Neurotransmitters are chemicals that transmit signals across a synapse‚ a structure that permits to pass electrical or chemical signal to another cell from one neuron to another. Neurotransmitters are synthesized from converting substances that are readily available to the body such as amino acids‚ which are available from food and only need some converting into transmitters. Neurotransmitters crucial to daily life and functions. Scientists are uncertain exactly how many Neurotransmitters there are
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Jarriette kenn D Patenio Jaymar patana Job madronal Do all ideal gases have the same molar volume? An ideal gas has the following equation of state (an equation which relates various thermodynamic properties for a substance‚ such as pressure‚ temperature and molar volume): Pv = RT P - pressure v - molar volume R - universal gas constant T - absolute temperature Clearly the molar volume depends on temperature and pressure‚ so if two gases are at different conditions then they
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EXPERIMENT 4B: THE MENDELEEV LAB OF 1869 Materials: 30 element cards‚ periodic table Aim: How can we identify elements based on their propeties? Background: Russian chemist Dmitri Mendeleev is generally credited as being the first chemist to observe patterns emerge when the elements are arranged according to their properties. Mendeleev’s arrangement of the elements was unique because he left blank spaces for elements that he claimed were undiscovered as of 1869. Mendeleev was so confident
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The objective of this lab is to convert copper (Cu0) “in a series of reactions to various compound containing copper as the Cu2+ species” (CHM111 Laboratory Manual) in order to prove the Law of the Conservation of Mass. Introduction In this experiment‚ we took a look at how copper (Cu0) reacts with different substances to get an end result where it is transformed back to its original state. There were five different reactions that involved copper. We first experimented with copper metal and converted
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P.1 Multiple Choice Questions 1) Water‚ ‚ is an example of a(n) ________. A) chemical B) solid C) wave D) electric charge E) element Answer: A 2) In this list‚ which substance can be classified as a chemical? A) salt B) sleep C) cold D) heat E) temperature Answer: A 3) One example of a chemical used in toothpaste is ________. A) chlorine B) sulfur C) carbon dioxide D) calcium carbonate E) sugar Answer: D 4) Which of the
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Research The Chemical name for Baking Soda: Baking soda is sodium bicarbonate. The molecular formula of sodium bicarbonate is NaHCO3. What Baking Powder contains: Baking powder is a raising agent that is commonly used in cake-making. It is made from an alkali- bicarbonate of soda‚ and an acid- cream of tartar‚ plus a filler like corn flour or rice flour which absorbs moisture. Baking powder is a mixture of leavening agents (baking soda‚ acid salts) and inert ingredients (cornstarch‚ calcium
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Chem Med Case 1 Chem-Med Company 1. What was Chem-Med ’s rate of sales growth in 2003? What is it forecasted to be in 2004‚ 2005‚ and 2006? Sales Growth = (Sales this year - Sales last year)/Sales last year for 2003: ($ 3‚814 - $3‚051) / $3‚051 = + 25% for 2004: ($ 5‚340 - $3‚814) / $3‚814 = + 40% for 2005: ($ 7‚475 - $5‚340) / $5‚340 = + 40% for 2006: ($ 10‚466 - $7‚475) / $7‚475 = + 40% 2. What is the company ’s rate of net income growth in 2004‚2005‚ and 2006? Is projected net income
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Tashia & Tobi Lab Report experiemt 5 INTRODUCTION In this experiment we were wanting to find the specific heat of an unknown metal and determining what metal it was by using the formula q=c X m X change of temperature. We did two trials to compare the two and see what we come up with. EXPERIMENTAL First we chose an unknown metal‚ in which our unknown was unknown metal 2‚ the metal was gray and irregular shaped. We setup the calorimeter and got a mass of it just being empty then we got
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enthalpy of combustion‚∆Hc ‚ ofpropan-1-ol‚ C3H7OH C3H7OH(l) + 4 O2(g) → 3CO2(g) + 4H2O(l) [3] d) State how you would expect the value obtained in part (c) to differ if gaseous water‚ rather than liquid water‚ is formed. [1] e) In an experiment 0.92 g of propan-1-ol‚ C3H7OH‚ was burned and the heat given off used to raise the temperature of 250 g of water. The temperature rise was 16 °C. The specific heat capacity of water is 4.2 JK–1 g–1. Calculate a value for the enthalpy of
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e-mail: knight_BeNcH66@yahoo.com Abstract Chromatography is a powerful technique for separating and/or identifying the components in a mixture. There are different types of chromatography and each has its own strengths and weaknesses. In this experiment‚ pigments of the chili pepper were extracted with the use of hexane‚ hexane-DCM‚ DCM‚ and DCM with methanol; then‚ the extract was introduced into the column and eluate were collected‚ this process is the column chromatography (CC). The purity of
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