Intermolecular forces.
B) Cu
C) Fe
D) Sb
Answer;
-Copper (Cu)
Explanation;
-While all metals can conduct electricity, certain metals are more commonly used due to being highly conductive. The most common example is Copper. It is highly conductive which is why it is has been used in electrical wiring.
-Copper is used for electrical wiring because it is a good conductor of electricity. Metal particles are held together by strong metallic bonds, which is why they have high melting and boiling points. The free electrons in metals can move through the metal, allowing metals to conduct electricity.
sodium (Na) and potassium (K)
carbon (C) and oxygen (O)
boron (B) and beryllium (Be)
Answer:
The correct answer is the second option; sodium (Na) and potassium (K.)
Both sodium and potassium have the same number of valence electrons.
Explanation:
-Its taste
-ability to dissolve ionic substances
-ability to produce buoyant forces
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.
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(2) N2(g) + H2(g) =>NH3(g)
(3) 2NaCl(s)=>Na(s) + Cl2(g)
(4) 2KCl(s) => 2K(s) + Cl2(g)
The correct balanced chemicalequation is 2KCl(s) => 2K(s) + Cl2(g).
The correct balanced chemical equation from the options provided is (4) 2KCl(s) => 2K(s) + Cl2(g).
In this equation, two molecules of potassium chloride (KCl) react to form two molecules of potassium (K) and one molecule of chlorine gas (Cl2). This equation is balanced because the number of atoms of each element is equal on both sides of the equation.
For example, there are two atoms of potassium and two atoms of chlorine on both sides of the equation, ensuring the equation is balanced.
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