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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 is silicon and germanium used in semiconductors.pdf
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Q: How would you extract zinc
8 answers
Q: How many chloride ions are in calcium chloride
2 answers
Q: Is dettol an alkali
1 answer
Q: What gas do we breathe small amounts of it out
2 answers
Q: Is concrete a solid or gas
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Q: What colour does universal indicator turn in dilute hydrochloric acid
1 answer
Q: Where do the H plus and OH- ions come from
3 answers
Q: What is the Chinese meaning of mercury
2 answers
Q: How much would two moles of dinitrogen pentoxide weigh
3 answers
Q: Is a mixture of sulfur and water a suspension
2 answers
Q: Is Borax soap safe for your skin
1 answer
Q: What is the correct chemical name for N2O5
5 answers
Q: What is Cobalt (3) bromide chemical formula
1 answer
Q: What is the formula of Iron (11) nitrate
1 answer
Q: What is potassium CL
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Q: What if you put water in a dark colored container and a light color container which one will evaporate first
2 answers
Q: Why is oil sometimes referred to as liquid sunshine
1 answer
Q: What type of bond between N and N
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Q: In an experiment there are two groups what group does not change in any way
1 answer
Q: What does pjm cz stamp on a ring mean without 925
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Q: What is the volume in liters of 0.75 mol of methane gas (CH4)
2 answers
Q: Is ipratopium bromide a steroid
1 answer
Q: What is the viscosity of slag of blast furnace
1 answer
Q: Why is a lava lamp an exeample of pure substance
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Q: How long does it take for brass to decompose
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Q: What rhythm strip change when give potassium
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Q: What should you if you suddenly find find yourself in cold water
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Q: What Shows all the elements which make up matter
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Q: What is the atomic number of paper
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Q: What kind of bond is gallium bromide
4 answers
Q: If 5.433 g of aluminum is burned with 8.834 g of oxygen gas what is the limiting reactant
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Q: What is thermometric substance
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Q: What is thermosphile
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Q: Why is mercury suitable
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Q: What is the Formula of the colored precipitate obtained in the sulfur test or lead acetate test
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Q: Is water made up of molecules
2 answers
Q: Why is H3PO2 monoprotic
1 answer
Q: What 2 conditions that density has to meet in order for it to be used to identify a mystery substance
1 answer
Q: How do you make Slime with fabric softener
1 answer
Q: Why does density of a substance remain the same for different amounts of the substance
2 answers
Q: How At 60 c how much more sodium chloride than sodium chloride will dissolve in 100 ml of water
1 answer
Q: How come moisture mentioned in SEA J2099 standards of refrigerant purity
1 answer
Q: Is Cu2Oan ionic convalent compound
1 answer
Q: What element has 1 protons 1 neutrons and 2 electrons
7 answers
Q: What Peptide bonds form between the
1 answer
Q: What class of fire involves the burning of wood and paper
1 answer
Q: What is is the trend across a period
2 answers
Q: Is a gold bracelet a element compound or mixture
1 answer
Q: If samples of lead and silver each had volumes to 1 cm which would have greater mass
1 answer
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