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Andre45 [30]
3 years ago
7

ASAP

Chemistry
2 answers:
True [87]3 years ago
6 0

Answer:

Lionfish are native to the Indo-Pacific region. However, a hurricane caused six fish from an aquarium to accidentally be swept out into the Atlantic Ocean. Female lionfish produce thousands of eggs at a time, which has allowed their population to rapidly increase in the Atlantic. There’s no firm estimate of the number of lionfish in the Atlantic Ocean right now. However, it might be as many as 375 to 1,000 lionfish per acre of ocean. These fish have predators such as sharks and scorpion fish in their natural habitat. However, they don’t have many natural predators in the Atlantic Ocean, where the typical predatory animals don’t seem to recognize lionfish as food. Their one predator is humans, who have recently started fishing them for food. In the Atlantic Ocean, algae and seaweed are producers. Small fish, crabs, and other crustaceans make up the first and secondary consumers. Sharks and orcas are some of the larger predators, which are also consumers. Bacteria and fungi are the decomposers that break down food. Lionfish are consumers because they eat fish and small crustaceans.

ehidna [41]3 years ago
6 0

Answer:

Lionfish are native to the Indo-Pacific region. However, a hurricane caused six fish from an aquarium to accidentally be swept out into the Atlantic Ocean. Female lionfish produce thousands of eggs at a time, which has allowed their population to rapidly increase in the Atlantic. There’s no firm estimate of the number of lionfish in the Atlantic Ocean right now. However, it might be as many as 375 to 1,000 lionfish per acre of ocean. These fish have predators such as sharks and scorpion fish in their natural habitat. However, they don’t have many natural predators in the Atlantic Ocean, where the typical predatory animals don’t seem to recognize lionfish as food. Their one predator is humans, who have recently started fishing them for food. In the Atlantic Ocean, algae and seaweed are producers. Small fish, crabs, and other crustaceans make up the first and secondary consumers. Sharks and orcas are some of the larger predators, which are also consumers. Bacteria and fungi are the decomposers that break down food. Lionfish are consumers because they eat fish and small crustaceans.

Explanation:

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Please calculate the mixed volume (Vmix) when 0.300 mol of ethanol and 0.200 mol of water are mixed. Hint: The partial molar vol
Grace [21]

Answer:

If we assume the molar volumes of water and ethanol 17.0 and 57.0 cm³/mol, respectively, Vmix = 20.5 cm³.

Explanation:

The molar volume of a substance is the ratio between the volume and the number of moles of the substance. It represents the volume that 1 mol of it occupies. Because we don't have access to page 24, let's assume the molar volumes of water and ethanol 17.0 and 57.0 cm³/mol, respectively.

The volume of mixture (Vmix) is the sum of the volume of each substance, which is the number of moles multiplied by molar volume, so:

Vmix = 0.300*57 + 0.200*17

Vmix = 17.1 + 3.4

Vmix = 20.5 cm³

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The expected o-c-h angle in this molecule is degrees. the expected hybridization at the central carbon is
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Each neutral carbon atom contains four valence electrons and may form up to four electron domains. Possible hybridizations include

  • sp^{3}, four electron domains, as in ethane \text{C}_2\text{H}_6
  • sp^{2}, three electron domains, as in ethene \text{C}_2\text{H}_4
  • sp, two electron domains, as in ethyne \text{C}_2\text{H}_2

Molecules of each of the three hybridization demonstrate spatial configurations that would maximizes the separation between the electron domains.

  • Carbon atoms with a sp^{3} hybridization would demonstrate a tetrahedral configuration with a bond angle of approximately 109.5\textdegree{}
  • Carbon atoms with a sp^{2} hybridization would demonstrate a triangular planar configuration with a bond angle of 120\textdegree{}
  • Carbon atoms with a sp hybridization would demonstrate a linear configuration with a bond angle of 180\textdegree{}

Bond angles are characteristic of the spatial configuration of electron domains and identifies the hybridization of the central carbon atom.

Note that each hydrogen atom contains only one valence electron and would form only single bonds. It takes two valence electrons for oxygen atoms to achieve an octet such that each oxygen form only two bonds at a single time. Therefore given the fact that the carbon is bonded to both hydrogen and oxygen, only the following hybridizations are possible

  • sp^{3} in which the oxygen atom forms a carbon-oxygen double bond with the central carbon atom;
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3 years ago
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