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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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Questions
Q: Describe how allotropes of silicon differ in appearance
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Q: Explain how the need for energy is the driving force of the oxygen cycle
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Q: Is 80 nitrogen or 20 oxygen the solute
1 answer
Q: What is In the process of covalent bonding
1 answer
Q: Grey tube contain
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Q: Write a balanced chemical equation for the synthesis of liquid phosphorus trichloride from white phosphorus and chlorine gas3
1 answer
Q: What color tube dose one use when drawing for a reticulocyte count
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Q: How do allotropes of silicone differ in appearance
2 answers
Q: Hydrogen bonds and van der Waals forces are types of .
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Q: How does decreasing the temperature of a liquid change the particles that make up liquid
3 answers
Q: In an exactly.200M solution of benzoic acid a monoprotic acid the H plus 3.55 and times 10 and ndash3M. What is the Ka for benzoic acid 6.3 and times 10 and ndash5 1.77 and times 10 and ndash2 8.88 an
1 answer
Q: Many ocean creatures make their shells out of calcium carbonate (CaCO3). This process is more difficult when the ocean pH is lower. Why would greenhouse gas emissions harm these creatures
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Q: Isobutane (C4H10) is one of the components of natural gas. Which equation shows the balanced combustion reaction for isobutane
3 answers
Q: What do Chemical equations show or describe
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Q: When naming a transition metal ion that can have more than one common ionic charge the numerical value of the charge is indicated by a .
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Q: What is pentene -apex
2 answers
Q: Which statement is true Isotopes are atoms of different elements with equal mass. For the same element they have equal numbers of neutrons. Isotopes of a given element have similar chemical properties
2 answers
Q: Identify the limiting reagent and the volume of CO2 formed when 11 L CS2 reacts with 18 L O2 to produce CO2 gas and SO2 gas at STP. CS2(g) plus 3O2(g) and rarr CO2(g) plus 2SO2(g)
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Q: If the following elements were to combine with each other choose which demonstrate the Law of Multiple Proportion. Select all that apply.
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Q: What is made out oil
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Q: The atmosphere was filled with poisonous gases during the
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Q: Approximately how long dose it take coal to form
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Q: What is a product of fossil fuel combustion
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Q: The number of bonded pairs of in a covalent bond equals the bond order.
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Q: Sometimes a group of covalently bonded atoms can act like a single atom when combining with other atoms. These covalently bonded groups possess a charge and usually form ionic bonds with other atoms.
2 answers
Q: What element fizzes when added to water
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Q: Difference between dinitrogen(i) oxide and oxygen in a tabular form
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Q: What is an alternative component to sodium phosphate for a pH 6.2 buffer preparation
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Q: Reaction equilibria of using glycine buffer when small amounts of HCL are added
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Q: Rapid combustion definition
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Q: What is cobalt chloride paper in simple terms
2 answers
Q: Meaning of selenophile
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Q: How many nitrogen atoms are in 2NH3
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Q: Which of the following would have been considered neutral
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Q: What is energy in a chemical change
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Q: How is ammonium nitrate used in the westing game book
1 answer
Q: Classify this property as intensive or extensive.
5 answers
Q: How many kilo-joules are associated with the formation of 2 moles of HBr(g)
2 answers
Q: What is the source of the sulfuric acid that will eat your face
2 answers
Q: The bonds that link many water molecules together to form a water drop are bonds.
3 answers
Q: Is ammonium nitric acid a ionic or covalent
2 answers
Q: Potassium bromide and calcium sulfide equation
7 answers
Q: Is disphosphorus pentoxide a ionic or covalent
1 answer
Q: Is aluminum sulfite a ionic or covalent
1 answer
Q: Who was the scientist that helped prepare the way for daltons work by developing the law of constant composition
1 answer
Q: The foods we eat cannot contain chemical energy
1 answer
Q: Are electrons the smallest particle of an element that retains the original characteristics of the element
2 answers
Q: A person who studies chemistry is known as
2 answers
Q: CuO plus H2SO4
10 answers
Q: Why is water not used in the electrolysis of copper permanganate solution
1 answer
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