Test your knowledge of chemistry with this quiz covering topics such as valency,...

Valency is the combining capacity of an element, which determines how many atoms of other elements it can combine with to form a compound. It is usually determined by the number of electrons an atom needs to gain, lose, or share to attain a stable electron configuration.

An element is a substance made up of only one type of atom, while a compound is a substance made up of two or more different types of atoms chemically bonded together. Elements cannot be broken down into simpler substances by chemical means, while compounds can be broken down into their constituent elements.

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties. It provides a systematic way to understand the relationships between elements and predict their properties. The table also helps in identifying trends in atomic size, electronegativity, and reactivity.

<p>Stoichiometry is the calculation of reactants and products in chemical reactions. It helps in determining the amount of products formed from given reactants, and vice versa. It is important in understanding the quantitative aspects of chemical reactions and in predicting the amount of products that can be obtained.</p> Signup and view all the answers

<p>Chemical equilibrium is the state in a reversible reaction where the rate of the forward reaction equals the rate of the reverse reaction. It is important as it helps in understanding the behavior of reversible reactions, determining the composition of the equilibrium mixture, and predicting the effects of changing conditions on the equilibrium position.</p> Signup and view all the answers

<p>Acid-base titration is a technique used to determine the concentration of an acid or a base. It involves slowly adding a solution of known concentration to a solution of unknown concentration until the reaction between the two is complete. It is used in analytical chemistry to determine the concentration of unknown solutions and to identify unknown substances based on their reaction with known substances.</p> Signup and view all the answers