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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: Which best identifies why the rusting of an iron nail in the presence of water and oxygen is an oxidation-reduction reaction
10 answers
Q: Is a solution evenly or unevenly distributed
1 answer
Q: What state is maganese at in room temperature
2 answers
Q: How do scientists represent the elements
1 answer
Q: What is wrong with copper chloride
1 answer
Q: What kind of bonding is between Cobalt and Nitrogen
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Q: What process describes the phase change from liquid to solid
2 answers
Q: A broad stream of electron particles bursting upward from the surface of the sun is called a
3 answers
Q: Which element has a symbol that starts with a letter different from the first one in its name aluminum copper gold and rhenium
4 answers
Q: What is the treatment called when you burn a tiny channel ointo a diamond to reach an inclusion and inject bleach
1 answer
Q: How many molecules of SO2 gas would occupy 4.15 L at STP
2 answers
Q: What harmful affects does citric acid have to the environment
1 answer
Q: What charge would chlorine have as an ion
1 answer
Q: Why is the amount of gases in the atmosphere usually shown as percentages of dry air
1 answer
Q: What is the total number of atoms in C3H6
2 answers
Q: Is BaSO ionic or covalent or both
1 answer
Q: Is quartz an element
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Q: What feature of the bond between hydrogen and oxygen is most important in explaining how water can act as a powerful solvent
3 answers
Q: What is the amount in moles of 3.45 g Zn
3 answers
Q: What compounds is hydrogen found
1 answer
Q: Which one of the following is not a combination reaction
1 answer
Q: What is the polyatomic ion for nitrite
1 answer
Q: How do you make anhydrous ammonia
1 answer
Q: How does carbon leave the biosphere
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Q: What does incombustible mean
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Q: What is the origin of sodium
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Q: What is in the cloud of negatively charged particles that surround an atom
3 answers
Q: Is electrical conductivity a physical or chemical property of matter
2 answers
Q: How nowthe nonpolar character of oil molecules helps when removing oil from water using nets and floats barriers
1 answer
Q: What the substance name for CO3HNa
2 answers
Q: What type of chemical bond is chlorine dioxide
1 answer
Q: Is h2o2 a double bond
7 answers
Q: What could you determine gold necklace that bubbles when it is exposed to an acid
1 answer
Q: What layer is oxygen content at highest
1 answer
Q: How might you tell if a food contains an acid
1 answer
Q: What is the scientific name for sulfur
1 answer
Q: How oxygen is sp2 hybridized in carbonyl group
1 answer
Q: Who invented mothballs
1 answer
Q: What is a model that shows how the atoms are arranged in a molecule
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Q: What is a kind of bond in which electrons are shared in an area centered between the two atoms
2 answers
Q: What is reactions that occur when more energy is released forming new bonds than is required to break bonds in the initial reactions
2 answers
Q: What is the nature of the Ca-Cl bond in a molecule of calcium chloride (CaCl2) if the electronegativity value of calcium is 1.0 and that of chlorine is 3.16
2 answers
Q: Is tungsten a ferrous metal
1 answer
Q: How do the molecules move through conduction
1 answer
Q: What is the name of the collection of elements on the right side of the periodic table with electrons sequentially filling orbitals in their valence
2 answers
Q: Does chlorine water and potassium chloride react
1 answer
Q: What does a nonpolar covalent bond show about the electronegavities of its two atoms
1 answer
Q: What is the balanced chemical equation for The combustion of acetic acid
1 answer
Q: How many electrons does a phosphorus atom gain in an ionic bond
1 answer
Q: When can you say that a solute has dissolved
1 answer
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