The temperature remains constant as energy is added to a substance. How may the substance be changing

Q: Molecules are closest together in a state. Select one: O Solid Plasma Gas O Liquid

A: The matter are classified into state depending on intermolecular force of attraction between them.In…

Q: Sarin is a nerve gas that was previously used as a chemical weapon. Considering the physical…

A: The substance exists as solid or liquid or gas as per the below condition 1) If the temperature is…

Q: When a substance changes from solid to liquid form, the bonds between the particles become stronger.…

A: State change is the physical change .

Q: What are solid substances?

A: Given,  solid substances

Q: Please answer the ff questions and clear your answer. a. Why are most atoms held by chemical bonds.…

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Q: K2SO4(aq)+BaCl2(aq)⟶KCl(aq)+BaSO4(s)K2SO4(aq)+BaCl2(aq)⟶KCl(aq)+BaSO4(s) Express your answer as a…

A: Given equation  K2SO4(aq)+BaCl2(aq)⟶KCl(aq)+BaSO4(s)

Q: Why are some substances gases, some liquids, and others solids?

A: Matter : Matter is anything which occupies space and it has mass. A phase is that form of matter…

Q: A pure crystalline "compound A" has a melting point 105-107 °C. If this compound i mixed with a…

A: Melting point is the temperature at which  solid changes its state to liquid at atmospheric pressure…

Q: What was the observation that Fritz London made that led him to believe that all neutral atoms and…

A: Fritz London contributed a theory on the bonding of the molecules, known as London dispersion…

Q: Explain the process of phase changes in matter.

A: Things around us which has mass and occupy space are called matter. Matter exists in three different…

Q: What happens to a snowflake when it is put in the freezer? does it melt or does it become glass ice?…

A: Solution - According to the question - Given - snowflake icon represents the number 1 or the least…

Q: Solubility of Liquids in Liquids Pour 5 mL of rubbing alcohol into an equal volume of water and…

A: Given liquids: Water: H2O Alcohol: R-OH In this activity,  1. 5 mL of alcohol is added to 5 mL…

Q: What does the line separating the solid phase from the gas phase represent?

A: Phase diagram  as shown in question is used to identify the physical state of a sample of water…

Q: what is barye unit ? What is its definition?

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: Does the diagram best describe a crystalline solid, a liquid, or a gas? Explain.

A: Crystalline solid Liquid Has We have to analyze those substances to answer the following question.

Q: a) Rank the three common states of matter in order from least ordered to most ordered. b) How is…

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Q: Molecules are closest together in a state. Select one: O Plasma O Solid O Liquid O Gas

A: Molecules are closest together in a solid state.

Q: Melting point can be defined as the temperature when a solid becomes a liquid. The melting point of…

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter,…

Q: 70. This process is called , O sublimation process recrystallization process O decolorization…

A: Since cooling takes place ans crystallization occurs.  Hence  the process is recrystallizatiion  So…

Q: What does the line separating the liquid phase from the gas phase represent?

A: The phase diagrams are used to calculate the state of the matter. There are three phases i.e.,…

Q: What happens in the gray zone between solid and liquid?

A: When solid transforms into liquid or liquid transforms into solid, in the midway of both the…

Q: 1. Boiling point of the liquid is the temperature at which the liquid starts to change into a steam.…

A: We have to tell whether the given statements are true or false.

Q: initial mass of unknown solid 24.193 g volume of solid length of solid 1.8 cm width of solid 1.4…

A: Volume and density of the solid determined in cm3 and g/cm3 unit respectively.

Q: This means the resulting mixture looks like a ____________liquid no matter how much ethanol or water…

A: Alcohol and water both are polar molecules. And like dissolves like that is polar liquids are…

Q: How do we know we are observing the beginning of the melting point range? First drop of liquid is…

A: Melting point means the temperature when a solid converts into liquid.

Q: Explain the properties of solids and liquids using the kinetic energy molecular theory.

A: The kinetic energy molecular theory state that if the space between the molecules is more then they…

Q: A student heated a few crystals of copper sulphate n a dry boiling tube.(a) What will be the color…

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Q: Create a model of the atoms of a substance moving through the solid, liquid, and gas states. Be sure…

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Q: Which change happens when a substance melts? O Heat energy overcomes the forces of attraction…

A: Here we have to choose correct option about melting of substances-

Q: ansition between liquid and gas, line f depicts the transition between solid and liquid

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Q: A student synthesizes an impure compound whose melting point is known to be 143 degrees Celsius.…

A: Melting point of a substance is considered at that temperature at which a solid melts.

Q: Which change happens when a substance melts? O The molecules of the substance move farther apart,…

A: The correct option is as follows:

Q: How does pressure affect temperature and the state of matter? Describe the relationship between…

A: Pressure raises the temperature at which a given type of matter changes states, such as going from…

Q: Condensation occurs when liquid phase of a substance is converted to its gaseous phase…

A: Condensation is associated with release in thermal energy and so it's an exothermic process.

Q: Ice melts to form liquid water Describe this physical change in terms of the arrangement of the…

A: Solid to liquid transformation is a physical change as we are adding some energy. This process is…

Q: Solid matter is made up of particles that are moving faster then the particle that make up Liquids.…

A: Solid state is a state of matter in which the inter molecular force of attraction is very strong due…

Q: If the students kept applying energy to the water after it begins to boil, what is most likely to…

A: Water is in liquid state at room temperature means at  25 degree Celsius. State it may be solid…

Q: You have two objects that are made of materials that have the same chemical composition, but…

A: As each and every material is made up of small particles. The internal ordered arrangement of these…

Q: How to define appearance of substance?

A: The physical appearance of a substance is its colour, size, shape, boiling point, melting point,…

Q: How do we know we are observing the end of the melting point range? First drop of liquid is…

A: The melting point range can be defined as follows:

Q: Which phase has a fixed shape? O Solid Gas O Liquid

A: Solid: The atoms/molecules or the constituent are closely packed together and they are not free to…

Q: Are the melting temperature and freezing temperature the same for a pure substance? Why is that?

A: Melting point is the temperature at which solid substance start to convert into liquid. Example:…

Q: What theory explains the unique properties of water, such as why ice is less dense than liquid water…

A: Water is a necessary part of life. It is in the liquid state at room temperature due to its specific…

Q: Ion attractions suonaemp enul-a 7. The Kinetic Molecular Theory states that the temperature of a…

A: We have given with statements and have to tell which one is correct option.

Q: 09G sample of water at boiling point 100 Celsius is boiled completely how much energy was added to…

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Q: 1. Why is metallic crystalline solid a good conductor of electricity? A. Atoms are packed close…

A: All matter can be classified as solid, liquid and gases mainly. In these physical states of matter,…

Q: There are five pure substances. The molecular component is shown per substance. Based on this…

A:

Q: describe the types of substance present in coke float (soda with ice cream) list down 5 substances…

A: Coke float is soda with ice cream. Contain ice-cream either in soft drink or in carbonated water…

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.