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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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Q: In which compound does hydrogen have an oxidation number of -1
1 answer
Q: What are the 3 categories of matter represented by rock salt hard plastic and aluminum foil
4 answers
Q: What is the oxidation number of a Cobalt (III) ion
1 answer
Q: In a hydrogen ion pump the energy is used to join small molecules together to make larger ones. Which factors most likely has the greatest effects on the number of molecules mitochondria can produce
2 answers
Q: What is the total pressure of a gas mixture containing partial pressures of 0.23 ATM ATM and 0.89 ATM
2 answers
Q: How does the oxygen change to carbon dioxide
2 answers
Q: What does Total Petroleum Hydrocarbons effect
1 answer
Q: What is urea and where does it come form
2 answers
Q: What is observed when ethene is passed through bromine solution in carbon tetrachloride
1 answer
Q: Is chlorine bad for babies
1 answer
Q: Why ammonia is more toxic than urea
1 answer
Q: What is the ratio of carbon to hydrogen to oxigen
2 answers
Q: How many molecules of SO2 would be present per cubic metre if the world health organization has set a limit to the sulfur dioxide content of clean air of 3.10 X 10-6 mol of SO2 per cubic metre.
1 answer
Q: What is the density of nitrogen compared to breathable air
2 answers
Q: What are Superconducting oxides
1 answer
Q: What Dissolved gas presents in acid rain is
1 answer
Q: What type of change occurs during both the dissociation process and the distillation process
1 answer
Q: What happen to the bonding of atoms in a physical change
2 answers
Q: Is turkey a homogeneous mixture
2 answers
Q: When chemical bonds form is energy absorbed release
3 answers
Q: What does the subscript three mean in NaHCO3
2 answers
Q: What characterizes am Arrhenius base
1 answer
Q: What anticoagulant is used for most coagulation test
1 answer
Q: What element is shiny is solid at room temperature and has atoms with two valence electrons
2 answers
Q: What Substances Are produced During Phtosynthesis
1 answer
Q: Can i use isopropyl alcohol in place of rubbing alcohol for making soap
1 answer
Q: Is citric acid heavier than water
1 answer
Q: What state of matter takes up the space of its container
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Q: Is most likely to be a reason why the element hydrogen is placed in group I of the periodic table
2 answers
Q: If a photons wavelength is 663 nm what is its energy
3 answers
Q: What type of reaction is shown below Sr(s) plus Cl2(l) SrCl2(s)
2 answers
Q: What is the number of atoms NH4Cl
2 answers
Q: How can you break a water molecule
1 answer
Q: What is the process of which materials are broken down
1 answer
Q: What happens when an acid is added to a base
1 answer
Q: What do You need to heat a solid to a temperature of 250 and deg Celsius. What would be the most appropriate type of glassware to use
1 answer
Q: How do you write aqueous solutions of copper(1) nitrate and potassium sulfide are mixed forming insoluble copper(1) sulfide
1 answer
Q: How many grams of silicon would there be in a sample that contained 9.99 x 1025 atoms
2 answers
Q: Are elements considered to be a substance
2 answers
Q: Why was is it hard to do laundry in tenements
1 answer
Q: In a controlled experiment what is the experimental group called
1 answer
Q: How many limes in one kilogram
1 answer
Q: In this equation stands for carbon stands for nitrogen and stands for oxygen. Which equation represents this reaction
1 answer
Q: What does law of conservations of mass state
2 answers
Q: What happens when sugar and iodine is mixed
1 answer
Q: How did oxygen gas become part of the atmosphere
1 answer
Q: Is tartaric acid monoprotic
1 answer
Q: What is the largest radius Na or Al
2 answers
Q: What is the element name of the continent of Europe
5 answers
Q: What happens when energy transfer in fuels when it burns
1 answer
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