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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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Questions
Q: What important information does the nucleus contain
2 answers
Q: How many different elements are in potassium and nitrate
1 answer
Q: How many grams of ammonium chloride can dissolve in 100g of water at 50 c
1 answer
Q: What equipment would be used to separate a mixture of salt and water
2 answers
Q: How many grams of H2O do you need to weigh out to have 1 mole of H2O
2 answers
Q: What do men burn to put carbon from fossil fuels back into the carbon oxygen cycle
1 answer
Q: Would a larger mammal have a lower affinity for oxygen
1 answer
Q: Why is this important that the labels included in speiciemen jars made of speicial paper that does not disintegrate in alcohol over time
1 answer
Q: What converts gaseous nitrogen into ammonia in the nitrogen cycle
1 answer
Q: What substance is an example of an elemental molecule
4 answers
Q: What happens when an ionic bond is formed
1 answer
Q: What statement best describe the strength of ionic and covalent bonds
1 answer
Q: Why is it necessary to determine if a reactant is limiting reagent in reaction
2 answers
Q: Which functional group is within the compound shown below r-oh
8 answers
Q: Which shows the general structure of an ether
4 answers
Q: Does the steepness of con centration gradient affect the rate of difussion
1 answer
Q: How is the way a mixture is combined different from how a compound is formed
5 answers
Q: What is a bikini wax
2 answers
Q: What is a bile salt
2 answers
Q: What can you use citric acid for
1 answer
Q: What is the reaction between sodium thiosulphate and FeCl3
1 answer
Q: What protein catalyst facilitates chemical reactions
1 answer
Q: What temperature Fahrenheit is equal to 3 degrees Celsius
3 answers
Q: What are the reactants in sodium metals reacting with hydrochloric acid to produce salt and hydrogen gas
1 answer
Q: Does the word chocolate have an omitted syllable
2 answers
Q: What is the current level of atmospheric oxygen on earth
1 answer
Q: What can be separated by a chemical change
8 answers
Q: What color will you get if I mix off white and green
1 answer
Q: Can carbonic acid be broken down into two elements
2 answers
Q: What color will I get if I mix off white and red
1 answer
Q: Is semen acidic
1 answer
Q: How can you determine the sign and value of the charge on a polyatomic ion
1 answer
Q: How many grams of ca(no3) are needed to make a 250 ml of 0.50M solution
1 answer
Q: What nerve agent that is the most persistent is very oily and will stay active in an area for several days
1 answer
Q: Is ammonium sulfate insoluble in water
2 answers
Q: What are three key characteristics of a good medicine
1 answer
Q: Is Fe(NO3)2 soluble
6 answers
Q: Why was there opposition to the use of carbolic acid as an antiseptic
1 answer
Q: How many atoms of tin are in 119 g of tin
2 answers
Q: What is the equation for phenol and dilute nitric acid
1 answer
Q: Is water a physical or chemical change
2 answers
Q: What is stable atoms
9 answers
Q: What is the name of the compound made from lithium and chlorine
3 answers
Q: What colour does dark brown and white make
1 answer
Q: Is it dangerous for the oxygen regulator to point towards the ceiling
1 answer
Q: What is on the outer part of the atom
3 answers
Q: What is the difference between the plim pudding model and the nuclear model
3 answers
Q: What is the chemical name for sodium and oxygen
1 answer
Q: What is elements are present for most ionic compounds
1 answer
Q: How many ions are in HCl
1 answer
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