How is the evidence from a fire scene collected? What should be avoided?

2 answers:

5 0

Fire scenes are different than regular crime scenes because the evidence that was at the.Evidence from a fire scene is collected by being placed in an air-airtight.Plastic bags should be avoided because they can produce dangerous gases

sveticcg [70]4 years ago

3 0

Answer:

Explanation:

In fire and arson cases evidences like volatile fuel in the sediment debris can be collected. The debris should be collected in an air-tight container like tin or paint box and bottles so as to prevent the evaporation of the fuel. The type of fuel used for setting up the fire is an important evidence.

Plastic bags should not be used because the plastic can react with the fuel components and may react with the fuel components in debris and the evidence will become futile.

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What is equal to the number of particles in 24 grams of carbon-12? 2 moles 2:1 mole ratio 2:1 molar mass 1:2 molar volume

mariarad [96]

Answer:

The answer to your question is 2 moles of Carbon

Explanation:

Carbon-12 means it has a molecular mass of 12g / mol. Mol is defined as the number of grams of an atom in one mol.

To solve this problem, we use proportions

12 g of Carbon ---------------- 1 mol of Carbon

24 g of Carbon -------------- x

x = ( 24 g x 1 mol ) / 12 g

x = 24 / 12