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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: What determines the composition of brackish water
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Q: How is the energy stored in coal
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Q: What lead Fleming to the discovery of pennicillin
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Q: How much heat is needed to melt 2.50 kg of water at its melting point
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Q: What is CH4 in chemistry
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Q: What part of the lung do oxygen molecules diffuse across into the bloodstream
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Q: Which oxide of carbon are neutral
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Q: What is the real life application of ideal gas law
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Q: What is the colour of the flame when barium burns with oxygen
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Q: What is monosaccharide isomers
4 answers
Q: What is a negative impact of using ethanol for energy
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Q: What is the valence of Fluoride
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Q: How many moles of ions will HCL produce when they dissociate
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Q: What is the total number of moles of atoms present in 1 mole of Ca3(PO4)2
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Q: Cleaning lead dust is TRUE
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Q: What happens when you add excess copper oxide to dilute sulphuric acid
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Q: Why is lead oxide not alkali
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Q: What is the chloroform bond angle
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Q: Which of these is a carbonate
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Q: What is the chemical formula for the compound formed between potassium and bromine
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Q: What are some characteristics of a chemical change
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Q: What is the charge if most common ion for Cs
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Q: What area of science studies is atoms in
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Q: What are the charges of subatomic particles and their locations in the atom
4 answers
Q: How many lone pairs in NO2F
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Q: What is the hypothesis of elephant toothpaste experiment
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Q: In the reaction MgCI2 plus 2KOH Mg(OH)2 plus 2KCI if 3 moles MgCI2 are added to 4 moles KOH what determines how much Mg(OH)2 is made
3 answers
Q: What is the mass of CO2
5 answers
Q: How can oxygen cross through the membrane
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Q: Is cooking foil a conductor or insulator
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Q: Why is burning a candle a closed system
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Q: When oxygen is NOT available to an animal cell what happens
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Q: How many grams is 64 moles of Cl
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Q: What substances are found in urine under healthy conditions
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Q: Which substance is the best insulator air glass or silver
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Q: Why isn't the periodic table of elements organized in alphabetical order
11 answers
Q: What type of bond does selenium and bromine form
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Q: How many 25ml measures are there in 2 litres bottle
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Q: What metal reacts steadily with dilute hydrochloride acid
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Q: What 2 elements were discovered in the 1990s
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Q: Is NH4F ionic
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Q: Why is not possible to write on an oily paper
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Q: How is hydrogen peroxide stored to minimize decomposition
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Q: It is difficult to write on glazed paper
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Q: Can heat coagulation be use to detect the presence of albumin in urine
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Q: Is aerosol deodorant a solution or a suspension
2 answers
Q: What is The name of the base CaOH2
1 answer
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