similar to a popped piece of popcorn and it blows out the flame. 2. Oxygen B. When manganese reacts with H2O2 small bubbles form around the pieces of manganese and carbonates the whole solution. E. When I put the glowing toothpick in the oxygen gas it caused the toothpick to light up instantly for a short period and then made it glow brighter red. 3. Hydrogen and Oxygen Mixture D. When the hydrogen and oxygen mixture came in contact with the flame it caused a very loud pop and extinguished
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Chemistry I am chemistry. I am mysterious and mature‚ malodorous‚ yet vivacious. I am a heaving search for answers to all kinds of interesting questions. I am extremely broad‚ that I overlap with all the other natural sciences. I am the fundamental unit of matter-the atom-only to be seen by the utmost effective microscope. I prosper in the dashing‚ fiery flames in a fragile glass beaker over a bunsen burner and develop powerful rocket fuels. I am a clamorous explosion of two flammable chemicals
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of Water In Living Organisms Water is the most important molecule in cells‚ the whole organisms and on earth‚ this is due to it’s unique physical and chemical properties. ” A water molecule‚ because of its shape‚ is a polar molecule. That is‚ it has one side that is positively charged and one side that is negatively charged”(1). A water molecule is made up of two hydrogen atoms and one oxygen atom and the bonds between these atoms are single covalent bonds. Fig 1. The polarity of a water molecule
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and Discussion Report 9: Redox Titration: Winkler Method for Dissolved Oxygen Determination The three main objectives of the experiment are to (1) determine dissolved oxygen (DO) in water using the classical method (redox titration)‚ (2) discuss the chemistry behind the Winkler method for DO analysis and (3) describe the sampling technique for the analysis of DO in water sample. In the Winkler method‚ or Iodometry‚ the dissolved oxygen is made to react with Iodide ion to yield Iodine which will be
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Why is water important for living organisms? Water is very important in all living organisms‚ it is vital for many different things. Around 70% of our body weight is due to water. The quantity is high in organs such as lungs and brain and fluids such as blood‚ lymph‚ saliva and secretions by the organs of the digestive system. First of all water is vital in the regulation of body temperature to depending on the temperature mammals will alter the amount they sweat. If they are to warm the amount
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Plants Which Produce Oxygen at Night‚ Debunked. Can some plants produce oxygen at night? I hear you ask‚ after all the internet is filled with articles stating that plants suck as snake plant‚ and some types of daisies and others produce oxygen at night. But remember your primary school science classes‚ when you learnt that plants practice a ‘magical’ process called photosynthesis? A plant needs light and water‚ to turn carbon dioxide into carbohydrates‚ and oxygen is the waste product of this
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Chapter I Introduction Photosynthesis is the process by which autotrophic organisms convert light energy to chemical energy in the form of glucose. Without this process life on earth would be very different because every organism directly or indirectly depends on photosynthesis. Photosynthesis helps the plants to grow roots‚ leaves‚ flowers and fruits. It is an extremely important process because plant tissue serves as the bottom of every food chain. The process of photosynthesis is dictated
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Oxygen is one of the most important and abundant elements on Earth. About 46 percent of the Earth’s crust is oxygen. It is colorless and odorless and makes up about 20.95 percent of the atmosphere by volume. Oxygen exists in water as part of water molecule‚ in the atmosphere as a gas‚ in the Earth’s crust and in an enormous variety of rocks and minerals. It can also be released from the plants through photosynthesis. Moreover it is very essential for life and is part of almost every biological molecule
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Title: the mechanism of carbon dioxide and oxygen exchange in the respiratory of human Abstract The purpose of the experiment is to determine gas exchange activity in the respiratory system of human. The first lab for comparing the room and breathe temperature was to understand the function of the nasal cavity where the gas passed after an inhalation. The second lab for changing of chest circumference and abdomen circumference between inspiration and expiration was to know how the air moved in
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partial pressure of oxygen‚ an increased partial pressure of carbon dioxide‚ a reduced PH‚ and an increased temperature. Consequently as much as 73% of the oxygen picked up by haemoglobin in the lungs is released in skeletal muscles during periods of physical exercise. Utilisation When we inhale air‚ oxygen is transported to the lungs and can be utilised by the body to stay alive. Oxygen is used to produce ATP for energy “the principle energy transferring molecule in living systems”(Anatomy and
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