Chemistry

How many grams are there in 9.03 x 1023 molecules of CO2?
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______ occur between molecules that have permanent intramolecular differences in elecronegativity. A. Dipole-dipole interactionsB. Dispersion forces C. Hydrogen bonds
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The equivalence point in a titration refers to the point when A. the m of the acid equals the mL of the base.B. the molarity of the acid used in the reaction equals the molarity of the base used in the reaction.C. the number of moles of one reactant reacts completely with the moles of the other reactant.D. the acid in the flask turns clear.
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Increasing the amount of current flowing through a wire strengthenswhat?magnetic fieldelectromagnetismsolenoidO polarity
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3. Identify the 4 primary pigments found in plant leaves (name and color)
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What is the mole ratio of iron (III) chloride (FeCl3) to zinc chloride (ZnCl2) ?2 FeCl3 + 3 Zn 2 Fe + 3 ZnCl2a.2:2b.2:3c.3:3d.3:2
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Which compounds will most likely dissociate when dissolved in water? Select all that apply.
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what is the structure of methane
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Carbon is more stable element than Silicon. True or False?
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HELPPP ASAPPPUse the element tile below to calculate the molar mass of He2 (helium gas).2 g/mol16.012 g/mol8.006 g/mol4.003 g/mol
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1. The pressure of a gas is 100.0 kPa and its volume is 500.0 ml. If the volume increases to 1,000.0 ml, what is the new pressure of the gas?2. If a gas at 25.0 C occupies 3.60 liters at a pressure of 10 kPa, what will be its volume at a pressure of 25 kPa?3. When the pressure on a gas increases three times, by how much will the volume increase or decrease?4. Boyle's Law deals what quantities?
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When measuring the brightness of a star, what is a limitation of using apparent magnitude rather than absolute brightness?Apparent magnitude does not use the star's color or temperature.Apparent magnitude is only theoretical, thus its value cannot be directly measured with equipment.Apparent magnitude does not take into account the fact that not all stars are the same distance from Earth.Apparent magnitude is only on a comparative scale that determines how bright a star looks from a theoretical distance of 32 light-years from Earth.
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Which resulted from the study of chemistry?
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I guess this is free:)))): ((((
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when comparing ethanol and acetic acid, which one has the most polar bond? and what is that bond?
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Which materials allow electrons to flow through them?A. Insulators onlyB. Semiconductors and conductorsC. Conductors onlyD. Semiconductors and insulators
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How many particles are in one mole of copper (II) sulfate, CuSO4?
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The force that is pulling down on a person or object on the surface of the Earth iscalled (attraction of matter to matter)?normal forcemassweightgravity
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Determine the percent yield for the reaction between 46.5 g of ZnS and 13.3 g of oxygen if 18.l4 g of ZnO is recovered along with an unknown quantity of sulfur dioxide. please show work thank you
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PLEASE HELP ME QUICKLY! Imagine you are at your favorite beach. The sun is shining and you are enjoying the ocean breeze. The temperature is about 89F. You take your shoes off and realize that the sand is almost too hot to walk on. You run to the water's edge to wet your feet after the walk over the sand and realize that the water is almost too cold. Explain the temperature difference between the sand and water using Thermodynamics.
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Cell Walls are found in Prokaryotes and Plant cells. True O False
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The Earth has how many satellites?(i know this is not chemistry theres no science one)
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what kind of chemical reaction is this?
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The kinetic molecular theory, explains how particles in matter behave.TrueFalse
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