Calcium chloride has a melting point of 775 °C and a boiling point of 1935 °C. In what state of matter would you find this substance at 1900. °C?

Q: Given the graph above, what is the correct boiling point for this substance? - 25 degrees Celsius 5…

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

Q: The boiling points of liquids A and B are 65 °C and 145°C, respectively. Which of these liquids…

A: Given: Boiling point of liquid A = 65 oC And the boiling point of liquid B = 145 oC

Q: H[(aд) + LiOH (ag)-> Express your answer as a chemical equation. Identify all of the phases in your…

A: Given a chemical reaction as following,HI(aq)+LiOH(aq)→we are asked to complete the above reaction.

Q: Water melts at 0°C. A student observes a liquid that melts at 10°C. Which conclusion can the student…

A: Melting point is the temperature at which a solid melts.  It depends on - Composition of molecule…

Q: List the following elements in order from lowest boiling point to highest lowest boiling point…

A: Boiling point of substance depends upon the primary forces as well as secondary forces present in…

Q: A pharmaceutical company develops a new drug and collects data about its phases. Given the following…

A: Given: At atmospheric pressure its melting point is 75°C and its boiling point is 157°C Its triple…

Q: A white substance melts at 70 degrees Celsius. As a solid or in aqueous form it does not conduct…

A: Solids are classified into two types: 1) Crystalline solids 2) Amorphous solids Crystalline solids…

Q: 36. Which of these substances has the highest boiling point? (Hint: You likely don't know the answer…

A: Types of intermolecular forces are, London dispersion forces Dipole–dipole interactions Ion–dipole…

Q: F. 150 135 120 105 90 75 C 60 45 30YA 15 Heat (kJ) Created by E. Lee for Virtual Virginia (2021)…

A: This curve is the example of heating curve. This is because in y direction temperature is increasing…

Q: Two different pure solids are melted, and one exhibits a melting point of 138 oC, while the other…

A: Compounds are formed from two or more elements. Compounds are characterized by different chemical…

Q: You have a solid mixture that contains potassium chloride and lead II sulfate, how would you…

A: Ionic solids are metal salts. They formed when metals form an ionic bond with non-metals. Ionic…

Q: What would be the possible application of determining the melting point of a substance?

A: Below attached file showing the details answer.  All the best.

Q: The heat of fusion of pure silicon is 43.4 kJ/mol. How much energy in kJ would be needed to melt a…

A: Given: The heat of fusion of Si, (∆Hfus) = 43.4 kJ/mol. The mass of Si, (m) = 9.29 g. The molar mass…

Q: . Aluminum melts at a temperature of 660°C and boils at2470°C, whereas thallium melts at a…

A: Given information,     Aluminum melts at a temperature of 660°C and boils at 2470°C, whereas…

Q: X 6. What state of matter is salt? * 0/1 Salt is a liquid because you can pour it Salt is a liquid…

A: Salt consists of cation and anion held by ionic bond Salt is formed when the hydrogen of an acid is…

Q: Which of the following pure substances has the lowest melting point? a. CSC1 b. CsF C. CSBR Od. CsĮ…

A: Melting point is defined as the temperature at which solid starts melting.It is the process at which…

Q: A sample of water at 23 degrees Celsius required an input of 1.69 times 10 to the fourth power J of…

A:

Q: The heat of fusion of pure silicon is 43.4 kJ/mol. How much energy in kj would be needed to melt a…

A:

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: Substances like hydrogen, which is a gas at room temperature and pressure, can often be liquified or…

A: To condense H2 ,temperature given is -252.9℃ To freeze H2 ,temperature given is -259.2℃ To find:…

Q: A student synthesizes a pure compound whose melting point is known to be 150 degrees Celsius. Which…

A: Melting point is the temperature at which the solid and liquid forms of a pure substance can exist…

Q: i) ii) Magnesium has Silicon has a very high melting tempé Sulphur has a higher melting temperature…

A: The question is based on periodic properties of the elements. We have to compare the melting point…

Q: If it takes you 10 min. to boil an egg to perfection at sea level, how long would it take to boil an…

A: Given that :  Time taken to boil an egg at sea level = 10 min We need to determine if the time…

