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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: Engineers find a new metal that is stronger than steel but much lighter. This material is also significantly cheaper than what is currently used for most aircraft available in large quantities and eas
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Q: Identify the elements in main element in emeralds and aquamarines
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Q: An atom of boron has 5 protons and 6 neutrons what is the mass number
1 answer
Q: The analysis of an organic compound showed that it contains 0.175 mol C 0.140 mol H and 0.035 mol N. Its molecular mass is about 160 gmol. What is the subscript on C in the chemical formula
1 answer
Q: A sodium atom will readily lose an electron to chlorine atom. What type chemical bond is formed
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Q: Ionic compounds that dissolve in water conduct electricity because they break into gases that move freely.
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Q: When dry ice is exposed to the air it changes to vapor. This is called
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Q: Sodium forms a positive ion (Na plus ). Which change occurs during the formation of this ion
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Q: Which of thesestatemens about sharing authority is false
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Q: A mineral's ability to reflect light is a test for
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Q: This mineral is used in the production of steel and to give color to paint
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Q: Is chips a compound or an element
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Q: Ask us anythingOctane (C8H18) is found in gasoline. It is burned for fuel in a combustion reaction. The unbalanced combustion reaction for octane is shown below. C8H18 plus O2 CO2 plus H2O plus heat W
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Q: Which molecule is propyne
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Q: Models are used to show which qualities of a compound and chemical structure
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Q: How many grams of NH3 can be produced from 4.46 mol of N2 and excess H2.
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Q: Ask us anythingMany 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 creatur
1 answer
Q: Ask us anythingCarbonic anhydrase is an enzyme in the human body that participates in the reaction shown below CO2 plus H2O H2CO3 How will this reaction be affected if carbonic anhydrase acts as a cat
2 answers
Q: Which condition would most likely result in incomplete combustion
2 answers
Q: Make an analogy between the sharing of electrons and completion of a jigsaw puzzle
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Q: How much does a gallon of 93 Sulfuric acid weight
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Q: Which molecule is pentanoic acid
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Q: 3 things What is nitrogen used for
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Q: Ask us anythingWhen naming a molecule how do you indicate that the carbons on either side of the double bond are pointing in opposite directions
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Q: How many oxygen atoms are in each formula unit of lead(II) nitrite
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Q: How many bou nystatin to 1kg
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Q: A volume of water is heated from C to C what happens
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Q: What is diphenylcarbazide
1 answer
Q: What is the branch of science that studies chemicals
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Q: Is Chlorine is more electronegative than bromine
1 answer
Q: Does Br2 contain a polar covalent bond
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Q: Rank the molecules (listed below along with the abundances of the individual atoms) by the height of their peaks in the mass spectrum for BrCl.
1 answer
Q: What do higher organisms use nitrogen to make
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Q: Answer doe it have a strong or weak stem for rose flower
1 answer
Q: Which answer correctly summarizes the essential elements of a scientific theory
1 answer
Q: Is CoBr3 ionic or covalently bonded
4 answers
Q: Polar covalent molecules are more likely to exist as liquids than gases. Explain this in terms of intermolecular forces
1 answer
Q: Two carbon atoms can be joined together in three types of covalent bonds which type is the strongest
1 answer
Q: Is BaSO3 an ionic compound
2 answers
Q: What is the shape of BH3 molecule
11 answers
Q: What is most of the worlds oxygen produced by
1 answer
Q: This element was named after Albert Einstein
1 answer
Q: What type of bond will form between of Ca and F
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Q: The rapid movement of gases molecules can be explained because gases have size particles and exert attraction for other gas particles.
2 answers
Q: Drinking or eating in a laboratory is discouraged mainly because .
2 answers
Q: If you have obtained more than the required amount of a solid chemical from a reagent bottle you should .
2 answers
Q: Which element has a larger atomic radius than tin
1 answer
Q: When electrolytes are dissolved in water do they produce ions
3 answers
Q: What happens When the carbonic acid-sodium bicarbonate buffer pair buffers lactic acid
1 answer
Q: What color tube is PSA test
1 answer
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