CHEMISTRY HIGH SCHOOL

How many atoms lie in a straight line in the molecule 2-butyne, CH₃C≡CCH₃?a. 10
b. 8
c. 6
d. 4
e. 2

Answers

Answer 1
Answer: The carbons from the double link lie in a straight line, together with the neighbouring carbons. The hydrogens lie in a tetrahedrical configuration, so none could be counted. Final answer: 4.

Related Questions

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A neutral charge by an atom is caused by which of the following conditions? a. presence of neutrons in the nucleus
b. balance in number of protons and neutrons
c. balance in number of electrons and protons
d. the balance of electrons in each electron shell

Answers

Answer C is the correct answer. Balance in number of electrons and protons 

Answer:

C.) balance in number of electrons and protons.

Explanation:

Its the right answer i swear!!!

Give two reasons why quarrying is bad for the environment?

Answers

1) The longer the quarrying goes on the less and less recources we will have, soon leading to no more recources 

True or false: Chlorine treatment is effective in removing Cryptosporidium from water.

Answers

Answer:

False, they are non-effective

Explanation:

A substance that cannot be broken down into other substances by ordinary chemical procedures is a(n) __________ a) element
b) compound
c) isotope
d) proton
e) molecule

Answers

Answer:

A

Explanation:

An element is a substance that cannot be broken down into simpler substances using ordinary chemical procedures. To disintegrate an element, procedures like nuclear reactions needed to be used.

In fact, it was thought of that the elements are indivisible during the days of Dalton, but advances in science and technology has shown that these elements could be broken down albeit not easily

Final answer:

An element is a substance that cannot be broken down into other substances by ordinary chemical methods. It is the basic unit of all matter. Examples of elements include gold, silver, and carbon.

Explanation:

A substance that cannot be broken down into other substances by ordinary chemical methods is called an element. This is because elements are the fundamental materials of which all matter is composed. For instance, gold, silver, and carbon are examples of elements. Unlike compounds, isotopes or molecules, an element is made up of the same type of atom and cannot be decomposed into simpler substances by any ordinary chemical processes.

Learn more about Element here:

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PLEASE HELP ME WITH THESE THREE QUESTIONS!!!!!!!!!!!!Some of the newest types of modern appliances are 100% efficient and lose no energy to heat.
True
False
A perpetual motion machine is an invention that has only worked a few times in history.
True
False
Thermal pollution occurs when factories use water to cool down their heated machinery, and then release the heated water into rivers and oceans.
True
False

Answers

I'm not sure with one but, 2 is False. and 3 is true.
true
true
false
                                            i hope that helps too
                                                hopefuly...........

Which statement explains why a C–O bond ismore polar than a F–O bond?
(1) At STP, carbon has a greater density than
fluorine.
(2) A carbon atom has more valence electrons
than a fluorine atom.
(3) The difference in electronegativity between
carbon and oxygen is greater than that
between fluorine and oxygen.
(4) The difference in first ionization energy
between carbon and oxygen is greater than
that between fluorine and oxygen.

Answers

Answer: (3) The difference in electronegativity between  carbon and oxygen is greater than that  between fluorine and oxygen.

Explanation: Polarity of a molecule is due to the difference in electronegativity of the atoms. More is the electronegativity difference, more is the polarity.

Electronegativity of carbon = 2.5

Electronegativity of oxygen = 3.5

Electronegativity of fluorine = 4.0

Thus the difference in electronegativity of carbon and oxygen is=(3.5-2.5)= 1.0

Thus the difference in electronegativity of fluorine and oxygen is=(4.0-3.5)= 0.5.

Thus C-O bond is more polar than F-O bond.
The correct answer is statement 3, the difference in electronegativity between carbon and oxygen is greater than that between fluorine and oxygen. The most polar bond is the one with the highest difference in electronegativity values between two atoms. In this case, the C-O bond.
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