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Chemistry
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.
221k
Questions
Q: When human burn fossil fuels most of the carbon quickly enters the blank as carbon dioxide
1 answer
Q: If an element has a mass number of 244 and an atomic number of 94 how many neutrons does the element have
2 answers
Q: What is the precipitate from silver nitrate and ammonium chloride
1 answer
Q: Where is the energy on a glucose molecule stored
2 answers
Q: What Molecules that make up a plastic two-liter bottle
1 answer
Q: Is cocoa covalent
1 answer
Q: Is silly string poisonous
1 answer
Q: Where does the ash go from burning the coal
1 answer
Q: What is the definition of unsaturated organic compound
1 answer
Q: What is the definition of unsaturated hydrocarbon
2 answers
Q: How is carbon sulfur dioxide made
1 answer
Q: What are 3 things that nitrogen is used for and not used for
2 answers
Q: Is nitrogen a good conductor or poor conductor of heat and electricity
1 answer
Q: What is element management
1 answer
Q: What would happen to a gold ring dropped into a solution of copper nitrate
1 answer
Q: What color does phenolphthalein turn in acetic acid
1 answer
Q: How prepare 0.1 N oxalic acid
1 answer
Q: What is the initial colour of an iodine solution
1 answer
Q: What happens to amylase at 0 degrees Celsius
1 answer
Q: Is silicon dioxide a molecule or a lattice
1 answer
Q: How many molecules of H2O and CO2 can be made from 4 molecules of CH4 and excess O2
2 answers
Q: What are energy rich compounds such as starch and glucose
2 answers
Q: What energy is stored in a molecule bond
1 answer
Q: What is reaction to acid
1 answer
Q: What is the solvent of sprite
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Q: What type of bond does trifluoromethane have
1 answer
Q: What is H2SO4(aq)
2 answers
Q: How can the student make a quantitative observation of the CO2 collected in the balloons
1 answer
Q: What is the reaction of Scoria rock with vinegar
1 answer
Q: What is the complete ionic reaction for lithium chloride mixed with aqueous ammonia
1 answer
Q: What is the colour change for copper(ii)sulfate and silver nitrate
2 answers
Q: What is the period Einsteinium
1 answer
Q: Is polystyrene a covalent bond
1 answer
Q: How many atoms do NaHCO3 have
1 answer
Q: Is hand lotion a solution or a mixture
4 answers
Q: How can you use a sentence with the words mind and mined
2 answers
Q: Is it easier to smash a full can of soda or a empty can of soda
2 answers
Q: How many does one thousand grams of seawater does dissolved substances consist of
1 answer
Q: How many moles of MgSiO3 are in 215 g of the compound
2 answers
Q: How many grams of dissolved substances is One thousand grams of seawater
1 answer
Q: Which radioactive element has a half-life of 4.5 billion years
2 answers
Q: Which is more active silver or copper
1 answer
Q: What color test tube for TPO
1 answer
Q: What Terms like cool or warm refer to a colors what
1 answer
Q: Why did it take 2000 years for scientists to confirm some of Democritus ideas about atoms
2 answers
Q: Which metal will not be able to be oxidized by any of the other metals listed Apex
2 answers
Q: What are the period 4 representative elements
4 answers
Q: What is a solution called that has more OH-ions H plus ions
4 answers
Q: How do you separate clear diamonds and clear plastic imitations
1 answer
Q: How does charcoal clean water
1 answer
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