A white substance melts at 70 degrees Celsius. As a solid or in aqueous form it does not conduct electricity and can be easily crushed . What type of solid is this substance likely to be ? Justify your answer .

Q: Some hypothetical metal has simple cubic crystal structure. If its atomic weight is 75.81 g/mol and…

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Q: Diamond is a strong and hard material that does not conduct electricity. Verify this statement.

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Q: Which corresponds with the image attached?    A. Liquid B. Crystalline Solid C. Gas D.…

A: In the given diagram, the different Molecules move continuesly and get back to change their initial…

Q: 59.9 g of ice er)

A: Given data are as follows Enthalpy of fusion= 6.01 kJ/mol Temperature given= 0 oC wt of ice = 59.9 g…

Q: Chromium has a density of 7.19 g/cm3 and crystallizes in a body-centered cube. What is the atomic…

A: Given,Density of 7.19 g/cm3 The atomic weight of chromium is 51.9961 g/mol

Q: Gas is defined as O a. the form of matter that is easily compressible and will fit into a container…

A: There are three states of matter, solid, liquid, and gas. In the solid states, the intramolecular…

Q: Differentiate between solids and liquids in terms of the arrangement AND motion of the particles

A: Difference between solids and liquids on the basis of their arrangement and motion of the particles…

Q: 8. If matter is uniform throughout and cannot be separated into other substances by physical…

A: Matter is divided into two categories. 1. Homogenous  - The matter is uniform throughout  2.…

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 branch of chemistry would study the amount of mercury present in a soil sample? Explain.

A: Mercury  is  an  element  present  in periodic table.It has  atomic  number  of 80  and has…

Q: 1.12 The photo below shows a picture of an agate stone. Jack,who picked up the stone on the Lake…

A: Pure chemical substances that are made up of two or more chemical elements are known as chemical…

Q: At room temperature, 20° C, water ("2) is a liquid and nitrogen (2) is a gas. Which state- H,O ment…

A: The correct option is  B. The particles in both substance are able to flow because of week…

Q: Mixture of water and AMMONIUM CHLORIDE is an example of Homogeneous mixture

A: A mixture, whose composition is uniformly distributed throughout the mixture is said to be a…

Q: Some hypothetical metal has simple cubic crystal structure. If its atomic weight is 71.09 g/mol and…

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Q: Evidence of a chemical reactions is anything that shows... A.a change in the state of matter B.…

A: A new substance has formed. Option C

Q: 1. What state of matter is achieved if a large amount of energy is added to a solid? A liquid? A…

A: There are three states of matter namely, solid, liquid, and gas. The intermolecular forces of…

Q: 24. The graph to the right represents the uniform cooling of a substance, starting with the…

A: When we cool the gas, it converts into a liquid state. On further cooling the liquid converts into…

Q: Define the phases of matter and phase change?

A: The state of matter that is uniform throughout in physical state and chemical composition is known…

Q: Which involves changes in phase? O Cutting an apple O Water is freezing into ice O Baking Cookie O…

A: Phase: A homogeneous and distinct state in which all the physical and chemical properties are the…

Q: A process that may be applied to a mixture of two substances which sublime closely together *

A: Given statement is : A process that may be applied to a mixture of two substances which sublime…

Q: Observe granules of sugar, salt, and pepper under a magnifying glass. Can you see the difference…

A: The given materials are granules of sugar, salt, and pepper.

Q: Which phase of matter is the most ordered? O Solid O Gas O Liquid

A: There are three phases of a matter. By varying the temperature and pressure the phase of the matter…

Q: Nickel crystallizes in a face-centered cubic lattice and has a density of 8.90 g/cm³. What is its…

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Q: 1. What phase change is being observed when an ice turns to liquid? * a. Melting b. Evaporation c.…

A: Melting involve conversion of a solid to a liquid and sublimation involve conversion of a solid to a…

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: he phase change, thus, change in state of matter represented by the equation  I2 (s) →  I2 (g) can…

A: Chnaging of matter from one phase to another phase is called interconversion of matter

Q: Aluminum is a useful metal because it can be rolled into thin sheets and bend into different shapes.…

A: All the chemical elements can be broadly divided into metals, metalloids, and nonmetals according to…

Q: .The amount of energy involved in melting a substance without changing its temperature is called the…

A: We know that, A) heat of vaporization: it is the amount of energy require to convert liquid into…

Q: A match is lit and held under a cold piece of metal. The followingobservations are made: (a) The…

A: Physical changes are those in which change is physical appearance takes place like smell, heat etc.…

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: Explain the difference between a general mixture and an aqueous mixture.

A: Mixture is combination of two or more chemical substances which are not chemically combined.

Q: Give an example of nanoparticles found in animals and discuss it briefly.

A: Nanoparticles are minute particles ranging from 1 to 100 nanometers in size. Nanoparticles exhibit…

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: Testing of a sample of matter shows that it has a single melting point of 1,453°C and a single…

A: The melting point of sample matter is = 1453oC ( single melting point and value is too high) The…

Q: Gasoline is composed of a variety of different liquid hydrocarbons, which do not separate as time…

A: Gasoline is composed of a variety of different liquid hydrocarbons. These hydrocarbon does not…

Q: We heated a small amount of water, to a boil, in an aluminum can. We then set it in a cold ice water…

A: Given question is based on our conceptual clarity, because question is asking about the reason…

Q: Why is arrangement of the constituent atoms or molecules are important in determining the properties…

A: The arrangement of the atoms or molecules is more important in determining the properties.

Q: Calculate the Molar mass of a volatile liquid (g/mol) from the following data:- Mass of dry flask,…

A: Mass of dry flask = 142.722g Mass of vapor = 143.801 Volume = 1.127 liter Temperature of degree…

Q: What is the boiling point in Kelvin?

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Q: wo pans of water are on different burners of a stove. One pan of water is poiling vigorously, while…

A: ANSWERE IS DISCUSSED BELOW :

Q: Ice naturally floats on water due to its lower density. If ice did not float on top of water,…

A: if ice did not float life underwater would be impossible it stays on the top and ice slowly gets…

Q: SOLID LIQUID GAS DEFINITE SHAPE AND VOLUME AVERAGE LEVEL OF KINETIC ENERGY MOLECULES ARE IN…

A: We have to tell the properties of solid, liquid and gas substances.

Q: At certain pressures, ClF forms a solid that sublimes when heated. Using a few words  and a simple…

A: Subliming is an endothermic phase transition in which a solid turns directly into a gas without…

Q: During the production of pure iron, limestone and coke are used. What are their purposes? (Inorganic…

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Q: Ice naturally floats on water due to its low density. If ice did not float on top of water, describe…

A: It is known that ice floats on water. The reason for this is "the volume occupied by specific amount…

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…

Q: Given the following combinations:   a. a homogeneous liquid mixture of bromine, Br2, and carbon…

A: The question says Which of the pairs is an undissolved mixture of two compounds? Undissolved mixture…