Chemistry Vocabulary Quiz Questions And Answers

A compound is formed when two or more elements chemically combine to create a new substance with different properties from the individual elements. In chemistry, compounds are represented by chemical formulas and can be classified as either organic or inorganic. Compounds play a crucial role in various chemical reactions and have a wide range of applications in industries such as pharmaceuticals, agriculture, and materials science.

Chemistry is the correct answer because it is the scientific discipline that studies the composition, properties, and reactions of substances. It explores the structure of matter, the changes it undergoes, and the energy involved in these transformations. Chemistry is concerned with understanding the behavior of atoms and molecules, and how they interact to form new substances. It plays a crucial role in various fields such as medicine, materials science, environmental science, and many others.

Matter refers to anything that occupies space and has mass. It can exist in various forms, such as solids, liquids, and gases. Mixture, product, and metal are all types of matter, but they do not encompass the broad definition of matter itself.

Elements are the building blocks that create compounds and mixtures. Compounds are formed when two or more elements combine chemically, while mixtures are formed when elements are physically mixed together. Reactants are substances that undergo a chemical reaction, and gum is not a building block for compounds or mixtures. Nonmetals, although they can be elements, do not encompass all the elements and therefore cannot be considered as the correct answer.

A process in which one or more substances are changed into others is commonly referred to as a reaction. This term is widely used in chemistry to describe the transformation of substances through chemical reactions. It encompasses various types of reactions, such as synthesis, decomposition, combustion, and many others. The term "reaction" accurately describes the fundamental concept of substances undergoing changes and forming new substances.

A mixture is a substance consisting of two or more substances combined together. In a mixture, the substances retain their individual properties and can be separated through physical means such as filtration or evaporation. This is different from a chemical change where new substances are formed with different properties. Reactant refers to a substance that undergoes a chemical reaction, while matter refers to anything that occupies space and has mass.

A mixture of two or more substances is a physical change. This is because in a mixture, the substances are physically combined and can be separated by physical means, such as filtration or evaporation, without any change in their chemical properties. In contrast, a chemical change involves a transformation of the substances, resulting in the formation of new substances with different chemical properties.

A chemical substance formed as a result of a chemical reaction is referred to as a product. In a chemical reaction, reactants combine and undergo a transformation to produce new substances, which are known as products. These products have different chemical properties compared to the reactants and can be in the form of solids, liquids, or gases. Therefore, the correct answer is "Product."

A chemical change refers to a process in which the chemical identity of a substance is altered. This means that the original substance undergoes a transformation, resulting in the formation of new substances with different chemical properties. This can involve various reactions such as combustion, decomposition, or synthesis, where bonds between atoms are broken and new bonds are formed. In contrast, a physical change does not involve a change in the chemical composition of a substance, only its physical properties.

A metal is a substance that exhibits the properties of being shiny, malleable, and having the ability to conduct electricity. Metals have a lustrous appearance due to their high reflectivity of light. They are also capable of being bent or shaped without breaking, which is known as malleability. Additionally, metals have free electrons that can move easily, allowing them to conduct electricity and heat efficiently. Therefore, metal is the correct answer for this question.

A starting material before a chemical change is known as a reactant. In a chemical reaction, reactants are the substances that are present at the beginning and undergo a chemical change to form new substances called products. Reactants are typically consumed during the reaction and are necessary for the reaction to occur. In this context, metal, product, and strawberry are not relevant to the definition of a reactant.

A physical property refers to any characteristic or attribute of an object or substance that can be observed or measured without altering its composition or identity. Examples of physical properties include color, shape, size, density, temperature, and conductivity. These properties provide information about the physical state or behavior of the object or substance and can be quantitatively measured using various instruments or techniques.

A physical change refers to a process where the substance undergoes a transformation in its physical properties, such as shape, size, or state, without altering its chemical composition or identity. In this context, a physical change is the correct answer because it accurately describes a situation where the chemical identity of the substance remains unchanged.

A non-metal is brittle and typically has a dull appearance. Metals, on the other hand, are generally malleable or ductile and have a lustrous (shiny) appearance when polished.

A metalloid is a type of element that exhibits properties of both metals and nonmetals. This means that it can conduct electricity like a metal, but also has characteristics of nonmetals such as being brittle and having lower melting points. Metalloids are located on the periodic table between metals and nonmetals, forming a diagonal line. They are important in various industries and applications, such as semiconductors in electronics.

The conservation of mass refers to the principle that matter cannot be created or destroyed, only transformed or rearranged. This means that the total mass of a closed system remains constant over time. This concept is a fundamental principle in physics and chemistry, and it is often applied in various scientific fields to analyze and understand chemical reactions, physical processes, and natural phenomena.

A chemical property refers to the characteristic of a substance that describes how it reacts with other substances or undergoes a chemical change. Examples of chemical properties include the ability to oxidize, undergo a color change, or react with acids or bases. These properties are inherent to the substance and can be used to identify and classify different materials based on their chemical behavior.