Chemistry

High levels of carbon dioxide in the blood trigger which of the following responses in the body? Select one: a decrease in the production of sweat a decrease in the speed of the pulse an increase in the rate of breathing an increase in the rate of digestion
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g A chemistry student needs of thiophene for an experiment. She has available of a w/w solution of thiophene in benzene. Calculate the mass of solution the student should use. If there's not enough solution, press the "No solution" button. Round your answer to significant digits.
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1. In which order does food travel through the digestivesystem after it is swallowed?A. trachea, stomach, large intestine, small intestineB. esophagus, stomach, small intestine, large intestineC. stomach, esophagus, large intestine, small intestineD. trachea, stomach, small intestine, large intestine Hurry!!
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mutations that neither benefit nor harm the organism have (blank) effect on the organisms survival
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Which hydrocarbon belongs to the Alkyne homologous series? (A) CHCH (B) CH2CH2 (C) CH3CH3(D) CH3CH2CH2CH3
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If we start with 1.000 g of strontium-90, 0.908 g will remain after 4.00 yr This means that half-life of strontium-90 is _________ yr.A) 3.05B) 4.40C) 28.8D) 3.63E) 41.6
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Rate Law & Reaction Kinetics Chemistry 11 Chapter 17 1. For the reaction 3 ClO - (aq) ClO - 3(aq) + 2 Cl - (aq) doubling the concentration of ClO - quadruples the initial rate of formation of ClO - 3 . What is the rate expression for the reaction? 2. The reaction C 6 H 5 N 2 Cl (aq) + H 2 O (l) C 6 H 5 OH (aq) + N 2(g) + HCl (aq) is first order in C 6 H 5 N 2 Cl and zero order in H 2 O. What is the rate expression? 3. For the reaction H 3 PO 4(aq) + 3I - (aq) + 2H + (aq) H 3 PO 3(aq) + I - 3(aq) + H 2 O (l) the rate expression under certain conditions is R = k[H 3 PO 4 ][I - ][H + ] 2 . What method(s) could be used if you want to double the reaction rate? 4. What is the overall order of reaction for each of the following: a) R = k[NO 2 ] 2 b) R = k c) R = k[H 2 ][Br 2 ] d) Rate = k[NO] 2 [O2]
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Ammonia gas occupies a volume of 2,725ml at a pressure of 701 kPa. What volume would it occupy at 101 kPa?a. 18913 mlb. 393 mLc. 2566 mld. 27.5 mL.
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A 0.223 mole sample of gas is held at 33.0 C and 2.00 atm, What's the volume of the gas? R = 0.0821 L atm / mol K answer soon il give brainiest.
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Why is wind named from where the wind is blowing from?
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What is the symbol for the entity that has 17 protons, 20 neutrons, and 18 electrons?
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Silver (1) oxide silver + oxygen gas
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What is the binding energy of a mole of nuclei with a mass defect of 0.00084kg/mol?
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Why does dew form on the outside of your glass filled with ice cold water?
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In CaSO4, the oxidation number of Ca isthat of S isand that of O is
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Covalent bonds tend to form between
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Using the equation below, calculate the approximate moles of oxygen gas (O2) required to completely react with 719.68 moles of aluminum (Al). 4Al (s) + 3O2(g) -----> 2Al2O3(s)
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2. Find out the enthalpy change of the CH4 from solid Carbon and Hydrogen gas. C (s)+ 2H2 (g)(CH4(g)(H( = ? Use the following three equations: C (s)+ O2 (g)(CO2(g)(H( = -393.5 kJ H2 (g)+1/2 O2 (g)(H2O(l)(H( = -285.8 kJ CH4 (g)+ 2O2 (g)( CO2(g)+ 2H2O(l)(H( = -890.3 kJ
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How many milliliters of 0.2 M NaOH are required to exactly neutralize 40 milliliters of 0.1 M HCl?A)10B)20C)40D)80
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If 8 moles of FeCl react with 8 moles of O2 what is the limiting reactant? 4FeCl3 + 3022Fe2O3 + 3Cl2A) FeCl3B) 02C) Fe203D) Cl2
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Which one is it? Please help
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When a chemical reaction occurs blank happens
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Which of the following are peninsulas in Southeast Asia?A.the Miramar Peninsula and the Tasmanian PeninsulaB.the Indochinese Peninsula and the Malay PeninsulaC.the Philippine Peninsula and the Vietnam PeninsulaD.the Irrawaddy Peninsula and the Mekong Peninsula
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Two liquids, A and B, have equal masses and equal initial temperatures. Each is heated for the same length of time over identical burners. Afterward, liquid A is hotter than liquid B. Which has the larger specific heat? Two liquids, A and B, have equal masses and equal initial temperatures. Each is heated for the same length of time over identical burners. Afterward, liquid A is hotter than liquid B. Which has the larger specific heat? Liquid A. There's not enough information to tell. Liquid B.
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