Chemistry

What does these mean (thermal energy, convection, radiation and coundution)
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Which describes the molecule below?O A. A lipid with three saturated fatty acids B. A lipid with two unsaturated fatty acids and one saturated fattyacid C. A lipid with three unsaturated fatty acids D. A lipid with two saturated fatty acids and one unsaturated fattyacid
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A what is matter that is always composed of the same combination of atoms
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Which of the following could not be an empirical formula? a CaO b CO2 c KCl d C6H12
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Given the balanced equation below, how many moles of chromium areproduced? 2Cr2O3 + 3S1 --> 4Cr + SIO3O A. 1 moleB. 2 molesO C. 3 molesO D. 4 moles
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Balance this equation. Pb(NO3)2(aq)+NaCl(aq) -> NaNO3(aq)+PbCl2(s)
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Predict the product of the following Wittig reaction: You may want to draw out the reaction of a separate piece of paper before submitting your response. 2-butanone reacts with (C2H5O)2P=O--CHC.Hs with added heat in a potassium salt solution a) Potassium diethyl phosphate b) (z)-stilbene c) 2-methylbut-1-enyl-benzene d) 2-methylbutene diethyl phosphate
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When magnesium is added to hydrochloric acid, a gas is formed. Explain what happens in the reaction, how the gas is collected and how it could be tested to prove what it is.
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use ideas about particles and energy transfer to explain why sweat cools you down
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Which system is affected by the process of weathering?the hydrospherethe atmospherethe biospherethe geosphere
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How does shaking or stirring a mixture of solute and solvent affect a solution?CA. It increases the solubility of the solute.CB. It increases the rate of dissolving.C C. It decreases the solubility of the solute.D. it decreases the rate of dissolving.
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All molecular motion stops at 0 on this scaleGroup of answer choicesKelvinCelsiusFahrenheit
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5) Calculate the volume, in liters, of 3.24 x 1022 moleculesCI2
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the correct formula for the diagram is1. 2KO2. K2O3. K2O4. KOK2
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The molar mass of two equally sized samples of unknown gaseous compounds is shown in the table. Molar Mass Comparison Gas Molar Mass A 17 g/mol B 36.5 g/mol Which statement describes the density and diffusion of both gases at STP? Gas A has a higher density and diffuses faster than Gas B. Gas A has a higher density and diffuses slower than Gas B. Gas A has a lower density and diffuses faster than Gas B Gas A has a lower density and diffuses slower than Gas B.
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Giving brainliest for answers too ALL 3
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What are some potential traits that are needed to become a super athlete?
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pls help asap!!!!3 gasses are mixed together (N2, O2, and He). The gauge of the N2 states a pressure of 1.23 atm. The gauge on the O2 tank shows 2.3 atm. The Helium gauge is broken. When the gasses are mixed, the total pressure of the tank is 6.50 atm. What is the pressure of the He? a) 3.47 atm b) 2.97 atm c) 0.435 atm d) 10.03 atm
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What type of mixture is Mayonnaise?A. HomogeneousB. HeterogeneousC. CompoundD. Element
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Calculate the speed of a marble that rolls 9 cm in 4 seconds
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When an El Nio occurs, there is less wind in an area. This results in less upwelling, which in turn does not bring nutrient-rich, cold water to the surface. This has a negative impact on people who make their living from fishing. Lesson 2.12 Question 1 options: True False
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What are the number of atoms in each Chemical Formula
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While performing a blatant flop togain a foul called on the opposing team, LeBron James scrapes his knee and begins to bleed. His personal doctor bursts ontothe court with hydrogen peroxide (H2O2) in to clean up his wound. If the doctor applied 6.43 x 1029 molecules of hydrogen peroxide to the infected area, how many grams of hydrogen peroxide (H2O2) were used?A)3.14 g H2O2B)1.317 x 1055g H2O2C)3.63 x 107 g H2O2D)1.138 x 1052g H2O
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What is the volume of 3.5 moles of chlorine gas at standard temperature and pressure (STP)? (3 points)6.4 L22 L32L78 L
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