Acid Strength Grade 10- Science (chemistry) 11/23/2012 Mariana Boff Acids Strength Acids are substances that contain hydrogen atoms which detach to form hydrogen ions when the acid is dissolved. Acids are divided into two main categories: the strong and weak acids. The stronger ones are very corrosive and can cause severe skin burns‚ here are some examples: nitric acid (HNO3)‚ hydrochloric acid (HCl) and sulfuric acid (H2SO4). The weaker ones are less corrosive and when in touch with the
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Jennifer Everett Phase 4 DB Instructor: Clement Yedjou 3/10/2015 Acid rain Acid rain is a result of air pollution that is harmful to the environment‚ generally caused by fuels being burnt. When any type of fuel is burnt‚ many different chemicals are produced. These gases that are released react with the water in clouds‚ and the rain from these clouds is acid rain. This type of acid disposition can appear in many other forms besides just rain‚ such as sleet‚ snow‚ and fog (Editorial Board‚ 2013)
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Results and Conclusion: Childhood Obesity As previously discussed childhood obesity is a major illness in the United States mainly but also all over the world. While childhood obesity has increased rapidly over the years‚ many wonder what can be done in order to fix this issue. Can a child`s cafeteria at school make a difference? If so‚ are there healthier options for children to choose from? Throughout the paper‚ the author will touch base on how the results of the data collection method‚ the
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-Unknown Mixtures Lab- Purpose: The aim of this experiment was to find out the two substances of the unknown mixture from salt‚ sugar‚ dirt‚ and baking soda by looking at its properties. Hypothesis: Find the unknown substance by testing it out by heating it‚ pouring water‚ vinegar‚ and observing it . Procedure: 1) Materials- * 100ml of water * Vinegar * Bunsen Burner * 2 beakers * 1 spatula 2) First‚ do steps (3-6)to find out the properties of salt‚ sugar‚
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Cebu Institute of Technology Phys 202 /K3 I. Title: Specific Heat of Solids II. Object: To determine the specific heat capacity of solids by methods of mixtures. III. Theory: When to or more substances at different temperatures are mixed‚ heat will flow from the substance of higher temperature to the substance of lower temperature. The heat flow will continue until equilibrium in temperature is reached. From the Law of Conservation of Energy‚ whatever amount of heat is lost by the hot substance
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Purpose 1. To prepare a dry-packed sample of product mixture of ferrocene and Acetylferrocene 2. To separate and purify the components in the product mixture by column chromatography. 3. To check the purity of the components by thin-layer chromatography (TLC). 4. To calculate the yield of acetylferrocene and the percent recovery of unreacted ferrocene. Table of Quantity showing various physical properties Type of substance Molecular Formula Molecular Weight (g/mol) Density(g/cm3) M.P
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Abraham Conclusion While writing the whole play for my group‚ and doing research‚ I learned a lot of things about Abraham. God helped Abraham a lot‚ first with the blessing‚ then Lot‚ and even for the birth of Isaac. Most of the time when something bad happens‚ Abraham doubted God. God never zapped him‚ or kill him‚ He was patient. At the end‚ Abraham could not help Isaac find a wife himself for he is weak and old‚ he trusted that God will help him like the way God helped him before. I think faith
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Conclusion 1.2.2 Ashwath Ramesh 1. Why are there sutures on the human skull? What does this tell you about the actual structure of the skull? There are sutures on the skull because when you were born the skull was six parts and that allow the head to come out of the birth canal‚ then it will mend together into 3 parts. 2. Think about the structure and function of your backbone. Why do you think there are discs of cartilage between the bones in the vertebral column? There are
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opinions on the issue of the “Tar sands” or “Oil sands” (I shall use both unambiguously) development. Environmentalists (like myself) and concerned citizens in Canada‚ as well as the international community‚ decry that the largest industrial energy project on the face of the planet is destroying future generation’s right to clean soil‚ water‚ air‚ biodiversity and most importantly a stable climate. As well as strong local economy‚ the current economic setup of the tar sands’ development is to focus on
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Salt and the effect it has on water. Do you like salt? Do you put it on your food to make it taste better? Salt doesn’t just make food taste better; it can change the freezing and boiling point of water. I bet you didn’t know that! There’s a reason for that‚ but I’ll explain that a little later. First‚ let’s find out if salt can actually change the freezing and boiling point of water. To do so‚ we need to do an experiment. Now‚ if you’re going to do an experiment‚ you’re going to need a hypothesis
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