!HELP! PLEASE HELP!!!!Compare what happens when NaCl and HCl are added to water. (Hint: They will both dissolve but they will do so differently. Pay close attention to the type of compounds they are.)

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Chemistry

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3. List the three main parts of an atom and their electrical charges.

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Chemistry

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HELP HURRRRYYY Which of the following chemical equations is unbalanced? A. CH4 + 2O2 CO2 + 2H2O B. 3Mg + Mn2O3 3MgO + Mn C. AgNO3 + LiOH AgOH + LiNO3 D. 2NaOH + H2SO4 Na2SO4 + 2H2O

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Chemistry

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Why is it important to study chemical reactions in closed containers

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Chemistry

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What is the law of conservation of mass? how is it related to balancing chemical equations

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Chemistry

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How many moles of MgCl2 are there in 335 g of the compound?

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Chemistry

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What does the concentration of a solution refer to? In what 3 ways can concentration be expressed?

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Chemistry

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Joel has noticed that his engine is not compressing properly during the compression and ignition step. What problem will this pose?

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Chemistry

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Which will cause an increase in the reaction rate between molecules? A. Molecules have strong internal bonding. B. Molecules collide more frequently. C. Electrons in the bonds remain in a meta-stable state. D. Electrons do not have enough energy to leave the bonds.

Asked By administrator @ 26/09/2019 08:53 AM

Chemistry

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How much CO2 is produced from the decomposition of 200g of CaCO3 if 112 of CaO are produced?

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Chemistry

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The hydroxide ion concentration in pure water at 25ºC is NOT equal to A.the hydronium ion concentration. B.1 X 10^-7 M. C.the hydroxide concentration in a solution with a pH of 7. D.1 X 10^7 M.

Asked By administrator @ 26/09/2019 08:52 AM

Chemistry

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What does the concentration of a solution refer to? In what 3 ways can concentration be expressed?

Asked By administrator @ 26/09/2019 08:52 AM

Chemistry

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Acetic acid ionizes only partially in solution. What type of acid is acetic acid?

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Chemistry

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What is a non-polar molecule

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Chemistry

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The kinetic energy of all the particles in a given sample of matter is the same?true or false

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Chemistry

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How many moles are in 22 grams of Argon

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Chemistry

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The last element in any period always has: A.two electrons in the outermost energy level B.its outer energy level completed C.the properties of an inert gas D.the lowest atomic weight because it is a gas

Asked By administrator @ 26/09/2019 08:47 AM

Chemistry

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Jeff conducted simple experiment on the effect of rising temperature on food. He concluded that while heat is useful for cooking food, it can lead to food spoilage if food is left outside in hot weather. He presented his results to his science class. How should the teacher and students respond if they are skeptical? (A) accept Jeff results as true.(B)reject jeffs conclusion.(C)repeat the experiment themselves.(C)be indifferent to jeffs conclusion.(D)ask Jeff to stop experimenting with food.

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Chemistry

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____ is the transfer of energy in the form of rays or waves. a. Conduction c. Radiation b. Convection d. Condensation

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Chemistry

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Which half-reaction is most easily oxidized?

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Chemistry

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Substance tha have excess hydroxide ions (OH-) are

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Chemistry

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Periodicity is best defined as: A. the fact that elements increase in atomic mass in a regular way B.the repeating nature of physical and chemical properties with atomic number C.the regular growth of atomic size with atomic mass D.the consistent decrease of nuclear charge with atomic mass E.the repeating nature of atomic nuclear structure

Asked By administrator @ 26/09/2019 08:42 AM

Chemistry

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How many moles of N₂ are essential for generating 0.08 moles of Li₃N in the given reaction? 6Li + N₂ 2Li₃N 0.013 moles 0.04 moles 0.08 moles 0.16 moles 0.48 moles

Asked By administrator @ 26/09/2019 08:42 AM

Chemistry

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How is each of the lizards adapted to its environment?

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Chemistry

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Which type of biochemical is shown in the diagram? polysaccharide nucleic acid lipid dipeptide

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Chemistry

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!HELP! PLEASE HELP!!!!Compare what happens when NaCl and HCl are added to water. (Hint: They will both dissolve but they will do so differently. Pay close attention to the type of compounds they are.)

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