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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 does RSC stamp on a ring mean
1 answer
Q: Which of the folowing is a chemical change A. you melt butter B.you make cookies C.you make a pitcher of orange juice from concentrate D.you blow up a balloon
5 answers
Q: Why does baking soda put a fire out
1 answer
Q: What are examples of molecules formed by two elements
2 answers
Q: What is the dependant variable in how much gas does your favorite beverage produce
2 answers
Q: Is nitrogen oxide acidic or basic
1 answer
Q: What insoluble salt is made by copper sulfate and lead nitrate
1 answer
Q: What is the difference between atom element compound
2 answers
Q: Which property can most easily distinguish chlorine from the other gases
2 answers
Q: Why is it difficult to smell something with blocked nose
2 answers
Q: Why sodium hydroxide and hydrochloric acid were added in extraction and write the equations
1 answer
Q: What is about water molecules that helps explain why the water drops were difficult to split apart but easy to join together
1 answer
Q: Is malleability an example of physical properties or chemical properties
2 answers
Q: What is the charge of chlorine
2 answers
Q: What is the balanced symbol equation for potassium and chlorine
1 answer
Q: What substance can a student use to make the nuclei of this organism more visible by compound light microscope
1 answer
Q: Why does simple diffusion end
4 answers
Q: What colour is Lithium iodide solution
1 answer
Q: When was slime first invented
2 answers
Q: Is garbage a homogeneous or heterogeneous mixture
4 answers
Q: Why should you tie up long hair in a science lab
2 answers
Q: What colour will methyl orange turn in vinegar
3 answers
Q: What is the appearance of Sodium before and after cutting
1 answer
Q: Which aqueous ion causes a white precipitate to form when acidified aqueous silver nitrate is added to it
1 answer
Q: Is concentrated sulphuric acid toxic
1 answer
Q: What is a negative connotation for the word aroma
1 answer
Q: What type of bond is found in an copper wire
1 answer
Q: How many neutrons are there in one atom of 47 Ti
5 answers
Q: Why do a pair of metal scissors appear shiny
4 answers
Q: Potassium (K) has an atomic number of 19. It often forms an ion by losing 1 electron. What charge would the ion have
4 answers
Q: What is BUN in the metabolic panel
1 answer
Q: Why is a basic understanding of chemistry important in nail technology
1 answer
Q: What does tungsten weigh per cubic inch
1 answer
Q: What is the ionic charge of sodium
2 answers
Q: What is Aristotle four elements
1 answer
Q: How many atoms dose nh4 have
2 answers
Q: What state symbol is carbon dioxide
1 answer
Q: How is an elements most likely oxidation state related to its valence elections
1 answer
Q: Chemical reactions involve changes in what chemical that join atoms compounds
2 answers
Q: How much is Mg of borax teaspoons
1 answer
Q: What is the most stable ion of Ca
1 answer
Q: Does a substance gain o lose thermal energy when it evaporates
1 answer
Q: What is the aqueous solution of ammonium phosphate and iron (ii) chloride
2 answers
Q: Why k3fecn6 used as an external indicator
1 answer
Q: Is Ba(ClO4)2 ionic covalent or both
1 answer
Q: What colour is bromothymol blue at the 5 pH level
1 answer
Q: Is NAI ionic
1 answer
Q: What happens when the electrons relax
2 answers
Q: What trends were first used to classify the elements
1 answer
Q: How many covalent bonds are there between the two carbon atoms in butadiene
2 answers
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