Air is homogeneous because * A: there is not blue air nor red air. B: it is a gas. C: the composition is uniform throughout all of it

Q: The width, length and height of a large crate are as follows: 1.22 m, 3.22 m and 0.83 m.,…

A: Given is, The width, length and height of a large crate are as follows: 1.22 m, 3.22 m and 0.83 m.

Q: All of these are examples of physical properties except: A. Color Change B. Density C.…

A:

Q: A. MELTING ICE B. BURNING MATCH C. SAND AND SALT MIXING E. WATER FROM F. STEAM D. MILK GOING SOUR…

A:

Q: What advantages do SI units have over the units commonly used in the United States? Are there any…

A: Units for measurements are really helpful to recoganize and differentiate them worldwide. There are…

Q: Enumerate the laws of matter and define each.

A:

Q: The space between particles within a substance depends on the state of the matter. Which list ranks…

A: generally compounds exist in 3 states Solids Liquids Gas

Q: Describe how a homogeneous mixture differs from a heterogeneous mixture.

A: The homogenous mixture is a mixture which has only one phase(means of homo) is present or there can…

Q: What is the definition of matter

A: What is the definition of matter

Q: 1. What is a unit?

A: A unit of measurement is some specific quantity that has been chosen as the standard against which…

Q: If it can be chemically decomposed, what type of matter is that substance? D. Heterogeneous A.…

A:

Q: property? Extensive properties defin quantity. Intensive properties define unique characteristics…

A: 16-B 17-B 18-I

Q: The SI Unit of density?

A: Interpretation-  To write the SI unit of density -    Introduction-  Density basically measured by…

Q: 1. In a change, one kind of matter is turned into another.

A: The answer to the following question is--

Q: A student performed an experiment to determine the percent water in a sample of food and collected…

A: Given: Mass of empty watch glass = 43.5245 g Mass of watch glass and undried food = 50.6270 g Mass…

Q: (a) Under one set of conditions, the substances in A and B mix, and the result is depicted in C.…

A: To find: Whether the following changes are physical or chemical.

Q: Question 4

A: Compound is defined as a chemical species in which two or more elements are bonded together through…

Q: Compare and contrast the three major phases of matter.

A: The three major phases of matter are Solid, Liquid, and Gas.   Solid =  The particles are tightly…

Q: Relate the properties of matter to its composition?

A: Matter is anything that has mass and volume. All matter comprises of atoms. The characteristics…

Q: Mass is the measure of what property of matter?

A: Properties of matter are mainly two types such as physical properties of matter and chemical…

Q: State whether the following properties of matter are physical or chemical. a. An iron nail is…

A: The change of one type of matter into another type (or the inability to change) is a chemical…

Q: What Is Derived units?

A: A derived unit is a unit that results from a mathematical combination of SI base units.

Q: PART 2 Density of Gravel 0010 The mass of the empty weighing boat was measured. Then the weighing…

A: Density of a substance is defined as mass per unit volume. It is denoted as d or ρ. S.I unit of…

Q: What is meant by the phrase characteristic properties of matter?

A: To define this phrase , we would first define matter and then we would see what is meant by…

Q: Graphite and diamond are both made of pure carbon. Graphite has a density of 2.266 -3 g cm and…

A: Density is a physical property. It is the mass of substance present in unit volume of that…

Q: Question 3

A: The intermolecular distances between the gas particles are greater. Gas has no definite shape or…

Q: Describe solids, liquids, and gases in terms of (a) volume (how they fi ll a closed container); (b)…

A: Since you have posted multiple sub-parts, the answer for first three sub-parts are given below.…

Q: In _________ __________ the components separate into distinct regions.

A: Concept is based on separation of mixture

Q: Classification and Properties of Matter(Sections 1.2 and 1.3)1.13 Classify each of the following as…

A: The following compounds have to classified as a pure substance or mixture.

Q: If matter is uniform throughout and cannot be separated into other substances by physical processes,…

A: A physical process is defined as the process in which physical state of matter takes place. Like, in…

Q: 1. Which refers to the motion of charges from one place to another? b. Electricity 2. Which of the…

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Q: This question has two parts Part One: A scientist conducts a few experiments in her lab and comes up…

A: A hypothesis is an assumption, an idea that is proposed for the sake of argument so that it can be…

Q: Two beakers contain clear, colorless liquids. When the contentsof the beakers are mixed a white…

A: Chemical change- The change in which chemical reactions are happened called as chemical change. e.g.…

Q: 22) The scientific method involves various techniques which allow researchers to investigate…

A: Experimentation is the process  of doing an experiment.  Observations is the process of following…

Q: What is the difference between a heterogeneous and a homogeneous material?

A: Homogeneous and heterogeneous material are two classes of materials which differ in their…

Q: Is the density of a gaseous substance likely to be larger or smaller than the density of a liquid or…

A:

Q: Describe the difference between a theory and a scientific law.

A: We usually come across different theories in the course of study and the scientific laws as well.…

Q: 16 The best example of an element is – F oil G ice H water J oxygen 17 Which of the following…

A: Element : The element is made up of only one type of  atoms . The element Can't be broken into any…

Q: Which describes a substance that is in the solid state?A. Its particles can flow past one another.B.…

A: The options which describes the substance that is in the solid state has to be given,

Q: 1 You cut a piece of paper into small pieces. Is this o physical or chemical change? Explain your…

A:

Q: The physical state in which matter is not hard to compress is: A) solid B) liquid C) gas D) both…

A: There are three main physical states of matter  - solid , liquid and gas.  (1) Solid state has…

Q: Determine if the following mixtures are homogeneous or heterogeneous. Explain why they are…

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Q: A bottle of sports drink is homogeneous or heterogenous ? B) well water is a pure substance of a…

A: A mixture is defined as a material made up of two or more different substances that are not…

Q: Three liquid substances of the same mass and have an S.G. of 1.20, 0.835 and 1.0 were being mixed to…

A: Given data Specific gravity (S.G.) of three substance are Substance Specific gravity A 1.20 B…

Q: balloon is the same as the air pressure outside the balloon. Suppose we next heat the air inside the…

A: When the temperature rises, the volume of the balloon increases. An increase in volume leads to a…

Q: Process of matter changing from a gas to a liquid or solid. a. absolute zero b. boiling point c.…

A: INTRODUCTION: a.)absolute Zero- The minimum temperature (that can be theoretically achieved), at…

Q: Matter that has a uniform and unchanging composition is know as a... a. compound b.mixture c.…

A: We can separate everything we see into two different parts:- Substances and Mixtures Substance is…

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.