Explain what an air mass is?

yes, the right answer is C. MgF2

Answer: ability to dissolve ionic substances

Explanation: Water is made up of hydrogen and oxygen molecules. The less electronegative hydrogen atoms occupy partial positive charge and oxygen being more electronegative occupy partial negative charge.

Due to this polarity, it is able to interact with ionic substances and thus dissolve them easily which is explained by the statement Like dissolves like. The ionic compounds are soluble in polar solvents and non ionic compounds are soluble in non polar solvents.

The ability to dissolve ionic substances is primarily due to the uneven distribution of charge between the hydrogen and oxygen atoms in water.

Water is a polar molecule, meaning it has a positive charge on one side (hydrogen) and a negative charge on the other side (oxygen). This polarity is a result of the unequal sharing of electrons between the hydrogen and oxygen atoms in the water molecule. The oxygen atom has a higher electronegativity than the hydrogen atoms, pulling the shared electrons closer to itself, resulting in a partial negative charge around the oxygen atom and a partial positive charge around the hydrogen atoms.

Because of its polarity, water molecules are attracted to ions in ionic substances. When an ionic compound, such as sodium chloride (NaCl), is added to water, the polar water molecules surround and separate the positive and negative ions, breaking the ionic bonds and causing the substance to dissolve. This ability of water to dissolve ionic substances is essential for various biological processes and makes it an excellent solvent for many substances.

In contrast, the other properties listed (color, taste, ability to produce buoyant forces) are not primarily related to the uneven charge distribution in water molecules but are influenced by other factors such as impurities, dissolved substances, and the reflection of light.

To learn more about distribution of charges, here

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The correctanswer between all the choices given is the 4th choice or letter D. I amhoping that this answer has satisfied your query and it will be able to helpyou in your endeavor, and if you would like, feel free to ask another question.

Ans: The products have lower potential energy than the reactants, and the enthalpy change is negative.

In general, chemical reactions can be broadly classified into two categories:

1) Exothermic

2) Endothermic

Exothermic reactionsproceed with the evolution of heat. Here, the reactants have a higher potential energy which is released as the reaction progresses to form products. Consequently, the products are in a lower energy state. Since energy is released, the enthalpy change will be negative.

In contrast, endothermic reactions proceed with the absorption of heat. Here,the products will be in a higher energy state. Since energy is absorbed, the enthalpy change will be positive.

Answer:

                   Another name for the activated complex is Transition State.

Explanation:

                     According to Collision Theory for a chemical reaction to occur the reactants must collide with proper orientation and required energy. In this way the old bonds are broken and new bonds are formed. The mid point of highest energy at which both bond formation and breakage is taking place is called activation complex, a complex in between reactant and product.

                      The energy of this complex is the minimum amount of energy required for a particular reactants to convert into products and is called as Activation Energy.

                      This activation complex is also termed as Transition State because according to Transition State Theory at transition state the existing bonds tend to increase in length and become weaken while, the new forming bonds tend to decrease in length and start becoming stronger. Hence, the activated complex is in transition between reactants and products.