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In which phase of matter do fusion reactions occur?
Fusion reactions occur in the plasma phase of matter. Plasma is a high-energy state of matter in which electrons are stripped from atoms, leading to a mixture of positively charged ions and free electrons. This highly energized state allows for the fusion of atomic nuclei, as seen in stars and in experimental fusion reactors.
What are two phase changes that occur when matter loses heat energy?
Two phase changes that occur when matter loses heat energy are: Solid to liquid: When a substance loses heat energy, it can transition from a solid phase to a liquid phase. This process is called melting. Liquid to gas: Another phase change that can occur when matter loses heat energy is the transition from a liquid phase to a gas phase. This process is known as vaporization or boiling.
Which star expands due to fusion?
As a star ages and runs out of fuel in its core, it can expand in size as it transitions into a red giant. During this phase, fusion reactions occur in the outer layers of the star, causing it to expand and cool. This expansion happens when the star exhausts its hydrogen fuel and begins fusing helium in its core.
Where does each phase of photosynthesis occur in?
The Chloroplast or Chlorophyl of the plant.
What nutrient provides the medium for chemical reactions to take place?
Many chemical reactions occur in water solutions. But a reaction can be realized also in solid or gaseous phase.
What is 2 way matter can change?
Matter can change through physical changes, where its form or state is altered without changing its chemical composition (e.g. melting ice into water), and chemical changes, where new substances are formed through chemical reactions (e.g. rusting of iron).
How do the matter and energy in a system naturally change?
In a system, matter and energy can change through processes such as chemical reactions, phase transitions, and electromagnetic interactions. Matter can be transformed into different substances, while energy can be transferred between different forms, such as kinetic, potential, thermal, or electromagnetic energy. These changes occur based on the conservation laws of mass and energy.
Why do light reactions only occur during daylight?
Obviously, there is no sunlight energy for light dependent reactions to occur while calvin cycle AKA light independent phase does not require light as it uses energy in the form of ATP and the NADPH to form sugars
Is hydrogen like plasma?
Yes, plasma is the fourth state of matter where the gas phase is heated to high temperatures, causing the atoms to ionize. Hydrogen can be in a plasma state at very high temperatures, such as in stars or during fusion reactions.
What are the reactions of the first stage of the photosynthesis called?
This is called the light phase oh photosynthesis as opposed to the dark phase. During the light phase, photons excite enzymes on the thylakoid. Also can be known as Light-Dependent Reactions
What occurs in the second phase of photosynthesis?
In the second phase of photosynthesis, known as the light-independent reactions or the Calvin cycle, carbon dioxide is converted into glucose using the energy stored from the light-dependent reactions. This process takes place in the stroma of the chloroplasts and does not require light to occur.
Which stage of stellar evolution is characterized by the fusion of hydrogen atoms into helium atoms?
The stage of stellar evolution characterized by the fusion of hydrogen atoms into helium atoms is known as the main sequence phase. During this phase, a star generates energy through nuclear fusion in its core, balancing the gravitational forces pulling inward with the outward pressure from the fusion reactions. This stage can last billions of years, depending on the star's mass. The Sun, for example, has been in the main sequence stage for about 4.6 billion years and is expected to remain in this phase for several billion more.
