0
What else can I help you with?
What changes the rate of a chemical reaction or allows a chemical reaction to occur?
Heat?
How does a physical reaction different form a chemical reaction?
A physical reaction involves changes in the state or appearance of a substance without altering its chemical composition, such as melting, freezing, or dissolving. In contrast, a chemical reaction results in the formation of new substances with different chemical properties through the breaking and forming of bonds, as seen in processes like combustion or rusting. Essentially, physical reactions are reversible while chemical reactions often produce irreversible changes.
Can a chemical and physical change also be called a chemical and physical reaction?
Yes, chemical changes can be referred to as chemical reactions, as they involve the transformation of substances into different chemical entities. Similarly, physical changes may be described as physical reactions, as they involve alterations in the state or appearance of a substance without changing its chemical composition. However, the term "reaction" is more commonly associated with chemical changes, while "change" is often used for both types.
Do chemical equations show summaries of physical change?
Chemical equations show the identities of the substances involved in a chemical reaction and the ratios in which they react or are produced. They do not provide a summary of physical changes such as changes in state or appearance. Physical changes involve alterations in the physical properties of a substance without changing its composition.
If a substance explodes when it reacts with water is it a chemical or physical change?
It is a chemical change because the reaction involves the breaking and forming of chemical bonds in order to create new substances. Physical changes typically involve changes in state or appearance without altering the chemical composition of the substances involved.
Describe the two types of energy changes that occur in a chemical reaction?
An exothermic reaction and the change between potential and kinetic.
Is luster a chemical or physical or chemical reaction?
Luster is a physical property, not a chemical reaction. It refers to how light is reflected off the surface of a material, giving it a shiny appearance. It is based on the arrangement of atoms in the material and not on any chemical changes.
What comes out of a reaction?
Chemical changes occur after a chemical reaction.
What evidence do you have that a chemical reaction took place?
Evidence of a chemical reaction includes the formation of a new substance with different properties, changes in color, the release of gas or heat, or the formation of a precipitate. Additionally, changes in mass due to the rearrangement of atoms in the reactants can also indicate a chemical reaction has occurred.
How do physical and chemical changes affect mass?
law of consevation of mass states that the total mass before a chemical reaction is the same as the total mass after the chemical reaction
Is turning a penny gold a chemical or physical reaction?
Turning a penny gold is a physical reaction rather than a chemical reaction. This process involves coating the penny with a layer of gold, which changes its appearance but does not alter the chemical composition of the penny itself.
What changes the rate of a chemical reaction or allows a chemical reaction to occur?
Heat?
How does a physical reaction different form a chemical reaction?
A physical reaction involves changes in the state or appearance of a substance without altering its chemical composition, such as melting, freezing, or dissolving. In contrast, a chemical reaction results in the formation of new substances with different chemical properties through the breaking and forming of bonds, as seen in processes like combustion or rusting. Essentially, physical reactions are reversible while chemical reactions often produce irreversible changes.
Does a chemical reaction cause chemical changes?
yes
Can a chemical and physical change also be called a chemical and physical reaction?
Yes, chemical changes can be referred to as chemical reactions, as they involve the transformation of substances into different chemical entities. Similarly, physical changes may be described as physical reactions, as they involve alterations in the state or appearance of a substance without changing its chemical composition. However, the term "reaction" is more commonly associated with chemical changes, while "change" is often used for both types.
What is the purpose of writing a word equation in chemistry?
It is one way of representing a chemical reaction: it tells you what reacts and what is produced. Word equations are an efficient way to describe chemical changes, to help chemists recognize patterns, and to predict the products of a chemical reaction.
What is the changes of matters?
This is a chemical reaction.
