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Chemistry
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.
221k
Questions
Q: The scattering of light by colloids is called
3 answers
Q: What group in a experiment is not changed in any way
1 answer
Q: How many more times is ammonia more basic than baking soda
1 answer
Q: Facts about binary compound
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Q: What is holding liquid in straw
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Q: Joy dish detergent does not suds up like it use to
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Q: What is the chemical equation for reaction of rennies tablets from SA HCL and NaOH
1 answer
Q: With radiocarbon dating scientists compare an object and acirc and 128 and 153s carbon-14 levels with .
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Q: Why does a beaker of hot water gets denser when it's cooled
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Q: When hiking up the earth's tallest peaks why do some climbers bring oxygen equipment to help the breathe
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Q: Is carbon more reactive than chromium
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Q: Is silicon more reactive than chronium
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Q: Positive ions from a base and negative ions from an acid form a what
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Q: How does the number of valency electrons help to explain why aluminium is a metal and iodine and bromine are non-metals
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Q: Letter xyz represent what of orbital
2 answers
Q: Predict two properties of technetium
2 answers
Q: What is the balanced equation of decomposition of lead (II) NITRATE
1 answer
Q: Would it matter if droplets of distilled water were left in the burette when it was filled with sodium hydroxide
1 answer
Q: What is the equation of decomposition of nitrate
2 answers
Q: A chef fills a 50 milliter container with 43.5 g of cooking oil. what is the density of the oil
2 answers
Q: What is KCl physical state
6 answers
Q: Name a part of the atom that contains protons and neutrons
1 answer
Q: What element has the chemical symbol He
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Q: Insert the appropriate coefficients in the blank space to balance the equation. SF4 plus H2O and acirc and 158 and 158 SO2 plus HF
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Q: How does the the reactivity of metals change when moving from left to right on the periodic table
9 answers
Q: What is the temperature at which paint ignites
1 answer
Q: The reactions that produce molecular oxygen (O2) take place in
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Q: Is grilling a steak endothermic or exothermic
2 answers
Q: In what type of reaction do burning flames and explosion occur
1 answer
Q: Why is water evaporation so important to leaves
1 answer
Q: What is a solid substance that has both shape and volume
2 answers
Q: How does Iron reacts with silver nitrate to produce aqueous iron(III) nitrate metal balance
2 answers
Q: Balance solid carbon disulfide burns in oxygen to yield carbon dioxide and sulfur dioxide gases.
2 answers
Q: Sentence with the word moisture
2 answers
Q: Calcium metal (Ca) can be produced by passing an electric current through molten calcium chloride (CaCl2). Chlorine gas (Cl2) is also formed. What is the balanced equation for this reaction
1 answer
Q: Is steel spring an insulator or conductor
1 answer
Q: Suppose 0.7542 g of magnesium reacts with excess oxygen to form magnesium oxide as the only product what would be the theoretical yield of the product
3 answers
Q: Carbon disulfide is prepared industrially by reacting carbon with sulfur dioxide according to the above equation. If 5.9 moles of carbon react how many moles of CS2 are produced
2 answers
Q: What is chemical potential energy Apex
3 answers
Q: Is corrosive a physical property
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Q: Coal is NOT classified as a mineral because
1 answer
Q: Saturated fat definition
1 answer
Q: In which sealed container would the organisms be able to continuously cycle O2 and CO2 gases
2 answers
Q: If magnesium (metal) has two valence electrons while chlorine (nonmetal) has seven how many chlorine atoms are needed to form an ionic bond with magnesium
2 answers
Q: The bond between two oxygen atoms (a molecule of oxygen air) has two characteristics. What are they
2 answers
Q: The valence electrons found in metals are different from nonmetals because .
2 answers
Q: Atoms with electronegativity differences below 0.4 generally form polar covalent bonds.
2 answers
Q: If 6 moles of a compound produce 84 J of energy what is the Hreaction in Jmol
2 answers
Q: What color lab tube is used for iron panel
1 answer
Q: Quelle est la formule chimique du diluant pour peinture
1 answer
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