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Why do alcohol keep on burning even if the flame is dead during photosynthesis experiment?
In a photosynthesis experiment, when alcohol (often ethanol) is used as a fuel, it can continue to burn even if the visible flame appears to be extinguished due to the presence of unburned vapor. This is because alcohol can produce flammable gases that may ignite at lower temperatures, sustaining combustion in the presence of oxygen. Additionally, the heat generated can keep the alcohol vaporized, allowing it to ignite upon exposure to air, even when the initial flame is not visible.
What else can I help you with?
Why to destarch a plant?
a leaf (plant) should be destarched before photosynthesis investigations because the starch already present in the plant may mislead the result . hence if a destarched plant is used for the experiment then the amount of starch present at the time of the experiment will be nil and affter the experiment is compleded the amount of starch present in the leaves woul give the rate of photodynthesis as starch id prepared during photosynthesis
Why is burning alcohol a chemical change?
Burning alcohol is a chemical change because it involves a chemical reaction where the alcohol molecule is broken down into different substances (such as carbon dioxide and water) with new properties. Energy is released during the reaction, and the composition of the alcohol is permanently altered.
The bottom of a test tube was covered with soot after an experiment which required heating. What kind of flame was used during the experiment?
A yellow, smoky flame was likely used during the experiment, which produced soot as a byproduct of incomplete combustion. This type of flame is often seen with a fuel-rich mixture or inefficient burning of the fuel.
What was Jan ingenhousz hypothesis of photosynthesis before doing the experiment?
Jan Ingenhousz hypothesized that plants produce oxygen during photosynthesis. He also proposed that the green parts of plants play a crucial role in this process.
What is manufacture by plants during photosynthesis?
the manufactured by plants during photosynthesis is glucose.
Why did PH change during the light experiment?
Because the Photosynthesis added carbon dioxide to the water
What safety precautions are cited during the experiment of burning iron in oxygen atmosphere?
welding mask
Why to destarch a plant?
a leaf (plant) should be destarched before photosynthesis investigations because the starch already present in the plant may mislead the result . hence if a destarched plant is used for the experiment then the amount of starch present at the time of the experiment will be nil and affter the experiment is compleded the amount of starch present in the leaves woul give the rate of photodynthesis as starch id prepared during photosynthesis
Which substances is used to remove chlorophyll from a green leaf during photosynthesis?
Alcohol, such as ethanol or methanol, is commonly used to remove chlorophyll from a green leaf during photosynthesis. This process is known as leaf decolorization or leaf destarching.
Why would you use sodium hydrocarbon and potassium hydroxide in a photosynthesis experiment?
In a photosynthesis experiment, sodium bicarbonate is used to provide a carbon source for the plant during photosynthesis. Potassium hydroxide is used to remove any excess carbon dioxide present in the experimental setup to simulate ideal photosynthetic conditions.
What gas do bubbles contain if there is an experiment wether pondweed still has as much photosynthesis underwater?
The bubbles produced by pondweed during photosynthesis underwater contain oxygen gas. This is a byproduct of the process and indicates that photosynthesis is occurring. If the experiment permits the bubbles to escape, they can be collected and tested to confirm the presence of oxygen.
What is a simple photosynthesis experiment that can be conducted to demonstrate the process of photosynthesis?
One simple photosynthesis experiment is to place a small plant in a clear plastic bag with a small amount of water and seal it. Place the bag in sunlight for a few hours. The plant will release oxygen during photosynthesis, which can be observed as bubbles forming in the water. This demonstrates how plants use sunlight to produce oxygen.
Why is burning alcohol a chemical change?
Burning alcohol is a chemical change because it involves a chemical reaction where the alcohol molecule is broken down into different substances (such as carbon dioxide and water) with new properties. Energy is released during the reaction, and the composition of the alcohol is permanently altered.
What type of energy is use when burning wood?
Burning wood releases chemical energy stored in the wood as potential energy during photosynthesis. This chemical energy is converted into thermal energy and light energy during combustion.
Why is it unethical to conduct an experiment with humans that would determine if alcohol consumption during pregnancy causes damage to the fetus?
The experiment you describe is unethical for two reasons. In the first place, the fetus in question is a human being who will have a greatly reduced quality of life as a result of the fetal alcohol syndrome that you caused by means of your experiment, which is a violation of human rights. In the second place, the experiment is entirely unnecessary, since there are lots of irresponsible women who have consumed excessive amounts of alcohol while pregnant and have given birth to babies who suffer from fetal alcohol syndrome, so we already know what the medical consequences are, of alcohol consumption during pregnancy.
What is the starch and the glucose mixture supposed to represent?
The starch and the glucose mixture in the context of a photosynthesis experiment typically represent the process of photosynthesis in plants. Starch represents the stored form of energy produced during photosynthesis, while glucose represents the immediate product of photosynthesis that can be used for energy or converted to other molecules.
The bottom of a test tube was covered with soot after an experiment which required heating. What kind of flame was used during the experiment?
A yellow, smoky flame was likely used during the experiment, which produced soot as a byproduct of incomplete combustion. This type of flame is often seen with a fuel-rich mixture or inefficient burning of the fuel.