Q: Using the heat of vaporization of benzene, 395 J/g, calculate the grams of benzene that will…

A: Given that heat of vaporization of benzene is 395 J/g and also given that 9.28 k J is removed at its…

Q: how many grams of table salt must be added to half a liter of water to raise its boiling point by 15…

A:

Q: 8. Mercury thermometers have been phased out because of the toxicity of mercury vapor. A common…

A: Boiling point of isoamyl benzoate = 2620C Temperature in Kelvin = Temperature in oC +273.15…

Q: Q.6: In given diagram, explain Tg and Tm for different materials? Liquid Glass Semicrystalline solid…

A: The given plots in the question clearly discusses about the phase change behaviour of several…

Q: Classify the following materials as crystalline or amorphous solids.1) Glass2) Sugar3) Quartz4) Wax

A: Given,1) Glass2) Sugar3) Quartz4) Wax

Q: ?Which of the following represent the current melting point and boiling point of water إختر أحد…

A: Current Melting point of water = To be determined Current Boiling point of water = To be determined

Q: A substance melts sharply at 135°C. Is it a pure compound?

A: Substances that melt sharply at a particular temperature are pure substances.  Substances melt at a…

Q: Some hypothetical metal has a simple cubic crystal structure. If its atomic weight is 68.73 g/mol…

A: r = 0.153nm In simple cubic, a=2r    a= 2×0.153     =0.306nm Or a= 3.06 × 10-8cm    a3 = 28.65 ×…

Q: The graph, at right, shows the temperature of a pure substance as it is heated at a constant rate in…

A: Given : the substance is being heated from solid to liquid to gas phase. Since the temperature v/s…

Q: (a) Neat diethylzinc, Et2Zn, is a liquid with a melting point of -28°C while EtZnBr, EtLi, and Et2Mg…

A: Diethyl zinc is a highly reactive liquid and is flammable in air or water. It should be handled in…

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: What phase of carbon dioxide exists at -120°C at 1 Atm? At 80°C and 100 Atm? Justify your answer.

A:

Q: A medicine tablet producer wants to get rid of the alcohol used during the process of compounding.…

A:

Q: A team of students is collecting measurements of the boiling point of a liquid. The team determines…

A: Accuracy is defined as the degree of closeness to the true value.

Q: 1.Prepare the following materials: ice cubes and a glass of water (half-filled). 2.Place an ice cube…

A: Firstly we prepared ice cubes and then placed the ice cubes in a glass half filled with water.…

Q: ubstances like oxygen , which is a gas at room temperature and pressure, can often be liquified or…

A: Given data= Substances like oxygen , which is a gas at room temperature and pressure, can often be…

Q: A student synthesizes a pure compound whose melting point is known to be 138 degrees Celsius. Which…

A: Melting point, the temperature at which the solid and liquid forms of a pure substance can exist in…

Q: Identify the place which has the lowest boiling point of water. A) Death Valley, 282 feet below sea…

A: Boiling point: Boiling point is defined as the temperature at which the vapour pressure of a liquid…

Q: Water in a well boils at 75°C at a certain depth in water. At what temperature in °C the water will…

A: We know that, Enthalpy of vaporisation of water = 40.5 kJ/mol Water boils at 75°C ( at some pressure…

Q: Pick a substance expected to have the lowest boiling point? O A. sodium nitrate, NANO3 B. diamond O…

A: Boiling point of a substance is the temperature at which vapour pressure of a liquid equals the…

Q: Supercooling  is:  a. a process in which liquid freezes at higher temperature than it's freezing…

A: Supercooling is sometimes also called undercooling. Supercooling is described as the process of…

Q: Pure acetic acid, which gives the sour taste to vinegar, has a melting point of 16.7 °C and a…

A: The temperature at which a solid change into a liquid state is known as the melting point. The…

Q: Liquid nitrogen has a boiling point of -195.81 ° C at atmospheric pressure. Express this temperature…

A: Since we know that 0 ℃  = 273.15 K  So to convert ℃ into K we will add 273.15 to ℃

Q: Liquid nitrogen has a boiling point of -195.81°C at atmospheric pressure.Express this temperature in…

A: