What does the name 2–butene tell you about this hydrocarbon's molecular structure?A.There are two carbon atoms and all single carbon bonds.
B. There are two carbon atoms and a double carbon bond.
C. There are three carbon atoms and a double carbon bond that starts on the second carbon atom.
D. There are four carbon atoms and a double carbon bond that starts on the second carbon atom.
Answers
Methane: one carbon
Ethene: two carbons
Propene: three carbons
Butene: four carbons.
Pentene: five carbons
The suffix - ene is used for double bonds.
The number 2- indicates the place of the carbon on which the double bond is located.
Gradpoint answer: a four-carbon hydrocarbon with a double bond between the second and third carbon atoms
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A 134.0 g sample of an unknown metal is heated to 91.0⁰C and then placed in 125 g (125 mL) of water at 25.0⁰C. The final temperature of the water is measured at 31.0⁰C. Calculate the specific heat capacity of the unknown metal.
Only smart people are allowed to answer ONLY smart people............... If you can answer this correctly then maybe you are actually yourself!!!Fill in the blanks: ______ compounds break up into ______ and ______ in solution, which can move freely and carry an _______ current.
b. gas tail
c. dust tail
d. Giant Red Spo
Answers
The correct answer is A. cloud of gases that forms around the nucleus of a comet is called a coma. The coma is a dusty, fuzzy cloud around the nucleus of a comet. Other parts of a comet are the nucleus and the tail.
Answer:
giant red spo
Explanation:
b. a compound is decomposed by an electric current.
c. a compound burns in the presence of oxygen.
d. a new compound is formed.
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Answer: d. a new compound is formed.
Explanation:
1. Decomposition is a type of chemical reaction in which one reactant gives two or more than two products.
Example:
2. Electrolytic decomposition is a type of chemical reaction in which one reactant gives two or more than two products. on passing electric current.
Example:
3. Combustion is a type of chemical reaction in which fuel is reacted with oxygen to form carbon dioxide and water.
Example:
4. Synthesis reaction is a chemical reaction in which two reactants are combining to form one product.
Example:
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Answers
Answer: 1 . Unsaturated Solution
2. Saturated Solution
Explanation:
1 ..tedsaturauntionsolu----------- Unsaturated Solution
2. ratedsatulutisoon--------------Saturated Solution
An Unsaturated solution is defined as a solution which contains an amount of solute that dissolves completely since the amount of solute is still less than the maximum amount that can readily dissolve in such solution and an additional amount of solute if added continues to dissove in the solution. Here the solution is still less than the equilibrium point.
example include. Addition of salt or sugar in water and it dissoves completely.
A saturated solution is defined as A solution which contains a maximum amount of solute that an additional solute will no longer be capable of being dissolved further since its equilibrium point has been reached.
Example- The addition of sugar to water till it no longer dissolves
Carbonated water is a saturated solution saturated with carbon as can be seen in the air bubbles it gives offf in form of carbon.
2.) decreasing electronegativity
3.) increasing 1st ionization energy
4.) decreasing atomic mass
Answers
As the atomic number increase in the 2nd period, the first ionization energy also increases. Therefore, option (3) is correct.
What is the ionization energy?
The ionization energy can be described as the minimum amount of energy that is absorbed by an electron to come out of the influence of the nucleus of a gaseousatom.
In general, the atomic number of an atom increases as we move from left to right in a period on the modern periodic table. While moving from left to right, there is an increase in the effective nuclear charge while the electron enters the same electron shell.
The atomic radius of an atom in the period decreases in the order of increasing atomic number. As the effective nuclear charge is increasing large amount of energy is required to knock out the electron from an atom. Therefore, the first ionization energy also increases as the atomicnumber increase in the 2nd period.
Learn more about ionization energy, here:
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Answers
Hydro= water
-phobic= fear
Hydrophobic= fear of water, or disliking water
*Think of it like this:
when you mix oil and water, do they mix, or does oil float at the top?
If your reply is "oil float to the top", then you're right. Oil and water DOES NOT mix together. Hope that help!