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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 ion did needed by the unhealthy place to get The right levels of nitrogen
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Q: How many molecules of water does a 50g sample of H2O have
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Q: What is The properties of a compound are different from those it is made of
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Q: When light is broken down what color is located between green and indigo
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Q: What are families on the periodic table
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Q: When Salt dissolving water physical change or chemical change
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Q: If nitrogen which has an electronegativity of 2.0 bonds with hydrogen which has an electronegativity of 2.1 the bond between the two atoms will be classified as
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Q: In a nuclear reactor the moderator is usually made of graphite placed between the fuel rods used to slow down neutrons all of the above none of the above
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Q: What color do you see when all colors are absorbed
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Q: What is the base in detergent
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Q: How many grams of sodium are in sodium carbonate
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Q: What elements is plastic made of
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Q: Why is coal good
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Q: How are evaporation and sublimation the similar
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Q: What is the double replacement for ammonium chloride plus calcium hydroxide
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Q: What would the final freezing point of water be if 3 mol of sugar were added to 1 kg of water kf1.86 c molkg for water and I 1 for sugar
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Q: What term for reactions that require energy input
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Q: Are zippers strong
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Q: What is the name of HgIO2
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Q: How many protons and electrons are there in a chloride ion
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Q: What would be the mass of 1000ml of aluminum
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Q: What is it called when tar is hard to pour because it doesn't flow easily
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Q: Why are phosphate detergents banned in some areas
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Q: What happens to the conductivity of water when an acid is dissolved in it
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Q: What can be used to heat large amounts of liquid
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Q: Is Ca or Sc more reactive in science
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Q: What four properties that acids and bases have in common
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Q: What is the temporary lack of oxygen called
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Q: Why is cuso4 the reverse true salicylic acid
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Q: Is 250 grams of water the same as 250 millimeters of water
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Q: If neutral atoms become positive ions they
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Q: Why does white glue dry clear
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Q: Will chlorine react with sodium chloride
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Q: How can you show the effect of pressure on the solubility of carbon dioxide gas in water
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Q: Is lithiam more likely a conductor or a insulator
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Q: What is the factor that affects the outcome of an experiment
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Q: What is the symbol for oxygen as an ion
4 answers
Q: What is beryllium cation or anion
2 answers
Q: If ethyl alcohol boils at 79 degrees Celsius a physical or chemical change
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Q: What did apothecaries use to make many of the madications in the 17th century
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Q: If the sodium atom contains 11 electrons 11 protons and 12 neutrons what is the mass number of sodium
1 answer
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