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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: What kind of substance produces hydrogen gas when it reacts with some metals
1 answer
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
2 answers
Q: How many chlorine ions are required to bond with aluminum ion
1 answer
Q: What is a lava lamp circulating lava inside itself
2 answers
Q: What is a glucose polymer that also serves as an energy storing polysaccharide
1 answer
Q: How many years for foam to decompose
1 answer
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
3 answers
Q: What is the mass of 0.25 mole of aluminum sulfate
1 answer
Q: What is the action of sodium chloride on 0.1 bromothymol blue
2 answers
Q: What is the state of matters of polythene
2 answers
Q: What gases produced by burning fossil fuels usually contain element
1 answer
Q: How can a substance react with acids
1 answer
Q: What is the equation for aqueous potassium iodide reacts with lead nitrate in solution forming solid lead iodide
2 answers
Q: Who was the first scientist to use liquid propellants
1 answer
Q: What occurs when potassium reacts with chlorine to form potassium chloride
1 answer
Q: Is ammonia cleaning fluid a acid or alkali
1 answer
Q: What are 2 chemical properties of soil
1 answer
Q: What is the compound B2Br3
1 answer
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
1 answer
Q: What is the most stable monatomic ion formed from aluminum
4 answers
Q: What has a fixed position
2 answers
Q: How does wax burn
2 answers
Q: How do you calculate the percentage of mass lost for bicarbonates
1 answer
Q: What can gallium create
2 answers
Q: What is the Boiling point of water at 1800 m above sea level
1 answer
Q: What are the chemical protective overcoat and trousers when worn together called
2 answers
Q: What substance react with hydrochloric acid to produce chlorine gas
1 answer
Q: Can tungsten dissolve
2 answers
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
1 answer
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
2 answers
Q: How many grams of LiOH is formed from 25.0 g of CaOH given the following equation... Ca(OH)2 plus Li2CO3 ----- and gt CaCO3 plus 2Li(OH) What is the answer and how did you get it
2 answers
Q: How many atoms of LiBr would you have if you start with 1.25 moles What is the answer and how did you get it
2 answers
Q: What element of a work best determines if the work is sarcastic or not
2 answers
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