19. The substance in the glass below is from a kitchen tap. Is it a pure substance or a mixture? What if it came from a bottle of dis- tilled water?

Q: Suppose a teaspoon of magnesium filling and a teaspoon of powdered sulfur are placed together in a…

A: MIXTURE : Mixture is defined as the physical combination of two or more different substances such…

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: is a homogeneous mixture and not a compound. Explain 2. How could you tell when the milk mixture had…

A: Milk is a homogeneous colloid. Colloids are mixtures that consist of tiny, insoluble droplets…

Q: What the difference between a mixture and a compound?

A: The differences between a mixture and a compound can be given as:

Q: Is water absorption a physical or chemical property? For example, we found out that Low Density…

A: Chemical properties: Properties that involves bond making and bond formation due to which one…

Q: what is chemistry? why is it reliable, flexible and testable?

A: Chemistry is a branch of science, which deals with systematic study of structure, composition and…

Q: Difference between mixture and compound?

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

Q: How can a liquid be distinguished from a fine powder? What type of experiment or observation might…

A: Both are made up of small particles. Perhaps the particles in a powder are larger than those of a…

Q: Heterogeneous & Homogeneous Mixtures Notes Ask this question to tell the two types of mixtures…

A:

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

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

Q: 25. Two types of matter are mixtures and pure substances. The two types of pure substances are

A:

Q: Why do the ability to separate and recover pure substances from mixtures is extremely important in…

A: Purity is a necessity of scientific research.

Q: Melting gold with other metals makes 10-karat gold. Which term best describes 10-karat gold? O…

A: 10 karat gold is an alloy . Alloy are the homogeneous mixture.

Q: Suppose there are four unknowns in bottles: three of the bottles are solutions and one is a pure…

A:

Q: On the molecular level, what does it mean for a solid sample to be pure?

A: Applying concept of pure solid / substance via molecular basis explanation.

Q: Is the ink inside of a pen a pure substance or a mixture? Explain your answer using scientific…

A: a pure substance is made up of only one type of molecule. But mixture is made up of more then one…

Q: Milk is homogeneous mixture and not a compound. Explain this statement.

A: Ans    Milk is a mixture made up of various compounds 1. fats, 2  sugars, 3. water  4. proteins,…

Q: how can matter be described in terms of its mass, volume, its particles and its taste?

A: Matter anything that occupies the space.

Q: Separating a mixture of two liquids into its components based on their boiling points is known as: •…

A: Every liquid has its unique boiling point, at which it converted to vapour,  based on this boiling…

Q: 21: The ocean (salt water) is an example of a/an mixture; heterogeneous mixture; homogeneous pure…

A: Mixture is formed by intermixing two or substances. Homogeneous means all components are present in…

Q: Which substances are molecular substances? water in glass ice in glass motor oil mineral spirits…

A: Here we have to determine the following materials which are molecular substances

Q: Which separation method is better suited for separating a solution of sugar and water into pure…

A:

Q: Bronze is an example of Homogeneous mixture ؟ true or false

A:

Q: Are the magnesium sulfate (MgSO4) and the sodium carbonate (NaCO3) still pure substances after you…

A: No,magnesium sulfate (MgSO4) and the sodium carbonate (Na2CO3) are not the pure substances after we…

Q: Homogeneous mixtures(

A: A. distilled water is a pure substance, not a homogeneous mixture. B. gasoline is homogeneous…

Q: 1. Are compounds and mixtures the same or different? Why? 2. If you had a substance and didn't know…

A: Hi, the answers to both the questions are given in the following steps.

Q: You strongly heat a tan-colored powdery solid directly on a hot plate in a vacuum chamber (so no air…

A: Since the unknown substance gives different colored substances, it is definitely not a pure element.

Q: This image represents a particulate view of a sample of matter. Classify the sample according to its…

A: In chemistry, the matter can be classified as pure substance or a mixture depending upon its…

Q: most of the materials around us are composed of mixtures of pure substances. What do you call a…

A: ANSWER : Mixture  A mixture is a physical blend of two or more components, each of which retains its…

Q: You are given a hammer, a battery, a bulb, wires and switch.(a) How could you use them to…

A:

Q: What is Heterogeneous substance? Give an example?

A: A mixture is a material made up of two or more different substances which are not chemically…

Q: Classify cach substance as a mixture or a pure substance. Mixture Pure substance Answer Bank argon…

A: The substances given are,

Q: Suppose a teaspoon of magnesium filings and a teaspoon of powdered sulfur are placed together in a…

A:

Q: What is the main difference between a pure substance and a mixture

A: Matter:  Matter can be define as anything that has a volume and a mass is called matter. Matter can…

Q: What is the difference between a mixture and a pure substance?

A: Matter can be defined as a substance that occupies mass and space. Matter can be divided into…

Q: Which is not an example of a homogenous mixture? a.) blood b) alcohol c.) milk d.) soda

A: Mixture in which proportion of the substances are uniform and can’t be visible from naked eye is…

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: How can you differentiate between natural and engineered nanoparticles in the environment?

A: The nanoparticles which occur in nature are called Natural Nano particles. These are generally found…

Q: What are the different techniques for separating mixtures?

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

Q: Read the descriptions below of two substances and an experiment on each. Decide whether the result…

A: Sample A The sample A is powder .   When distilled water is added one part is easily soluble and…

Q: Write a analysis about what is a mixture and what is not a mixture in Science.

A: A Mixture is basically the combination of two or more substances where there is no chemical…

Q: Seawater is composed of salt, sand, and water. Is seawater a heterogenous mixture or homogenous…

A: Concept is based on Seperation of matter.     As per our guideline we have to answer first question…

Q: The hydrogen peroxide you cleaned a cut finger with. is it a pure substance or mixture?

A: A pure substance is made up of only one substance. The constituent of pure substance has definite…

Q: What is Homogeneous substance? Give an example?

A: Homogenous substance or homogenous mixture is a phase in which we cannot differentiate the particles…

Q: What are the different ways of separating mixtures? A beaker contains a mixture of iron fillings,…

A: Step 1 : Magnetic separation : Iron is magnetic in nature and the others are not so using a magnet…

Q: You have two solid substances that looks the same. What measurements would you take and which tests…

A: The two solid substances can be differentiated by observing their physical properties. Physical…

Q: 1.23 Which separation method is better suited for separating asolution of sugar and water into pure…

A: We know that the given solution mixture that is solution of sugar and water  is a homogenous…

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.