split is placed in the mouth of the tube‚ the flame goes out and the remains go in the tube. Reaction 3- My hypothesis for reaction 3 is that the moistened litmus paper changes color. The odor will be a chemical odor that smells bad. The burning splint will be extinguished. Reaction 4- My hypothesis for reaction 4 is that adding hydrochloric acid to solid calcium carbonate produces bubbles maybe. When burning the splint is placed on the test tube‚ the flame is extinguished. Reaction 5- My hypothesis
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the Hydrogen that was produced and observed the combustion reaction with a flame. I then captured more hydrogen to use later in the experiment. I combined manganese with hydrogen peroxide which bubbled much the same as the zinc and HCl to produce oxygen. I observed the reaction of the oxygen with a burning ember. I then captured more oxygen in the bulb with the hydrogen‚ and observed itʼs reaction of extinguishing the flame. I then produced carbon dioxide in a few different ways. Put lime water in
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Goggles were acquired from the goggle cabinet. 2. The candle was lit and as I placed the 50 ml beaker over the candle‚ my partner started the stopwatch to record how long the candle burned under the beaker. 3. When the flame extinguished‚ I recorded how long the flame lasted under the 50 ml beaker. 4. Steps 2 & 3 were repeated for each size of beaker. Safety: * Standard lab attire is acquired‚ including safety goggles. * Take care when working with glass * Take care
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bubbles began to appear. It seemed that the positive (+) wire had more bubbles then the negative (-) wire. After letting the experiment sit for a day the negative test tube should have had a reaction when a flame was held under it and the positive test tube should have had a reaction with a bigger flame. Mine didn’t have any reaction at all. Sadly my experiment didn’t work. Discussion: My hypothesis is the experiment will separate Hydrogen into the
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State the principle of triple beam balance A beam balance measures mass as opposed to weight‚ so the mass you weigh will be the same on the moon as it is on earth. Gravity is taken out of the equation‚ unlike a spring balance that measures weight and would measure an article to be 1/6 of the weight on the moon as it would be on earth using the same spring balance that relied on gravity. The principle is that of moment‚ or turning force/torque)‚ calculated by force x distance. Fundamentally‚
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thin and easily bent or twisted. It had a metallic surface and was brittle. It was silver in color. A flame from a Bunsen burner was held to the Mg‚ and it ignited‚ giving off a brilliant white light. Looking directly into the light resulted in temporary blindness‚ which would explain the warning on the procedures that strongly suggested not looking directly into the light. After the flame had extinguished itself due to lack of fuel‚ the Mg had turned from a metallic strip to an off-white powder
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The blending of blue and purple in the background and the red‚ orange‚ and yellow in the flames‚ is beautifully executed. It makes the flames stand out against the background. After researching Betye Saar and discovering what Blow Top Blues: The Fire Next Time represents‚ I like it even more. Saar’s pieces fight for equality to inspire change. I also like the fact
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of the observation deck on the westward side and sparkling like glittering jewels on the background of black velvet…. Oh‚ oh‚ oh..!.. As the crowd notices the flame and then...: “Its burst into flames...Get out of the way‚ please‚ oh my‚ this is terrible‚ oh my‚ get out of the way‚ please..!It is burning‚ bursting into flames and is falling...oh..! This is one of the worst...oh...! It’s a terrible sight...oh..!.. and all the humanity.” -Herb Morrison On May 6th‚ 1937‚ a Zeppelin airship
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person bursts into flames from a chemical reaction from an external source. Spontaneous means the fire spreads quickly. Combustion means the process of burning. Most of its victims are elderly and overweight. Also most of the victims were alone at their house. A lot of people think it is a false mystery. This is a controversial topic that contains a lot of theories. Many believers have many reasons why they think this is true. The investigators don’t detect any external flame. The human body needs
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after it’s placed in the test tube: The flame turned yellow and burned out Record the duration of the burn: 9 seconds Experiment 2 Data and Observations Step 3 Record the initial pH value of the water in the beaker: 5.7 Step 7 Record the pH value of the water in the beaker at: 8:00 am: 6.0 9:00 am: 6.4 10:00 am: 6.7 11:00 am: 7.1 12:00 pm: 7.4 Step 11 Record the behavior of the glowing splinter after it’s placed in the test tube: The flame was green and yellow and lasted 8.5 seconds
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