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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: Why does sodium become stable by losing one electron
1 answer
Q: What is the concentration of a phosphoric acid solution of a 25.00 mL sample if the acid requires 42.24 mL of 0.135 M NaOH for neutralization
1 answer
Q: What is absorb in a sentence
1 answer
Q: Do Fish give off the compound ammonia which has pH above 7. To which class of compounds does ammonia belong
3 answers
Q: Why does molecules appear in boldface
2 answers
Q: What are two chemical reactions that require energy in order to occur
4 answers
Q: Is Bal2 a covalent compound
1 answer
Q: What color pH paper will turn in Tonic water
1 answer
Q: What is nitrogen a major componet of
1 answer
Q: How can the student make quantitative observations of the CO2 collected in the balloons
1 answer
Q: When energy is absorbed or released is it chemical or physical change
2 answers
Q: How many atoms of each element make up 2 CoCl2(aq)
3 answers
Q: Is NaO a ionic compound
1 answer
Q: What is the chemical formula for phosphonic acid
4 answers
Q: If an atom of germanium has a mass number of 70 and an atomic number of 32 how many neutrons are in the nucleus
7 answers
Q: What outcome results when a liquid is heated
2 answers
Q: What are the special proteins that can break large molecules into small molecules
2 answers
Q: What breaks fats into fatty acids and glycerol
1 answer
Q: Is heavy water radioactive
1 answer
Q: What 9 letter word is solid changing to a gas
1 answer
Q: What USB connector types is reversible
2 answers
Q: What is the different between firewood and coal
1 answer
Q: What is the correct equilibrium expression for the dissolution of calcium phosphate Ca3(PO4) water
2 answers
Q: HOW do temperature of ocean water affect oxygen levels in water
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Q: Why does the color of iced tea changes when ice melts
1 answer
Q: What compounds is known as acetic acid
1 answer
Q: What do you notice of the two molicules
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Q: What happens when you light petroleum and bleach
1 answer
Q: Why is the carbon dioxide molecule straight
1 answer
Q: What describes testing a substance for flammability
1 answer
Q: Is carbon tetrahydride Molecular or ionic
1 answer
Q: What indoor pollutant is colorless odorless gas that forms when wood coal oil or gas are incompletely burned
2 answers
Q: How iron ii sulphate reacts with hydrochloric
1 answer
Q: What material can cope with 300 degrees in a fire
1 answer
Q: What is the virtue of the same element existing in nature in more than one crystal form
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Q: Is dissolving glucose in water endothermic reaction
3 answers
Q: How much natural gas is required to produce a ton of ammonia
1 answer
Q: How many significant figures does 2370.0 have
4 answers
Q: What is condensation explain on a molecular level
1 answer
Q: What is a 110 pound (net weight) package of aluminum phosphide is regulated as what
2 answers
Q: Why do ionic compounds dissolves in water
3 answers
Q: In terms of chemical bonds and electrons what kinds of changes occur between atoms when substances undergo chemical reactions
2 answers
Q: How many argon (Ar) atoms are there in 1.5 x 102 g if argon
1 answer
Q: Is CsOH a molecular compound or ionic
2 answers
Q: Will the pH increase decrease or remain the same if the concentration of weak bases increases
1 answer
Q: What is the mass of aluminum metal that reacts to give 1.5 g of hydrogen gas 2 Al(s) plus 6 HCl(aq) 2 AlCl3(aq) plus 3 H2(g)
1 answer
Q: How does the temperature of the freezing point of lauric acid compare with the melting point temperature of the same substance as indicated on the graph
2 answers
Q: How have chemists improved on natural glues and adhesives
1 answer
Q: What is the chemical equation of acetaldehyde and Tollen's reagent
8 answers
Q: Is NaBrO4 acid or base
2 answers
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