Answer:
3.
Explanation:
- Al(OH)₃ reacts with HCl to produce AlCl₃ and water according to the balanced equation:
<em>Al(OH)₃ + 3 HCl → AlCl₃ + 3H₂O,</em>
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<em>It is clear that 1.0 mole of Al(OH)₃ reacts with 3.0 mole of HCl to produce 1.0 mole of AlCl₃ and 3.0 moles of H₂O,</em>
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<em>So, the coefficient of HCl is 3.</em>
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Answer:
I. FALSE
II. FALSE
III. TRUE
IV. TRUE
Explanation:
<em>I. A set of sp² orbitals can be thought of as one s orbital one-third of the time and two p orbitals two-thirds of the time.</em> FALSE. 1 s orbital hybridize with 2 p orbitals to form 3 sp² permanent orbitals.
<em>II. A set of sp orbitals can accommodate a maximum of six electrons. </em>FALSE. sp orbitals, as any orbital, can accommodate a maximum of 2 electrons.
<em>III. The orbitals resulting from sp³d² hybridization are directed toward the corners of an octahedron.</em> TRUE. 1 s orbital, 3 p orbitals and 2 d orbitals hybridize to form 6 sp³d² orbitals, which are directed toward the corners of an octahedron.
<em>IV. A set of sp³ orbitals results from the mixing of one s orbital and three p orbitals.</em> TRUE. 1 s orbital hybridize with 3 p orbitals to form 4 sp³ orbitals.
Answer: Velocity
Explanation:
i just took the quiz for k12
Answer:
n = 5.
Explanation:
How many carbon atoms in total in this straight-chain hydrocarbon?
The prefix of the IUPAC name of a hydrocarbon (the part before -ane) shows the number of carbon atoms on the longest carbon chain.
.
- Name of this hydrocarbon: heptane;
- Prefix: hept-;
- Number of carbon atoms in the longest chain: 7.
Hence the structure:
.
All the in the formula might look redundant. "" appears five times in a row and may be condensed into . Hence the condensed formula:
.
Therefore .