What makes ice melt? Select the correct response: When the particles move very far apart, they gain energy. When the particles gain energy, they begin to move. When the particles come close together, they lose energy. When the particles lose energy, they begin to move.

Q: Calculate the amount of heat needed to melt 45.0 g of solid hexane (C,H,) and bring it to a…

A: Consider the given information is as follows; Initial Temperature (melting point of hexane) = T1 =…

Q: How much heat is necessary to melt 12.8 g of solid gold? The heat of fusion of gold is 15.3 cal/g.

A: Given,mass of the solid gold = 12.8 gThe heat of fusion of gold = 15.3 cal/g

Q: How much heat is emitted when 4.25  g  of water condenses at 25  ∘C ? The heat of vaporization of…

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Q: Given that a 10.0 g sample of ice at 0.0 °C melts and then the resultant water proceeds to warm to…

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Q: The mountain point of ice is 0.00°C. Calculate the amount of heat needed to melt 12.754 g of ice at…

A: Concept q=n×ΔH where:q = heat (kJ)n = molesΔH = enthalpy of fusion (kJ/Mol)  or q= m ×ΔH  where  q=…

Q: 7. Calculate the heat needed at 0°C to make each of the following changes of state. Indicate whether…

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Q: Which portion of this heating curve for water should have the least steep slope?

A: Heat capacity is defined as the amount of heat required to raise the temperature by 1 degree…

Q: d 10 The processes of melting and evaporation involve changes in the of a substance.

A: Melting is the change to solid to liquid at its melting point.  Evaporation is the change of liquid…

Q: How many kilojoules of heat energy are required to melt 200. g of ice at its freezing point?

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Q: 22. When a solid melts, the kinetic energy inside the substance increases, which is why it turns to…

A: The solid particles can not show transnational motion, because the particles are tightly packed in…

Q: Calculate the energy absorbed/released, in kJ, when 12.72 g of liquid water is turned to ice. Be…

A: In liquid state water molecules have less intermolecular forces of attraction compare to solid.

Q: Which would you expect to have the highest melting point? 1. diamond (C) 2.iodine (I2) 3. lime…

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Q: The heat of fusion of water is 79.9 Cal/G. How much heat would be required to melt 75.9 G of ice?

A: Given: Mass of ice, m =75.9  g The heat of fusion of water =79.9 Cal/g

Q: When liquids change to a solid state, they   Question 5 options:   absorb energy.   release energy.…

A: When liquids change to a solid state, they...release or absorb the energy answer is given below with…

Q: The heat of fusion of water is 79.9 cal/g. How much heat would be required to melt 94.8 g of ice?

A: Step 1:

Q: How much heat is required to melt 37.6 g of ice at (0∘C)? The heat of fusion for water is 6.02…

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Q: A 7.0 g ice cube is placed into 230 g if water. Calculate the temperature change in the water upon…

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Q: 4.What is the name of a phase change between a solid to a liquid?  a freezing  b evaporation  c…

A: melting  Option "d" is correct.

Q: If ice was added to 25.732 g of water at 18.8°C. The water temperature dropped to 12.2°C after all…

A: Given: Mass of water =25.732g Initial temperature of water =18.8°C Final temperature of water…

Q: Ice actually has negative caloric content. How much energy, in each of the following units, does…

A: The objective of this question is to calculate the amount of energy your body loses when you eat and…

Q: 4.  Match the following physical change with the correct phase transition label.   Question…

A: The objective of the question is to match the given physical changes with the correct phase…

Q: How much heat is needed to melt 10.0 grams of ice at -10°C until it is water at 10°C?

A: Given, mass of ice = 10.0 g Initial temperature (Ti) = -10°C Final temperature (Tf) = 10°C Amount of…

Q: How much heat is necessary to melt 12.8 g of solid gold? The heat of fusion of gold is 15.3 cal/g.

A: The objective of the question is to calculate the amount of heat required to melt 12.8 g of solid…

Q: 150 100- D 50- -50 Time The heating curve shown above shows what happens as heat is added to a piece…

A: The heating curve describes the change in phase of a compound with respect to heat given to the…

Q: What type of phase change is water in the liquid state turning into water in the solid state?…

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Q: To melt a sample of ice cubes at 0 °C, the cubes must absorb 41.8 kJ of heat. What is the mass, in…

A: Given: Heat absorbed by ice = 41.8 kJ = 41.8×103 J (since 1 kJ = 103 J) Heat of fusion of water =…

Q: How much energy is needed to convert 53.9 grams of ice at 0.00°C to water at 52.9°C? _______ J…

A: Given:      specific heat (ice) = 2.10 J/g°C     specific heat (water) = 4.18 J/g°C     heat of…

Q: How much heat energy is needed to melt 750.0 grams of ice. it needs to be in kj

A: We have to calculate how much heat  energy  is needed to melt 750 grams of ice.

Q: Find a molecule (something with covalent bonds) and determine its melting and boiling point.  Draw…

A: A molecule with covalent bonds and melting and boiling point has to be given. The lewis structure of…

Q: How many kilojoules of heat energy are absorbed by a 200. g block of ice from -10 C to 0 C?

A: Solution-  Given Temperature-  00C to - 100C heat energy are absorbed by block of ice =200. g…

Q: How much heat (in calories) is absorbed when a 2.60 kg block of ice melts into a liquid? For water,…

A: Given: The mass of ice block, (m) =  2.60 Kg = 2600 g. The ∆Hfus for water=80 cal/g.

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.