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🧪 Chemistry

Chemistry is the scientific study of the properties and behavior of matter. It is a natural science that covers the elements that make up matter to the compounds composed of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during a reaction with other substances.

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Q: What is the function of a prism
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Q: What is the answer to 6.02 x 10 to the 23rd
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Q: Where does the Krebs cycle occurs
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Q: When two substances are put in the same container they do not attract each other why do this happen
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Q: What kind of solid tends to have the solid lowest melting points
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Q: Which daughter element is produced from the beta decay of
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Q: A chemical reaction that absorbs energy is called what
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Q: Electron configurations is most likely to result in an element that is relatively inactive
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Q: What atoms should be balanced last when balancing hydrocarbon combustion reaction
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Q: 16 Why is the state of matter a physical property and not a chemical property
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Q: What kind of reaction occurs when a substance is broken down into two or more simpler substances in a chemical reaction
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Q: What kind of compound increases the hydrogen ion concentration in the solution
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Q: What is a cathode
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Q: What is the oxidation state of CI in HCIO2
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Q: What does reaction rate measure
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Q: What is the heat of fusion for water is the amount of energy that must be absorbed for water to
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Q: What happens at the cathode in the electrolytic cell
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Q: Is sucrose a hydrolysis reaction or a condensation reaction
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Q: What is and acid and base indicate
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Q: What is the IUPAC name for ch3-ch equals ch-ch3
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Q: What is the name of the particle that circles the nucleus of atom
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Q: Two planes are flying at the speed of sound Plane X is flying at an altitude of 6000 feet and plane Y is flying at an altitude of 15000 feet which is flying faster
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Q: Of the bonds C single bond N C double bond N and C triple bond N the C-N bond is
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Q: What attractive force holds two hydrogen atoms and one oxygen atom together to make water
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Q: Molybdenum-99 has half a half-life of 66 hours. after 132 hours how much of an initial sample of 10 ci of mo-99 would remain
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Q: Do buffers react to acids and bases to keep pH in a
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Q: Is sulphur an element or a compound or a homogeneous mixture or a heterogeneous mixture
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Q: What does the third quantum number (ml) describe
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Q: The Modern Periodic Law states that there will be a periodic repetition of properties when the elements are arranged according to increasing atomic
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Q: The hot expanding gases generated by the combustion reaction in the engines are
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Q: Radioactive decay occurs when in at least part of the nucleus the electrostatic force overcomes the force
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Q: Can you use flame test to identify element
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Q: Indicate the most common charge of elements in the periodic table
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Q: What does a mole represent
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Q: What is the c-14 c-12 ratio used to date once living organisms
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Q: What is a superconductor
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Q: In the reaction MgCI2 plus 2KOH Mg(OH)2 plus 2KCI if 6 moles mgci2 are added to 6 moles koh which is the limiting reagent
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Q: How many moles of gas can occupy a 5.0 L flask at 11 degrees Celsius and 5.9 ATM pressure
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Q: What was alchemy's contribution to identifying elements
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Q: Reactions that use energy from their surroundings to break bonds are called
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Q: What kind of solid breaks with no regular pattern
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Q: Molecules which serve as chemicals to make reactions work- like the breakdown of food molecules
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Q: Repression is the process
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Q: What are atoms either a positive or negative charge called
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Q: What type of chemical reaction occurs when polymers are broken apart by water.
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Q: Can carbon monoxide be involved in the extraction of iron from hematite
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Q: What coefficent values will balance the reaction Cog plus o2g equals co2g
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Q: How do you determine the core electrons an atom has
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Q: What is the molarity of a solution of 1divided2 mol of Cu NO3 2 in 1divided2 L water
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Q: Did An English scientist created the first periodic table of elements
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