Describing the relationship between the melting time for an ice cube and amount of salt sprinkled on the cube by writing about it or by constructing a graph, is an example of

Q: List the names of the various changes of state for a pure substance?

A: Pure substances in chemistry are those that consist of only one kind of particles. It can be further…

Q: In the table below, use your most important scientific instrument (your calculator) to fill in the…

A: Since you have asked a question with multiple sub-parts we will solve first three sub-parts for you.…

Q: Which of the following is a pure substance existing as different phases in a heterogeneous system?…

A: The correct option is as follows:

Q: You were asked to separate sand and sodium chloride in water. choose three methods to separate the…

A: Physical separation (picking out pieces or utilizing density to shake sand to the top), dissolving…

Q: Describing the relationship between the melting time for an ice cube and amount of salt sprinkled on…

A: The freezing point depression is the one that results in lowering of freezing point of the pure…

Q: Nanotechnology, the field of building ultrasmall structures one atom at a time, has progressed in…

A: Hello. Since the question has multiple subparts, the first three subparts are solved. In case the…

Q: please write together with its units.

A:

Q: 19. You are trading blueberries for cherries. Using an exact relationship of 1 cherry = 4…

A: Given :  1 cherry = 4 blueberries.

Q: What kind of system is the coffee held in a cup?

A: In thermodynamics, three types of systems have been described namely open system, closed system and…

Q: how would you seperate a homogeneous solution of table salt and water into its components?

A: Evaporation: It is the process, which involves transformation of liquid water to water vapour.

Q: You are a high school chemistry teacher. Describe to your students the purpose of calculating a Q…

A: Interpretation -  To describe your students the purpose of Q value and demonstrate an example -…

Q: Clearly explain how you could use the displacement method to determine the density of an irregular…

A:

Q: While creating a piece of art work, a student becomes curious about the ink he is using to create…

A: The ink is a homogenous mixture, as it appears to be uniform throughout.

Q: classify whether it is greater than, less than, or equal

A: Since you have posted multiple questions, the answer for first question is given below. Kindly…

Q: use table attached to interpolate the density of water at 24.35 celsius

A: 24.35 oC lies in between 24.00 oC and 25.00 oC Density at 24.00 oC = 0.99730  g/mL Density at 25.00…

Q: When determining the density of a pure liquid or a solution, the temperture of the sample must be…

A: The volume of liquids will increase with increase in temperature.

Q: Write a informative essay about separation of mixtures in Chemistry.

A: Answer - A separation process is a method that converts a mixture or solution of chemical substances…

Q: How much time (in minutes) is required to depos

A:

Q: Compare the compressibility of solids and liquids. Support your answer by describing the arrangement…

A: To compare the compressibility of solids and liquids.

Q: decide if the given statement is true or false,and give a brief justification for your answer.If…

A: Given statement,    In the metric system, the concentration of chemical in a tank of solution is…

Q: Think about what you already know about different phases of matter. Given this figure showing the…

A: Matter exists in three states such as solid, liquid, and gas.  The conversion of one state to…

Q: How do I find the original water level in a beaker, when I’m given the mass of a metal (grams)…

A: Calculate the volume of the given metal by using the relationship between mass and density,

Q: olecule in units

A: Dear student I have given answer to your question in the image format.

Q: In an experiment aqueous solutions of calcium chloride and sodium sulfate are mixed. What type of…

A: Aqueous solutions of calcium chloride and sodium sulfate are mixed.

Q: an endothermic phase

A:

Q: Write a balanced equation for the combustion of gaseous methane (CH,), a majority component of…

A: A chemical equation is the simplest and easiest way to write the chemical formula of each of the…

Q: What happens to the gravitational force between two objects if the distance between them increases?…

A: Gravitational force is the universal force of attraction acting between all matters.

Q: This particle diagram is an example of a A)Pure substance B)Mixture Picture in Images

A: A pure substance contains only one kind of particle. A mixture contains many types of particles…

Q: Which of the following is a physical change?   a. Ice melting into liquid water   b. Sodium…

A: Physical changes are changes affecting the form of a chemical substance, but not its chemical…

Q: When heated, solid copper(II) carbonate decomposes to solid copper(II) oxide and carbon dioxide gas.…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: Particles of solid liquid gas -Energy and movement of particles in solid liquid gas -Spaces between…

A: States of matter.

Q: Is gas escaping from an opened soft drink anexample of a chemical or a physical change? Explain.

A: In physical change there are no new substance created. Easy physical techniques may be used to…

Q: The following particulate-level diagram best represents a(n).

A: We are given a particulate-level diagram as follows:

Q: Rank from fastest to slowest. To rank items as equivalent, overlap them

A:

Q: Two beakers contain clear colorless liquids, when the contents of the beakers are mixed,a white…

A: Physical change impacts only physical properties such as shape, size, melting point, and boiling…

Q: You place a thermometer in a beaker of DI water and obtain the following result. What is the density…

A: Given: Temperature of pure water or DI water = 17.4 oC

Q: Some farmers use ammonia, NH3 as a fertilizer. This ammonia is stored in liquid form. Use the…

A: As a fertiliser, some farmers utilise ammonia(NH3).  This ammonia is kept in a liquid form.

Q: The coldest weather temperature ever officially recorded in Reno, Nevada is -17 degrees which…

A:

Q: a) Define melting point. b) Is melting point a physical or chemical property of matter?

A:

Q: When large pieces of a purple-black crystalline solid are gently heated, a purple vapor is formed…

A: Solution : Change is defined as the process that shows the change in state, shape, color, shape,…

Q: Mixture of water and POTASSIUM CARBONATE is an example of Homogeneous mixture

A: Given, Mixture of water and potassium carbonate.

Q: Part A When iron rusts, solid iron reacts with gaseous oxygen to form solid iron(lII) oxide. Enter a…

A: The balanced chemical reaction has to be given.

Q: It is observed that oil floats on top of water. What physical property accounts for this observation

A: Given : oil floats on top of water

Q: A homogeneous mixture is made by dissolving 9.98 grams of solid potassium nitrate in 1000 g of…

A: We’ll answer the first question since exact one was not specified. Please resubmit a question and…

Q: the normality

A:

Q: How many joules of heat are required to change 563 grams of solid ice with a temperature of 260…

A:

Q: A change of kinetic energy of molecules create what property change in a body?

A: A question based on kinetic energy of molecules, which is to be accomplished.

Q: These quantity-dependent properties such as boiling point and freezing point are collectively called

A: The objective of the question is to tick the correct answer to the given alternatives.

Q: What are the possible errors in using gravimetric method to determine the mass of total solids in…

A: Solution: In gravimetric analysis method there are two major errors viz personal errors and methodic…

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.