Q: b) c) Why do these two solutions 3. Complete the following table. Be sure to show each cal pKa…

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Q: Claim 2: "These two substances most likely have identical properties." (a) Agree/Disagree: Do you…

A: The molecules given are, Given: These two substances are most likely to have identical properties.…

Q: What is atom? molecule? compounds? definition, structure and  examples? The structure of atoms?

A: Given the following terms: Atom Molecule Compounds

Q: shape represents a type of particle (such as an atom or a molecule). Classify mixture, or…

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Q: True or false, explain your answer.

A: The compound contains a stereocenter, specifically the carbon atom bonded to the oxygen atom (C∗).…

Q: Mass of Sample Moles of Sample Molecules in Sample Total Atoms in Sample 4.59 g C6 H6 g 0.228 mol H2…

A: One mole of any substance contains Avogadro's number of particles such as atoms, molecules. The…

Q: List two differences between a compound and a mixture

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

Q: alculate the formula mass for each of the following compounds. ZnCO3ZnCO3 Express your answer using…

A: A set of 4 molecules, whose formula masses are to be determined.

Q: U-238 is naturally the most abundant form of uranium; however, only U-235 can be used as fuel in a…

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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.