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2 years ago

Lividity in a dead body is caused by capillaries decaying due to de-oxygenation.

2 answers:

5 0

Livor mortis refers to the bluish-purple discoloration (lividity) under the skin of the lower body parts due to gravitation of blood after death. ... Dark pinpoint spots (Tardieu spots) are seen when capillaries rupture due to increased gravitational pressure (e.g. in the legs of a hanged person)

lions [1.4K]2 years ago

5 0

Explanation: Lividity is unnatural color or discoloration of the skin after death. It starts within 20-30 minutes of death, but is not visible by human eye until two hours. Amount of reduced haemoglobin determines the intensity of color. Capillaries bursts because of increased gravity.The body parts which are in contact with any object or ground are not affected by this because capillaries are compressed.

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Which has the greater mass? 1 l copper or 1 l silver?

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SILVER!!!!!!!!!! ITS SILVER ITS HEAVY

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3 years ago

using the chemical stoichiometry, determine the number of moles of carbonic acid that can be produced from 4 mol of NaHCO3 and 8

Pavlova-9 [17]

Reaction is NaHCO3 + HCL = H2CO3 + NaCl
the ratios are 1:1

the 8 moles of HCl are in excess

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hope that helps

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2 years ago

Read 2 more answers

4. What is the substance called that dissolves the other substance in a solution?

blagie [28]

Answer:

Solvent

Explanation:

When one substance dissolves into another, a solution is formed. A solution is a homogeneous mixture consisting of a solute dissolved into a solvent

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2 years ago

A dehumidifier takes water vapor from the air by passing the moist air over a set of cold coils to perform a state change. How d

aksik [14]

A fan pulls in air from the surrounding area, which typically has high moisture levels.

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3 years ago

aseous methane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 5.5 g of methane is

maksim [4K]

Answer:

There is 9.6 grams of CO2 produced

Explanation:

Step 1: Data given

Mass of methane = 5.50 grams

Molar mass of methane = 16.04 g/mol

Mass of oxygen = 13.9 grams

Molar mass of oxygen = 32.0 g/mol

Step 2: The reaction

CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)

Step 3: Calculate number of moles

Moles = mass / molar mass

Moles methane = 5.50 grams / 16.04 g/mol

Moles methane = 0.343 moles

Moles oxygen = 13.9 grams / 32.0 g/mol

Moles oxygen = 0.434 moles

For 1 mol CH4 we need 2 moles O2 to produce 1 mol CO2 and 2 moles H2O

O2 is the limiting reactant. It will completely react (0.434 moles).

There will react 0.434/2 = 0.217 moles CH4

There will remain 0.343-0.217 = 0.126 moles CH4

There will be produced 0.434 moles of H2O and

0.434/2 =0.217 moles of CO2

Step 4: Calculate mass of products

Mass = moles * molar mass

Mass CO2 = 0.217 moles ¨44.01 g/mol

Mass CO2 = 9.6 grams

Mass H2O = 0.434 moles * 18.02

Mass H2O = 7.8 grams

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2 years ago