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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 does water carbon dioxide salt have in common
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Q: Is reacts with acid a physical and chemical property
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Q: At room temperature the greatest attractive forces exist between particles of
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Q: At a given temperature and pressure the physical state of a substance is determined by
3 answers
Q: Metals tend to appear on the side of the periodic table with the exception of which is a nonmetal.
2 answers
Q: How many sodium atoms are there in one molecule of baking soda
1 answer
Q: In a scientific experiment the one variable that is purposely changed to test a hypothesis is called the manipulated variable.
1 answer
Q: Iron carbon and neon are all examples of what
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Q: How many atoms are in 1.5 moles of glucose (C6H12O6)
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Q: Waste that can catch fire eat through metal explode or make people sick is called
1 answer
Q: The main reason for learning to correctly pour fluids in a laboratory is to conserve costly chemicals true or fasle
5 answers
Q: What is the usual oxidation for oxygen
2 answers
Q: Don says he is a non-smoker. Suggest one other way carbon monoxide could have go into Don' s blood before he came to work tht day
1 answer
Q: In one gram of carbonate (M2O3) on treatment with excess HCL produces 0.01186 moles of carbon dioxide. The molecular mass of M2O3 in g mol- is
1 answer
Q: Knowing indicators of an unstable person can allow you to identify a potential insider threat before an incident. (Antiterrorism Scenario Training Page 4)
2 answers
Q: What scientist in 1661 defined element in a manner that made it subject to laboratory testing
1 answer
Q: What is the word equation for iron(III) nitrate and copper
1 answer
Q: Which part of an atom participates in the reaction shown below U235 plus n and acirc and 134 and 146 Xe134 plus Sr100 plus 2n
1 answer
Q: Acetylene gas should never be used at a pressure above
2 answers
Q: What are the elements of 3CACI2
1 answer
Q: What is the purpose of an electron
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Q: XeF3 polar or nonpolar
3 answers
Q: Is a piece of chalk a conductor or an insulator
1 answer
Q: Why oxygen is smaller than lithium
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Q: Does gravel make water acidic
2 answers
Q: When iodine crystals are heated and cooled in a hot water bath what happens
1 answer
Q: To make salt water a heterogeneous mixture you would have to do what
1 answer
Q: What does analytical intelligence mean
3 answers
Q: What is the complete ionic equation of sodium carbonate and sulfuric acid
12 answers
Q: 175g of water was heated from 15 degrees Celsius to 88 degrees Celsius. How many kilocalories were absorbed by the water
1 answer
Q: How are ionic bonds formed and what type of structure do they create
1 answer
Q: Explain why a triple bond between two nitrogen atoms is stronger than a double bond between two oxygen atoms
1 answer
Q: The nutrient formed by amino acids
1 answer
Q: What is a fluorinated hydrocarbon
8 answers
Q: What is the mole fraction of ethanol C2H5OH in an aqueous soloution that is 50.0 ethanol by mass
2 answers
Q: Is phosphoric acid a stimulant
1 answer
Q: What is this substance I am colorless to white and I am used as a food additive usually with pepper
1 answer
Q: Someone who does experiments
1 answer
Q: Combining equal amounts of the three primary pigments produces
1 answer
Q: What is the independent variable in the magnesium oxide reaction
4 answers
Q: What sort of error is expected if the reaction during titration is incomplete
1 answer
Q: When the pH level of a solution changes from a pH of 5 to a pH of 3 the hydronium ion concentration is
2 answers
Q: 2HCL plus Zn what is the result
2 answers
Q: Where are innermost electrons located
1 answer
Q: Using the particle theory of matter why does gold become a soluble in water when combined with cyanide
1 answer
Q: What is the property that describes how easily a substance catches fire and burn
1 answer
Q: What is a heterogeneous mixture in which the particles are large and dispersed and can be seen and easily separated
1 answer
Q: Hypobromite is used to purify contaminated water. what is the formula for hypobromite
1 answer
Q: The rock shown is composed primarily of large Crystals that were formed by
1 answer
Q: Why are some noble gases called inert gases
1 answer
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