Chemistry

how does the sun light affect earths climate
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How much NaOH (in grams) is needed to prepare 463 mL of solution with a pH of 10.020?
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An empty weighing dish has a mass of 1.0041 0.0002 g. After you add dried sodium chloride to the dish, the mass is 3.2933 0.0002 g. You quantitatively transfer the sodium chloride into a 500.00 0.05 mL volumetric flask and dilute to the mark with deionized water. The molar mass of sodium chloride is 58.440 g/mol. What is the absolute error in the concentration of the resulting solution? Report your answer normally to the correct number of significant figures with the correct unit.
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Please help(15 points)Why arent granite, copper, or petroleum found everywhere on Earths surface?
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5. How is a cell wall different from a cell membrane?
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In DEF, the measure of F=90, FE = 16, DF = 63, and ED = 65. What ratio represents the tangent of E?
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What is the meaning of the red moon??
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Write the beta decay equation for the following isotope: 15/6 C?
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Which of the following is the correct definition of conduction? A. the transmission of heat across empty space B. the electromagnetic radiation from the surface of an object which is due to the object's temperature C. the transfer of heat by currents within a liquid or gas D. the transmission of heat across matter
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Unlike an acid, an aqueous solution of a base A) causes some indicators to change color B) conducts electricity C) contains more H+ ions than OH ions D) contains more OH ions than H+ ions
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Which element easily loses one electron to form a positive ion? A. Magnesium (Mg) B. Lithium (Li) C. Nitrogen (N) D. Fluorine (F)
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Use the drop-down menus to select the correct answers to complete the paragraph.The building blocks of matter are called . A substance made up of the same kind of atoms is called a(n) . elements lose particles. This makes them .
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Can someone help me with this?
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When will the simping end
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please helppppppppppSelect the TRUE statements about the carbon cycleThe carbon cycle is the process in which carbon travels from the atmosphere into organisms and the Earth and then back into the atmosphere.Plants take carbon dioxide from the air and use it to make food.Animals eat food and the carbon is stored in their bodies or released during cellular respiration.Water (H2O) is cycled around the Earth
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What is the correct answer? Please
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mention two instruments that could be used to transfer sodium hydroxide solution into conical flask
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_______ occurs when a bodys molecular wavelength sends vibrations to another body, resulting in the production of another sound wave
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What is the molarity of a 50.0 ml aqueous solution containing 10.0 grams of table sal, Nacl?
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How many moles of O2 are needed to react completely with 35.0 mol of 10 pointsFeCl3? *4FeCl3 + 302 2Fe2O3 + 3Cl2A) 26.3 molB) 46.7 molC) 23.3 molD) 10.0 mol
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Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at right). This makes it easy to isolate and measure the amount of gas produced. Wala Suppose the H, gas evolved by a certain chemical reaction taking place at 40.0 C is collected over water, using an apparatus something like that in the sketch, and the final volume of gas in the collection tube is measured to be 80.0 mL. Sketch of a gas-collection apparatus Calculate the mass of H, that is in the collection tube. Round your answer to 2 significant digits. You can make any normal and reasonable assumption about the reaction conditions and the nature of the gases. XS?
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Argon-40 undergoes positron emission as shown:48 Ar X+ IBEnter the appropriate values for A and Z and the chemicalsymbol for X
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What is the specific heat capacity for a 5 g sample of metal that absorbs100 Joules of heat energy when its temperature changes from 10 degreesC to 40 degrees C?*A) 15, 000 J/gCB) 2 J/goC)0.67 J/gCD) 0.50 J/go
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The mole concept will most likely be used in
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