in a heterogeneous mixture distillation: liquid is boiled to produce a vapor that is condensed into a liquid i.e.: separating water from other components in tap water 2.3 element simplest for mof matter that has a unique set of properties compound: subsgtance that contains two or more elements chemically combined in a fixed proportion chemical change: change that produces matter with a different composition than the original matter chemical symbol: each element represented by a one or
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The aim of this Lab Exercise is to use the mass of a chemical and use that mass to find the amount of moles of the final product you can get using the empirical formula. Introduction: The empirical formula of a compound is the simplest whole-number ratio of the elements in the compound‚ which as you will discover‚ is a ratio of the moles of those elements. “Empirical” also means “experimentally determined”. In this experiment‚ we find the empirical formula of the oxide of magnesium. We will accomplish
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Verb Dehumanize means to deprive of human qualities or attributes; divest of individuality. Etymology- De (not) + humanize (to make human) Dehydrate- Verb Dehydrate means to deprive (a chemical compound) of water or the elements of water. Etymology- De (not) + hydrate (presence of water in a compound or living object) Defrost- verb Defrost means to remove the frost or ice from an object. To melt an object from ice or frost to a liquid form. Etymology- De (undo) + frost (to freeze an object) Deescalate
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A scientist separated a mixture to obtain the specific substance that was in need. Many of the compounds and mixtures today are not found in its pure form‚ but in mixtures. Many scientists have the impression that separating mixtures is an important part of chemistry and modern academics. How can the components of mixture be separated and analyzed? Background Information: All elements and compounds are pure substances and they are categorized by having specific properties that are unique from other
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concentrations of the other major components of Red Bull and Sugar Free Red Bull were not obtained because analysis of those compounds required a higher degree of expertise than can be offered for this lab and will be identified by process of comparison‚ elimination and two dimensional spectral analysis where both protons and carbon 13 are examined to identify and quantify a compound that does not show up on a one dimensional NMR spectrum. This experiment will allow students to gain a better understanding
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MATTER AND CHANGE Name _____________________________________ PRACTICE PROBLEMS Period _________________ Date ______________ SECTION 2.1 MATTER 1. Which of the following is not a physical change? a. dissolving sugar in water b. burning gasoline in an engine c. evaporating sea water to obtain salt d. slicing a piece of bread 2. Which of the following is not a property of a gas? a. has a definite shape b. has no definite volume c. assumes the shape of
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weight boat (lid) Procedure: 1. Measure the mass of a beaker‚ 10mL vinegar‚ and 10g baking soda. 2. Mix the compounds in the beaker and wait for the reaction to finish. 3. Record the mass of the beaker and its contents. 4. Determine the remaining mass of the chemicals in the beaker. 5. Measure the mass of a new beaker‚ a plastic weight boat‚ 10mL vinegar‚ and 10g baking soda. 6. Mix the compounds in the beaker‚ and immediately place the plastic boat over the beaker so that it acts as a lid‚ and wait
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Question #1 | | | Jamie wants to earn $500 in interest so she’ll have enough to buy a used car. She puts $2000 into an account that earns interest. How long will she need to leave her money in the account to earn $500 in interest? | | | | Question #2 | | | A local bank is advertising that you can double your money in eight years if you invest with them. Suppose you have $1000 to invest. What interest rate is the bank offering? | | | Try These | | | | | | | |
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Discussion An empirical formula is a formula for a chemical compound found by direct laboratory examination. Laboratory procedures allow the chemist to find the simplest whole number ratio of elements within the compound. In order to find the true molecular formula‚ the chemist also needs to know the compound’s molecular mass. The general procedure is to use laboratory techniques to determine the mass of each element in the compound. In this lab‚ we will react a known quantity of magnesium metal
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Paul Munnelly Business Logistics & Transportation Case Study 1 Integrated Logistics for DEP/GARD Company: C1 C2 C3 C4 C5 C6 Percentage: 60‚60‚15‚15 25‚25‚15‚15 15‚15‚25‚25 60‚60 25‚25 25‚25 Compound: A B E F A B C D A B E F C D E F C D DEP Materials Inventory (7 Days) Manufacturing (6-8 Days) Distribution Warehouse DEP Truck (since destination is within 200 miles) GARD 1. As
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