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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: At high temperature R-12 and amp R22 are decompose of what form
1 answer
Q: Which is ionic ICl SO3 KI CHCl3
2 answers
Q: Is Waste is considered hazardous if it meets the definition of a solid
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Q: Why saline in IV bags has 0.9 percent NaCl concentration
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Q: What temperature does a oxyacetylene torch burn at
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Q: Percent of boron in borax
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Q: Which has more atoms 3.0 grams of iron Fe or 2.0 grams of sulfur
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Q: How many formula units are there in 0.0482 mol of sodium sulfate
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Q: The hydrate sodium sulfate on heating the hydrate how many moles of water should be driven off per mole of hydrate
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Q: Vant Hoff factor of sodium sulphate
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Q: What is the name of this compound Mg(OH)2
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Q: Dot structure for covalent bond C6H12
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Q: Helen placed fresh pieces of granite marble and sandstone in beakers of dilute sulphuric acid. Only the marble reacted with the acid. Only the marble reacted with the acid. Use Helen and results t
2 answers
Q: How would you draw an electron cross structure for ethene
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Q: What is Valency of potassium dicromate
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Q: Give the formula and name of the alkane which contains four carbon atoms in each molecule
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Q: The features by which a material can be identified are called
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Q: How many tbs are in one Elmer glue bottle
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Q: What are the elements in group 4a called
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Q: Is hydrogen peroxide a good reducing agent
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Q: Medicine paint and other household chemicals cannot harm the soil.
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Q: What colors to mix to make cream
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Q: What is the formula for aluminum bicarbonate
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Q: What acid will eat through marble
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Q: What mineral ore is copper contained in
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Q: The ions Cr3 plus and O2- combine to form the ionic compound chromium oxide. In what proportions do these ions combine to produce a neutral compound
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Q: At what ratio will potassium and sulfur form a binary ionic compound
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Q: What element would you expect to behave the most like carbon
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Q: What are the elements in the tall columns called
2 answers
Q: Who performed the oil drop experiement
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Q: Which of the following is the correct nuclide symbol for bromine-81
2 answers
Q: Once civilizations formed people started to remain in a single place. Which of the following was a direct result of this occurrence
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Q: What following statement best describes the number of neutrons in an atom
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Q: When 30 mL of water is added the graduated cylinder has a mass of 110 g. If a rock is added to the graduated cylinder the water level rises to 37 mL and the total mass is now 250 g. What is the densit
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Q: What was the one drop
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Q: What approximate mass would a sample of naturally occurring boron (B) that contains 1 x 106 atoms of boron have
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Q: Boiling and melting point of aluminium
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Q: Boiling and melting point of copper(II) sulfate crystals
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Q: A combination of two or more atoms of the same type is called
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Q: What is the aim of hydrolysis of carbohydrates
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Q: What pancreatic fluids is responsible for the breakdown of fat
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Q: Name one compound containing large anions which can be used for precipitation of potassium ions from aqueous solution
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Q: Why does lead bromide have to be molten for electrolysis to occure
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Q: Is an atom with 78 protons in its nucleus a palladium atom
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Q: How are two atoms held together in a covalent bond
4 answers
Q: What are the two factors that would need to be kept constant in Redis experiment
1 answer
Q: If in the previous problem only 25.9 grams of water vapor were formed how much methane actually reacted with oxygen
3 answers
Q: Is oxygen a abstract noun
1 answer
Q: What are the three substances in a healthy person urine is normally made of
1 answer
Q: At what time of day are dissolved oxygen levels most likely to be highest
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