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Chemistry

Delve into the study of matter, its properties, composition, structure, and the changes it undergoes during chemical reactions. Chemistry is the central science connecting other scientific disciplines.

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Q: We get this oxygen from the what that we breathe
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Q: What Reactants and products of aerobic respiration
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Q: The element named after Thor
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Q: What is the chemical name for Mo(C2H3O2)
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Q: Why pH is relevant to an enzyme and function
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Q: NaCl and NaOH are chemical symbols or formulas
1 answer
Q: The number of valence shells are responsible for the makeup of the chemical properties of elemments
6 answers
Q: What happens when sodium ionizes
1 answer
Q: Propane specific gravity
2 answers
Q: The graph below shows how two different enzymes react with a substrate as the temperature increases. Based on the results what conclusion can be drawn about the action of the enzymes as
4 answers
Q: Lighting a match a physical change or chemical change
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Q: What happens when a acid is placed on a piece of metal
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Q: A solution contains 72.0 g of HCl and 468 g of (C6H6). What is the mole fraction of benzene
1 answer
Q: Plants make their own food. The chemical reaction for this process is shown in the equation below. CO2 plus H2O plus energy C6H12O6 plus O2 What are the products in this chemical reaction
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Q: How many molecules are present in 1296 g of dinitrogen pentoxide (N2O5)
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Q: What are two similarities and two differences between Cl and CI-
1 answer
Q: What is the empirical formula of a phosphoric acid that contains 0.3086 g of hydrogen 3.161 g of phosphorus and 6.531 g of oxygen
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Q: An experiment testing the hypothesis that nitrogen markers shoot farther than carbon dioxide markers resulted in conflicting test results. The researchers rejected their hypothesis. What should they d
2 answers
Q: When a candle is put under a tumbler why its flame goes after some times
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Q: The elements known as the alkali metals are found in Group
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Q: If you try to cook an egg boiling water while camping at elevation pf 0.5 km in the mountainyou will find that it takes longer than it does at home .Explain why
2 answers
Q: How many covalent bonds join the atoms in a molecule of ammonia
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Q: Complete combustion definition
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Q: Potassium plus iron oxide equation
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Q: Evaluate Hershey and Chases's decision to use radioactive phosperus and sulfur for their experiments. Could they have used carbon or oxygen instead why or why not
1 answer
Q: What describes the usual way by which material can gain a positive charge
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Q: The pricious gem ruby is mainly aluminium trioxide with trace amount of
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Q: What is the difference between the melting point of stearic acid and oleic acid
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Q: Difference between aqueous ammonia and ammonium hydroxide
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Q: Is ionization a physical change or chemical change
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Q: La arena se disuelve en vinagre
1 answer
Q: Is sodium hydroxide in cement
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Q: Can you put a penic in another penic
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Q: Explain bond formation in CH4 -ciass 9 for HM
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Q: Is iodine a conductor
2 answers
Q: What uses symbols to show chemical reactions
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Q: What is the definition of percent composition
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Q: Does an acidic solution contain hydroxide ions
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Q: List the 3 scenarios for a substance being classified as a weak acid
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Q: How many labels are needed on a package of nitric oxide compressed
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Q: Two elements that have properties similar to those of chlorine are
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Q: What is the state of matter at 150 degrees Celsius
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Q: A metallic taste in the mouth epigastric distress and possible nausea and vomiting are ingeston symptoms for which chemical agent
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Q: Place these unknown pH test papers in order from most acidic to most alkaline.
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Q: How many hours does a chemist work per day
2 answers
Q: Why when you heat up copper sulphate does it turn blue
2 answers
Q: 8 parts bleach to 10 parts water so if you have 15 parts water how much bleach would you need
2 answers
Q: 4. If a pure silicon crystal has 500000 holes inside it how many free electrons does it have
2 answers
Q: What is the difference between melting and evaporation
1 answer
Q: Which answer lists the substances in order from greatest energy of particles to least energy of particles
2 answers
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