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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: Which is not a compound water carbon dioxide gas silicon dioxide oxygen gas
2 answers
Q: What is the best definition of a polar covalent bond
1 answer
Q: Which one of the following produces hydrogen ions in a water solution
8 answers
Q: Which of he following are properties of acids
1 answer
Q: Which one of the following is a double- displacement reaction
4 answers
Q: Calcium carbonate is a type of hydrogenous sediment that can be buried and hardened into .
3 answers
Q: The burning of wood is an example of an oxidation - reduction reaction
7 answers
Q: Jenny places a strip of pH paper into a solution. When she removes the pH paper it has turned yellow-green. What should Jenny do next to determine the pH of her solution
1 answer
Q: Aluminum (Al) is higher than iron (Fe) on the activity series. What does this mean
1 answer
Q: What process usually requires water
1 answer
Q: Substance A has a higher heat capacity than does substance B and substance B has a higher heat capacity than does substance C. If you add the same amount of heat to all three which order shows the pro
2 answers
Q: What gas comes out of the fire of the candle stick
1 answer
Q: A balloon contains 7.36 g of oxygen gas (O2). How many oxygen molecules are in the balloon
1 answer
Q: How many carbon atoms are represented by the model below
2 answers
Q: What is the balanced form of the chemical equation shown below Zn(NO3)2(aq) plus Na2S(aq) ZnS(s) plus NaNO3(aq)
1 answer
Q: Why are chemical equations balanced
1 answer
Q: A structural model of retinol is shown below. How many hydrogen atoms are in retinol
1 answer
Q: What is the balanced form of the chemical equation shown below Cr(s) plus Cl2(g) CrCl3(s)
1 answer
Q: Bromine and sodium a bromine atom gains an electron and forms the bromide ion Br and ndash. What happens to bromine
1 answer
Q: N the reaction between bromine and sodium a bromine atom gains an electron and forms the bromide ion Br and ndash. What happens to bromine
1 answer
Q: How do you call the exchanging of gases for the purpose of producing energy
1 answer
Q: The correct formula for Ca2 plus reacting with NO21-
1 answer
Q: Unity can be achieved by placement of elements in a work of art. true or false
2 answers
Q: Compare the nitrogen carbon and oxygen cycles.
1 answer
Q: Why can a group hear the same instructions but interpret them completely different
2 answers
Q: How many atoms are in ch4o
1 answer
Q: What is Keq for the reaction H2(g) plus Cl2(g) 2HCl(g)
2 answers
Q: If the products of a reaction are CO2 and 2H2o what is known about the reactants
2 answers
Q: If the ending -ide is added to the name of an ion what do we know about the ion
4 answers
Q: Building blocks of matter from smallest to largest
6 answers
Q: Clive's paper was returned with the answer barium II carbonate marked wrong for the formula BaCO and Euml and Auml. Why was his answer wrong
1 answer
Q: When you heat ice on a hot stove the ice melts. What is happening during this process
2 answers
Q: Where can we find a correct electron dot diagram for Al
1 answer
Q: Is vinyl chloride in floor cleaner
1 answer
Q: Is bakelite a mineral
3 answers
Q: Which layer is composed of silicon and aluminum
1 answer
Q: Is K2Cl an ionic or convalent
1 answer
Q: Can benzene h bond
1 answer
Q: Is alcohol a flame accelerant
2 answers
Q: What makes carbon uniquely suited to begin the basis for biological molecules
2 answers
Q: What is the correct name for HgO compound
1 answer
Q: Does iodine have dull appearance
1 answer
Q: Because bases increase the number of hydroxide ions OH- solutions of bases can
1 answer
Q: Air is what nitrogen
2 answers
Q: Examples of monosaccharide carbohydrates
8 answers
Q: What are the similarities and differences in solutions and two components
1 answer
Q: What do condensation and filtration have in common
1 answer
Q: How could you distinguish solid barium chloride
1 answer
Q: If 507 g FeCl2 were used up in the reaction FeCl2 plus 2NaOH Fe(OH)2(s) plus 2NaCl how many grams of NaCl would be made
8 answers
Q: A change that produces matter with a different composition than the original matter is what
3 answers
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