why is the separation of mixtures into pure or relatively pure substances so important when perfoming a chemical analysis?

Q: What are the different ways of separating mixtures? Explain the difference between chemical…

A: If a mixture is made by mixing water and sugar then the mixture maintains the properties of both…

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: Some mixtures do not have the same composition, properties, and appearance throughout. Why?

A: Mixtures are defined as the substances which is formed when two or more substances are combined such…

Q: Classify Matter According to Its Composition: Elements ?

A: ANSWER IS :

Q: Which of the following mixtures can be separated by handpicking? *

A: Seperation techniques :  Few common methods of seperating substsances (or) mixtures are  1.…

Q: I am having trouble understanding the difference between a compound and mixture and how to identify…

A: When two or more elements are present together they are called compounds. Mixtures are made up of…

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: Describe how energy is transformed as the substances are mixed

A: Energy transformation takes place from one substance to the another but the system's overall energy…

Q: Distinguish the difference between a coefficient and a subscript?

A: 1.Subscripts are part of the chemical formulas of the reactants and products which indicates the…

Q: Which term best describes carbon dioxide, CO2? a. an atom b. an element C. a homogeneous mixture d.…

A: A chemical compound is a chemical substance composed of many identical molecules composed of atoms…

Q: | Which one of the following is often easily separated into its components by simple techniques such…

A: The combination of two or more substances without the participation in the chemical reation yields a…

Q: 2. Classify the following materials as heterogeneous mixture, solutions, compounds, or plements. a.…

A:

Q: Why are intensive properties useful for identifying a substance?

A: Intensive properties and extensive properties are classified as the types of physical properties of…

Q: Classify the following materials as substances or mixtures: absolute (pure) alcohol, milk (as…

A: A material can be classified as mixture or substance depending on their properties. The material…

Q: Sugar is a compound made of the elements carbon, hydrogen, and oxygen. If you add sugar to water,…

A: In this question, we have to distinguish between compound and mixture.

Q: What is another common situation in which a chemical change also leads to a physical change?

A:

Q: The fundamental difference between gravimetric and volumetric analysis: a gravimetric analysis…

A: Yes you are absolutely right

Q: Classify each change as physical or chemical. (a) the explosion of gunpowder in the barrel of a…

A: ANSWER

Q: Is air a solution or a heterogeneous mixture? What technique can be used to separate air into its…

A: Air is mixture of many gases like Nitrogen, Oxygen, Carbon-dioxide etc. These gases makes up the…

Q: 1. A mixture (shown below) contains the following components: (1) salt, (2) water, and (3) gasoline.…

A: We are given a mixture of three components i.e salt + water + gasoline.

Q: How is accuracy and precision related to errors incurred in the chemical analysis?

A:

Q: Describe the characteristics of a mixture.

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

Q: a heterogeneous mixture is

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

Q: differentiate between homogeneous and heterogeneous mixture?

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

Q: How are physical properties different from chemical properties?

A: Difference between physical properties and chemical properties:

Q: 4. Determine which of the following are mixtures. Water dissolved in alcohol Water dissolved in…

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

Q: A ______________________is the physical combining of two or more substances (not necessarily…

A:

Q: Write the different methods of Equivalence Calculations?

A: There are various methods of finding equivalence point. Few of them are as follows: 1) Color change…

Q: How do physical properties and chemical properties differ?

A: How the physical and chemical properties differ has to be given.

Q: Is the decomposition of copper(II) sulfate hydrate a physical change or a chemical change? Explain.

A: Given: Decomposition of copper (II) sulfate hydrate i.e. CuSO4·5H2O.

Q: How is accuracy and precision related to errors incurred in the chemical analysis?

A: In chemical analysis there are mainly two categories of measurement. Qualitative analysis…

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: Differentiate between Mixtures and Compounds?

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

Q: The following compounds could be separated by which one of the options for Separation of Mixtures:

A: The following compounds could be separated by which one of the options for Separation of Mixtures:

Q: Name the different methods that can be used for separation of components of a mixture.

A: The different methods that can be used for separation of components of a mixture are to be given.

Q: What are the important considerations in reporting analytical results?

A: Analytical result : A data analysis after experiment is called analytical result.

Q: What separation method could you use to separate water from alcohol? *

A: Separation methods are those  techniques by which different compounds in a mixture are separated…

Q: Using an example, explain the difference between a physical property and a chemical property

A:

Q: what is the importance of studying matter and mixtures in chemistry? explain.

A: Matter can be defined as the substance that has mass and occupy space. There are three states of…

Q: Mixtures are created by physical means (mixing a substance with another; no chemical bonding); if…

A: A mixture is a material containing two or more elements or compounds that are in close contact and…

Q: Which of the following is not the general step in the chemical analysis? a. sampling and sample…

A: General steps in a chemical analysis Identification of the problem and formulating questions Select…

Q: What are the different techniques for separating mixtures?

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

Q: 2. A student performs a separation mixture and obtains the following data: Mass (g) 75.254 g 80.524…

A: Since mass of empty beaker =75.254 g mass of beaker + mixture = 80.524 g => Mass of mixture =…

Q: 2) What evidence indicates that new substances with different properties are formed during chemical…

A: Evidences that indicates that new substance with different properties formed during chemical…

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

A:

Q: Use iced tea with and without ice cubes as examples to explain homogeneous and heterogeneous…

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

Q: 2. The Mercaptan content of household gas supplies is monitored continually to ensure that the gas…

A: As per our guidelines we can only solve first three sub-parts . Please resubmit other questions as…

Q: Differentiate between Physical Properties and Chemical Properties?

A: The characteristics possessed by the substances are known as their properties which may be physical…

Q: Give two chief characteristics of (i) Elements, (ii) Compounds and (ii) Homogeneous Mixtures.

A: Element is pure in nature as it consists of only type of atoms. And, Compounds is comprised of…

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.