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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: How many 3d electrons are in an atom of potassium
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Q: How many 3d electrons are in the atom of Zn
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Q: Is sodium sulfide a binary compound
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Q: What is an amount of something that is available to be used
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Q: Is cracking of petroleum fractions a chemical or physical change
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Q: Is SiCl in Cl3SiSiCl3 ionic covalent or polar covalent
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Q: What is the balanced chemical equation for Calcium carbonate calcium oxide plus hydrogen
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Q: What is the Fraction of hydrogen peroxide
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Q: How Hannah is a PhD chemist with the corporation where the accident occurred. She has received a huge settlement from the corporation's insurance company.
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Q: Why can't chemical changes be reversible
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Q: Why does water form a spherical on wax paper instead of spreading out flat
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Q: What is the formula for copper bromide containing the CU plus ion
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Q: What type of bond is formed between sugar molecules
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Q: Is ZnF2 polar or non-polar
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Q: What is the condensation point of iron
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Q: Can natural gas be recycled
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Q: What a result of chemical weathering
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Q: How many atoms are in 2CaCl2
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Q: What do all iron atoms and ions have in common
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Q: What is the molecular shape of CO
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Q: What is water gas and how it is prepared
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Q: Is ch3co2ch3 an acid or base
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Q: What mineral is a good conductor for electricity and heat
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Q: What would happen if you mix sulfur tellurium phosphorus and hydrogen
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Q: What is a substance put on surfaces to reduce thee friction between the surfaces called
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Q: What colour is milk on a universal indicator
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Q: How much does one Cm of ginger weigh
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Q: How many times greater is the mass of a proton than the mass of an electron
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Q: What element has the same family as chlorine and fluorine
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Q: What elements are combined to make sugar
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Q: What statement holds true for the amount of matter in a successful food web A) Amount of matter contained in the producers and consumers should be equal. B) Amount of matter produced by the producers
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Q: What does ep on ns mean on silver
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Q: What is the mass in grams of 7.50 and times1020 molecules of caffeine C8H10N4O2
2 answers
Q: What salt is obtained on reaction of picric acid with sodium carbonate
1 answer
Q: How many protons lead have
3 answers
Q: Why potassium is solid at room temperature
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Q: What is the compound name for Cr3P2
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Q: What is calorific value of municipal solid waste
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Q: What is the compound present in henna that creates the red colour
1 answer
Q: What scientist said most of the mass of the atom is in tiny dense positively charged nucleus
11 answers
Q: Is a copper metal and acid that give no reaction a physical or chemical property
2 answers
Q: How zinc chloride bonds
2 answers
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