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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: An atom of aluminum (Al) has an atomic number of 13 and a mass number of 27. How many neutrons does it have
6 answers
Q: How do you prepare 7M sulfuric acid from concentrated sulfuric acid
1 answer
Q: Explain how you would separate a mixture of water sand salt and iron filings into its four component parts
1 answer
Q: Molecular formula of water using criss cross method
2 answers
Q: Nitrogen gas is inactive gas.why
1 answer
Q: Which substance when added to water makes the solution a good conductor of electricity
7 answers
Q: How would you prepare a 0.01M of phosphoric acid
1 answer
Q: Neon is an inert element.why
2 answers
Q: Nickel II chloride reacts with fluorine gas
1 answer
Q: Hydrochloric acid and potassium hydroxide react together in an aqueous solution. Which compound is a product of the reaction
3 answers
Q: What is the density of an object that has a mass of 30g and a volume of 10 ml
1 answer
Q: Is rust a form of corrosion
2 answers
Q: Which attractions are most prevalent between molecules of HF in the liquid phase
2 answers
Q: What is the name of the compound Hg3P2
2 answers
Q: Chemical that contain carbon and hydrogen are called
4 answers
Q: What ions would you expect to find when base dissolves the water
1 answer
Q: A chef fills a 50 mL container with 43.5 g of coking oil. what is the density of the oil
2 answers
Q: What do you input into the kettle
1 answer
Q: What is the mass of DCPIP powder needed to form 300 mL of 1percent DCPIP solution and all measurements in grams and millilitres
2 answers
Q: Chemical test to distinguish between 2 butanol and 3 pentanol
1 answer
Q: Is carbon dioxide dangerous to peoples health
2 answers
Q: Decomposition of hydrazine word equation
1 answer
Q: How do we get oxygen into our bodies
1 answer
Q: In the periodic table it lists chlorine what does the number 35.453 mean
2 answers
Q: Positively and negatively charged ions bind through ionic bonds to form crystals
1 answer
Q: Diamonds and graphite are examples of what solid
2 answers
Q: You label cells with a radioactive isotope of sulfur (35S). The only molecules that would be radioactively labeled in these cells are
1 answer
Q: These biological compounds are non-polar and insoluble in water
2 answers
Q: How can an acid produce hydrogen gas
2 answers
Q: What state is gold in at 2600 degrees celsius
1 answer
Q: Does chlorine water react with potassium chloride
1 answer
Q: Does iodine water react with potassium fluoride
2 answers
Q: Does bromine water react with potassium chloride
1 answer
Q: Definition of evapouration
1 answer
Q: How many elements are in CO 2
2 answers
Q: Why did my friend die after putting on oxygen mask
2 answers
Q: The solubility of ferric hydroxide would be maximum in
1 answer
Q: What property of metal does silver posses
1 answer
Q: How do you improve the colorimetry experiment
1 answer
Q: Is sodium metal a compound or element
1 answer
Q: When was the first disinfectant invented
1 answer
Q: What particle is free to drift in metals
7 answers
Q: How many valence electrons or transferred from the nitrogen atom to potasium in the formations of the compound potassium nitride
1 answer
Q: Is liquid nitrogen a pure substance or a mixture
1 answer
Q: Why are fibres mixed or blended to create fabrics
1 answer
Q: A laboratory equipment used for measuring the weight.
7 answers
Q: How does heat from a frying pan affect krazy glue
1 answer
Q: If a mineral lacks planes along which it may cleave what will occur
1 answer
Q: Which mineral Which mineral property is the least reliable for identifying a mineralproperty is the least reliable for identifying a mineral
1 answer
Q: What element used in coins
3 answers
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