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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: What kind of substance produces hydrogen gas when it reacts with some metals
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Q: What is the element in period 4 with the smallest atomic radius
9 answers
Q: Why are gasoline and propane removed near the top of a distillation tower
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Q: How many chlorine ions are required to bond with aluminum ion
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Q: What is a lava lamp circulating lava inside itself
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Q: What is a glucose polymer that also serves as an energy storing polysaccharide
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Q: How many years for foam to decompose
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Q: Can you heat alcohol on an open flame
7 answers
Q: How many grams of Na2SO4 are required to make 350 ml of 0.5M
3 answers
Q: What are hydrocarbons with only a single bond called
6 answers
Q: What is the colour of cuprammonium sulfate
1 answer
Q: How many d electrons does Hg have
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Q: What is the mass of 0.25 mole of aluminum sulfate
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Q: What is the action of sodium chloride on 0.1 bromothymol blue
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Q: What is the state of matters of polythene
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Q: What gases produced by burning fossil fuels usually contain element
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Q: How can a substance react with acids
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Q: What is the equation for aqueous potassium iodide reacts with lead nitrate in solution forming solid lead iodide
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Q: Who was the first scientist to use liquid propellants
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Q: What occurs when potassium reacts with chlorine to form potassium chloride
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Q: Is ammonia cleaning fluid a acid or alkali
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Q: What are 2 chemical properties of soil
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Q: What is the compound B2Br3
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Q: How many ml of 0.1200 M NaOH is needed to titrate 0.5100 g KHP (MW 204.22 gmol) to the phenolphthalein end point
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Q: What is the most stable monatomic ion formed from aluminum
4 answers
Q: What has a fixed position
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Q: How does wax burn
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Q: How do you calculate the percentage of mass lost for bicarbonates
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Q: What can gallium create
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Q: What is the Boiling point of water at 1800 m above sea level
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Q: What are the chemical protective overcoat and trousers when worn together called
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Q: What substance react with hydrochloric acid to produce chlorine gas
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Q: Can tungsten dissolve
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Q: How many neutrons are in an isotope of chlorine 36
6 answers
Q: If you need to reverse the following reaction in order for it to be an intermediate reaction in a Hess's law problem what would be the final value for the enthalpy of rea
3 answers
Q: Why do scientists hypothesis that chemical events preceded the origin of life on earth
1 answer
Q: If an atom has 11 protons 12 neutrons and 11 electrons what is the identify of the element and it's mass number
5 answers
Q: What The double bond between carbon atom and two oxygen atoms has two characteristics what are they
10 answers
Q: What are some interesting facts about the element neon
1 answer
Q: When an atom gains or loses a valence electron it becomes a charged particle call a
9 answers
Q: Why does water form spherical shape on wax instead of spreading out flat
1 answer
Q: What do we call the solid being added to the liquid
2 answers
Q: In the compound potassium bromide determine the charge on the potassium ion and the charge on the bromide ion
1 answer
Q: What are majority of the elements made of
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Q: What are the majority of the elements made of
1 answer
Q: What melting points of ionic compounds
1 answer
Q: What did John Dalton atomic theory teach
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