There are three sets of sketches below, showing the same pure molecular compound (ammonia, molecular formula NH3) at three different temperatures. The sketches are drawn as if a sample of ammonia were under a microscope so powerful that individual atoms could be seen. Only one sketch in each set is correct. Use the slider to choose the correct sketch in each set. You may need the following information: melting point of NH3: -77.7 °C boiling point of NH3: -33.3 °C A (Choose one) 1 ² 3 4 -54. °C 5 B (Choose one) (Choose one) -94. °℃ C 5 1 ² 3 4 29. °C

Q: pure solid sample of Substance X is put into an evacuated flask. The flask is heated at a steady…

A: The solid substance, X, changes to liquid first and then the liquid changes its phase to gas as the…

Q: g of potassium chloride (KCI) dissolved in 350. mL of water g of calcium chloride (CaCl₂) dissolved…

A: Colligative properties :Colligative properties are the properties that are depends on the number of…

Q: Which has the lowest normal boiling point? N2 NaCl Hg

A: Normal boiling point is the temperature at which a liquid boils at 1 atmosphere of pressure.…

Q: Explain the triple point of water

A: Phase diagram represents conversion of one phase into another phase at different temperature and…

Q: litrogen gas is used in place of CO2 gas for some bubbly beverages such as beer and coffee. low many…

A: We have to predict the amount of heat required.

Q: Four liquids are described in the table below. Use the second column of the table to explain the…

A: “Hello. Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: The molar heats of fusion and sublimation of lead are 4.77 and 182.8 kJ/mol, respectively. Estimate…

A: Given Data: The heat of fusion is 4.77 kJ/mol. The heat of sublimation is 182.8 kJ/mol.

Q: Four liquids are described in the table below. Use the second column of the table to explain the…

A: The objective of this question is to explain the order of boiling point and the order of freezing…

Q: solution 4.7 g of glucose (C6H1206) dissolved in 150. mL of water 4.7 g of potassium acetate…

A:

Q: The following information is given for cadmium, Cd, at 1 atm: Boiling point = 765.0°C   Heat of…

A: Given that: Heat of fusion = 13.0 cal/g mass of sample =  27.5 g  To find: Energy removed in…

Q: Four liquids are described in the table below. Use the second column of the table to explain the…

A: We have been asked the order of freezing point and boiling point of different solutions

Q: For each pair, predict which one will have the higher value for vapor pressure when it is in the…

A: We know that, vapour pressure of the compound is Inversly proportional to boiling point.  That…

Q: There are three sets of sketches below, showing the same pure molecular compound (water, molecular…

A: Given Molecule: H2OMelting point of H2O:  0.0 oCBoiling point of H2O : 100 oCGiven temperature…

Q: Four liquids are described in the table below. Use the second column of the table to explain the…

A: Depression or lowering in freezing point and elevation in boiling point are the colligative…

Q: A sample of C3H4Br2 has a normal boiling temperature of 131.5 °C. The enthalpy of vaporization for…

A: GivenEnthalpy of vaporization = 35.4 KJ/molNormal boiling temperature = 131.5oC Calculate the…

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.