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Need help on science homework has anyone answered this question Are the changes from a to b and from b to c physical or chemical changes explain your answer?
The changes from A to B and from B to C are physical changes. Physical changes do not alter the chemical composition of the substances involved. In this case, the changes are likely related to states of matter or physical appearance, rather than chemical composition.
How you describe the changes that happened to the materials when heated?
When materials are heated, they can undergo physical or chemical changes. Physical changes include state changes like melting or boiling, while chemical changes involve the molecules rearranging to form new substances. Heating can also increase the kinetic energy of molecules, causing them to move faster and potentially break bonds.
Which materials can be change into different materials with the application of heat?
Materials such as metal, glass, and plastic can undergo changes in physical or chemical properties when subjected to heat. These changes may include melting, reshaping, or even chemical reactions that result in a transformation into a different material.
What is always a characteristic of a chemical change but not always a characteristic of a physical change?
When a chemical change takes place, the chemical structure of particles involved changes (i.e. one or more new substances are formed). In a physical change, the physical state of the particles involved changes (e.g. a solid melts and becomes a liquid). The chemical structure of the particles does not change, and no new substance is formed.
Chemical changes can be reserved by physical change?
No, chemical changes cannot be reversed by physical changes. Chemical changes involve the formation of new substances with different properties, while physical changes only affect the state or appearance of a substance without changing its chemical composition. Once a chemical change occurs, it cannot be undone by a physical change.
Is energy always involved in physical or chemical changes?
Yes
Is twisting a wire chemical or physical change explain?
It is physical. The wire changes shape, but it is still made of the same materials.
Does a chemical reaction change physical properties or chemical?
A chemical reaction changes the chemical properties of substances involved by forming new substances with different chemical compositions. This can result in changes in physical properties such as color, temperature, odor, and state of matter.
Need help on science homework has anyone answered this question Are the changes from a to b and from b to c physical or chemical changes explain your answer?
The changes from A to B and from B to C are physical changes. Physical changes do not alter the chemical composition of the substances involved. In this case, the changes are likely related to states of matter or physical appearance, rather than chemical composition.
Are fireworks an example of physical or chemical change?
Chemical change. A good hint for this one is that there is fire involved, which usually means that the chemical itself is being changed. The constituent materials oxidize (burning quickly - explosion - is very rapid oxidization) and form new compounds i.e. the chemicals change.
What are the good effects of physical change and chemical change?
Physical changes can include changes in size, shape, or state, while chemical changes involve the formation of new substances. Good effects of physical changes can include creating new materials like paper from wood pulp, while good effects of chemical changes include producing new medicines through chemical reactions. Both types of changes can be used to create new products and materials for various applications.
What is The difference of physical science and chemical science?
Chemical science is the study of chemical changes, i.e. changes that involve electron transfer, bond formation and the thermodynamics and kinetics involved in these changes. Physical science is a broader term that encompasses the study of natural phenomena. Chemical science can be considered as a part of physical sciences.
What name do you give to temporary changes into materials?
Temporary changes in materials are often referred to as physical changes. These changes do not alter the chemical composition of the material and can usually be reversed by physical means. Examples include changes in state (e.g. melting, freezing) or changes in shape.
What are the chemical and physical changes of photosynthesis?
There are no physical changes. there are only chemical changes.
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.
What is always involved when physical or chemical changes occur in matter?
When physical changes occur in matter, the substance's state or appearance changes without altering its chemical composition. In contrast, chemical changes involve a modification in the substance's chemical composition, resulting in the formation of new substances.
Is cutting materials such as wood a physical change?
yes. If the matter changes completely, then that is a chemical change.
