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Anastaziya [24]
3 years ago
13

List five properties of the chair you are sitting on. Classify each as physical or chemical.

Chemistry
1 answer:
MaRussiya [10]3 years ago
6 0

Answer:

Shapes suitable for humans to sit on it, three to four legs, a flat seat, and a back. Anything with such a shape is "chair", regardless of the peculiarities of its shape or its composition (what it is made of); anything without such a shape is a "not chair", even if you can sit on it. And a chair is classified as physical.

Explanation:

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A substance has a volume of 20mL and a density of 2.5 g/mL. what is it’s mass?
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How many hydrogen atoms are in each molecule of trisilylamine?
lord [1]

Answer:

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Explanation:

The amine functional group is obtained by subsititution of one or more hydrogen atoms in the ammonia compound.

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Then,

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  • by substituting two hydrogens you obtain R' - NH - R''

  • by subsituting the three hydrogens you obtain:

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                         |

                 R' -  N - R''

In this case, the three subsitutuents are silyl groups. The silyl group is derived form silane and is SiH₃. So, the tcompound <em>trisilylamine</em> is:

                    SiH₃

                      |

          SiH₃ -  N - SiH₃

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7 0
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