Direction: Provide an explanation for the phenomenon Based on the kinetic molecular model, solids usually have higher densities compared to liquids. However, ice, a solid form of H2O floats on liquid water which means ice is less dense than water. What do you think is the reason for this phenomenon? What is the biological significance of this concept?

Q: Arrange the following substances in order of increasing total intermolecular forces between their…

A:

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

A: Given,density of water = 1.00 g/mL               solution      freezing point  boiling point4.8 g of…

Q: Which of the following properties of substances is TRUE? Select one: O a. Mgo has a higher vapor…

A: Kindly get the answer given below.

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

A: 2Matter generally exists in three states.These are solid, liquid and gas.The melting point is the…

Q: ce floats on water. For most other substances, however, the solid sinks in the liquid. Classify each…

A: Density is defined as the mass per unit volume. It is represented by rho ρ. It’s relation with mass…

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

A:

Q: Boiling Point (deg Celcius) 150 100 50 -50 -100 H20 H2S H2Se H2TE + Boiling Point (deg Celcius) 100…

A: For the hydrides of group-16 elements are expected to be increase in the boiling point on goint from…

Q: Determine the electronegativity difference and the molecular polarity (P for polar and NP for…

A: If electronegativity is above 0.7 then the compound will be polar while if the difference is below…

Q: estion 1 When a narrow diameter glass tube is inserted into a body of water, water rises in the tube…

A: 1. The force of attraction between water and water glass ,i.e the force of adhesion of water on the…

Q: 1. In the Dumas Method for the determination of the molar mass of a vapor, the computed percentage…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Explain hydrogen bonding and how it contributes to the unique properties of water such a surface…

A:

Q: Based on what you have studied about intermolecular forces, predict which of the following liquid…

A: Boiling point is the temperature required to break the bond of molecule

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: eir boiling points. le, select '1' in the second column next to the liquid with the lowest freezing…

A: The question is based on the concept of freezing point depression. we use the freezing point…

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.