mperatures. The sketches are drawn as if a sample of hydrogen chloride were under a microscope so powerful that individual atoms could be seen. Only on ketch in each set is correct. se the slider to choose the correct sketch in each set. You may need the following information: melting point of HCl: -114.8 °C boiling point of HC1: -85.1 °C A B C (Choose one) (Choose one) (Choose one)

Q: Which has the highest melting point? CH3OH, CCl4. CH3Cl, KCl, or BCl3

A: The melting point of compound depends on the molecular composition, molecular attraction and the…

Q: The AHfus of gold is 12.55 kJ-mol1, and its ASfus is 9.384 J-mol1.K-. What is the melting point of…

A: The term enthalpy of fusion for a given substance can be defined as the change in enthalpy which is…

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

A: To determine the type of sketch at given 4 , we use given melting and boiling point.  From this we…

Q: Ft C V osoft Use the observation in the first column to answer the question in the second column.…

A: If the enthalpy of vaporisation is higher of a substance then its boiling point is also higher . In…

Q: 9. Which of the following statements about water is not correct? It is c̟mposed of polar molecules…

A: Water has a very strong hydrogen bonding. Hydrogen when forms a bond with most electronegative atom…

Q: H H H H H H H H H H. H. H H H H H.

A: Given compounds are :  Which of the following chemicals would have a higher vapor pressure = ?

Q: Which statement best describes the structure of water and its nature as a solvent? O The water…

A: From solubility rule i.e like dissolve like principle we can solve this problem.

Q: Draw a heating curve when octane, a component of gasoline, is warmed from -70 °C to 130 °C. It has a…

A:

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

A: We use the formulas below to find elevation in boiling point(∆Tb) and depression in freezing…

Q: A yellow substance has a melting point at 150 degree celcius. It does not conduct electricity in…

A: Step 1: Consider given characteristics> melting point = 150 degrees Celsius> conductivity =…

Q: Oil and water? What force is primarily responsible for the fact that oil and water do not mix…

A: Water is a transparent, tasteless, odorless, and colorless liquid. In water, there are two atoms of…

Q: Calculate the final temperature of a mixture of 180.0 g of ice initially at -13.00 °C and 355.0 g of…

A:

Q: Between HI and HF, which has the higher boiling point and why O A. HF, because HF has hydrogen…

A: Between HF and HI , which has higher boiling point:

Q: Which has the lowest boiling point? AsH3, PH3, or NH3

A: Boiling Point of Nitrogen Family increases on moving down the group due to hydrogen bonding. It is a…

Q: 5. Is the melting temperature of a substance different from its freezing temperature? Define the…

A: The melting point of a substance is same as that of its freezing point. At this particular…

Q: What takes more energy: raising water to its boiling point, or making it become water vapor? Why…

A: Water can exist in 3 phases that is (solid-ice) ,(water-liquid) and gas as vapour. When water…

Q: A sample of gas collected over water at 42 degrees Celsius occupies a volume of one liter. The wet…

A: The expression of ideal gas equation is shown below: PV = nRT Where; P = pressure V = volume n =…

Q: Use the observation in the first column to answer the question in the second column. observation At…

A:

Q: The boiling point of 500.0L of water was determined to be 100.0°C. Ana has decided to increase the…

A:

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: a. Predict which of the following substances would have the lowest freezing point. H₂CO CH3 CH3…

A: Freezing point is the temperature of a liquid at which it changes its state from liquid to solid at…

Q: How is the AHtusion used to calculate the energy released when a volume of liquid freezes? A. Liters…

A: Soln option B is correct

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.