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Is Ag tarnishing a physical or chemical change?
Tarnishing of silver (Ag) is a chemical change. It occurs when silver reacts with sulfur compounds in the air, forming silver sulfide, which appears as a darkened layer on the surface. This process alters the chemical composition of the silver, making it different from its original state, and cannot be easily reversed through physical means.
Is the manipulation of the DNA of cells to change hereditary traits or produce biological products?
Since biological products, such as human insulin or human growth hormone, are hereditary traits, the manipulation of DNA is performed in order to change hereditary traits, which results in a change in the production of biological products. For example, bacteria do not ordinarily produce human insulin or human growth hormone as hereditary traits. However, manipulating their genome so that they carry human insulin genes or human growth hormone genes is done to change their hereditary traits, such as changes in their production of biological products, so that the bacteria now produce human insulin and human growth hormone.
Methane cows produce?
Methane cows produce methane gas through their digestive process, which is released into the atmosphere primarily through belching. Methane is a potent greenhouse gas that contributes to global warming and climate change. efforts to reduce methane emissions from livestock are being pursued to mitigate its environmental impact.
What is stem cells-?
Sometimes the bird is able to develop a new migratory pattern, but often the bird will become confused, lost and die as a result. Stem cells are biological cells found in all multicellular organisms, that can divide (through mitosis) and differentiate into diverse specialized cell types and can self-renew to produce more stem cells. www.stem-cell-regeneration.com/about
How can you tell if somthing has gone through a chemical change?
When chemical changes occur, the atoms are rearranged and the reaction is accompanied by an energy change as new products are generated. Eg of a chemical change is the reaction between sodium hydroxide and hydrogen chloride to produce sodium chloride, or common salt.
Why didnt light rays that stream through an open window into a darkened room spread evenly through the entire room?
Light rays that stream through an open window into a darkened room do not spread evenly throughout the room because they follow straight paths unless they encounter an obstacle or a change in medium. The light rays will continue in straight lines until they hit a surface or are absorbed by a material, resulting in uneven distribution of light within the room.
What process causes behavior pattern to change over generations as a result of reproductive success?
change through natural selection
What is electrical energy used to produce a chemical change?
Electrical energy can be used to produce a chemical change through a process known as electrolysis. This involves passing an electric current through a substance to stimulate a chemical reaction, breaking down compounds into their constituent elements or forming new compounds. Examples include the electrolysis of water to produce hydrogen and oxygen gases.
Is Ag tarnishing a physical or chemical change?
Tarnishing of silver (Ag) is a chemical change. It occurs when silver reacts with sulfur compounds in the air, forming silver sulfide, which appears as a darkened layer on the surface. This process alters the chemical composition of the silver, making it different from its original state, and cannot be easily reversed through physical means.
What is migration transition?
Change in the migration pattern in a society that results from industrialization, population growth, and other social and economic changes that also produce the demographic transition.
What is will produce a chemical and physical change?
physical change
Any change that does not produce a new substance is a blank?
physical change
A change in mater that produce new substances is called?
Chemical change.
What does chemical change produce?
After a chemical change new molecules are obtained.
Does a change in speed of an object always produce a change in the velocity?
Yes.
Does change in speed of an object always produce a change in velocity?
Yes.
A physical change that does not produce a new substance is called what?
A physical change that does not produce a new substance is called a reversible change. This means the change can be undone by reversing the process, such as melting or freezing.
