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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: On the real ocean floor alternating stripes of normal and reversed polarity are not all of equal width. What does this tell you about the lengths of time represented by normal and reversed polarity
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Q: WHAT IS COLOUR OF BaCrO4
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Q: Chlorine mix with water in spray bottle
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Q: Honeybee venom is a solution that contains formic acid which gives the venom an approximate pH of 5.0. Which is more acidic than honeybee venom
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Q: The atomic number is similar to a fingerprint because
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Q: Is a candy bar an conductors or insulators
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Q: The highest levels os sulfur dioxide are found near power plants refineries and industrial boilers
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Q: How do you Remove alcohol markers from hair
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Q: Is Sodium hydroxide polar
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Q: Covalent bonds tend to make atoms more stable by helping them do what
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Q: A(n) bond forms when two atoms share one or more pairs of electrons
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Q: The average atomic mass of boron is 10.81 amu. Based on the atomic mass of B-10 and the relative abundances of the boron isotopes what is the atomic mass of B-11
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Q: Give the location of the elements found in the periodic table which have the same valence electrons
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Q: Neutral atoms of argon atomic number 18 have the same number of electrons as each of the following items except
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Q: Which is not an advancement in metallurgy
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Q: Which energy profile best shows that the Hf of H2S is -20.6 kJmol
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Q: Which belongs in the blank space of the chemical equation for the burning of fossil fuels below Fossil fuel plus carbon dioxide plus water plus heat
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Q: According to the Gibbs free energy equation G H - T S when could a high temperature make a reaction that was nonspontaneous at low temperature spontaneous
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Q: In a chemical equation the sum of the masses of the products is equal to the sum of the masses of the reactants. True False
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Q: Magnesium reacts with hydrochloric acid HCl to form magnesium chloride and hydrogen gas. The reaction is Mg plus 2HCl and rarr MgCl2 plus H2 What is the mass of HCl that would be required to completel
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Q: Based upon the ion charge of the following polyatomic ions predict the formula for the following compounds. sulfate SO4 -2 phosphate PO4 -3 hydroxide OH- sodium hydroxide
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Q: How would you find out which functional entitlement group you belong to us bank
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Q: Identify the monoprotic acid.
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Q: When entering coefficients to balance equations recall that just writing the symbol implies 1. Therefore if a coefficient of 1 is required choose blank for that box. Balance the following reaction. Al
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Q: How many electrons will metals generally have in their outer shell
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Q: True or false the temperature of a substance changes during a change in state
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Q: A reactor and uranium are used in the production of .
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Q: What kind of chemical reaction is shown AgNo3 plus NaCl--- and gtAgCl plus NaNO3
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Q: Does each chemical element have a unique name
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Q: What are some uses of lithium phosphate
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Q: Polar bonds show a electronegativity difference between atoms.
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Q: According to structural functionalists modernization results in
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Q: Why must the nuclear membrane dissolve during prophase
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Q: Is phosphorus trisulfide ionic or covalent
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Q: NaHCO3 plus energy - NaCO3 plus CO2 plus
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Q: A chemist reacts 30.0 mL of 5.6 M HCl with an excess of Mg(OH)2. How many grams of magnesium chloride will be produced
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Q: True of false acids will turn blue litmus paper red
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Q: Why were liberty bond so important
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Q: How many different appear in the decay chain
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Q: Was is the formula for Iodine monochloride
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Q: Is a kiloliter smaller or bigger than a liter
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Q: What is the action of weak alkali on reducing sugar
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Q: How much something takes up is called
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Q: What is on of the earliest forms of chemistry
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Q: Is Trichlorofluoromethane an element or a compound
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Q: Can stainless steel cause metal poisoning
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Q: If two materials are made from different kinds of atom what else should you expect to be different
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Q: In what condition would hydrogen bonding accur
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Q: Functional groups are a group of molecules attached to a carbon-based core of an organic molecule. Key functional groups are .
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Q: Chemical formula of tetraphophorous hexasulfide
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