SCI 100 Module Five Activity Template

1. What are fibers and where are they found? How could forensic scientists use fibers to solve a crime?   2. Define the word probative. What is the probative value of a fiber in a forensic investigation?     3. Describe steps you would take from collecting a fiber(s) at a crime scene to performing an analysis to determine its identity.     4.  Which of the 6 fiber types you observed are natural? Which are man-made?     5.  Are fibers classified or individualized? Why?

Please answer the following question:

Define each of the followings: (1) environmental science, (2) Environmental Chemistry, (3)Lithosphere, (4) Biosphere, (4) environmental biochemistry, (5) toxicological chemistry, (6) Ecology .

Which branch of chemistry would be the most relevant to a learner that plans on becoming a nutritionist? A physical chemistry B C D biochemistry inorganic chemistry nuclear chemistry

Please do Question 2

Read the questions carefully and answer them comprehensively.

What is the difference between single use, limited use and reusable chemical protective garments?

Climate Change: Which of these is an example of a human activity that causes climate change? O Burning fossil fuels O Removing greenhouse gases O Using alternative energy sources O Increasing ash particles from volcanoes

Can you help me answer this type of question from my study review package please

What is the purpose of Safety Data Sheets? Why are these important when handling common food service chemicals? What information/components are generally included? How do Safety Data Sheets vary?

Please answer the following question:

Read the buret

Question 20 of 26 > While driving your rental car on your vacation in Europe, you find that you are getting 13.4 km/L of gasoline. What does this value correspond to in miles per gallon? 13.4 km/L = mi gal about us privacy policy terms of use contact us help careers DD F12 F11

+ terface/acellus_engine.htm?ClassID=1467683063 Use the data below to determine the mass ratio of iron to oxygen for compound 2. Compound 1 2 Et onal Academy of Science. All Rights Reserved. Mass Fe (grams) 15.55 20.98 [20:1 Enter the answer that belongs in the green box. Iron Ratio Cmpd 2 Mass O (grams) 4.45 9.02 Sh Enter

What are the sources of these raw materials: 500 g calcium polysulphide and 1.5 kg hydrochloric acid? Additionally, determine whether each raw material is natural or synthetic.

Why are ducks waterproof? It’s because they produce copious amounts of oils from their uropygial glands and spread it across their feathers. In this exercise, we’ll be investigating the molecular structure of one of these preen oils to determine how it keeps ducks dry. Q.5 - Preen oil is actually a complicated mixture of many different organic compounds, such as the structure seen previously.. Ornithologists have determined that birds often use preen oil compounds for scent recognition. Below, several different chemicals isolated from preen oil are shown, along with their vapor pressures at room temperature. p-cymene has the highest vapor pressure, meaning it is the most easily evaporated compound of the three listed. Explain why p-cymene has a higher vapor pressure at room temperature compared to the other compounds. Make sure to explain what holds the p-cymene in the sample. (Image attached)

The study of detecting small quantities of substances in samples would most likely be performed by a chemist in the branch of chemistry known as ___ . organic chemistry biochemistry inorganic chemistry analytical chemistry physical chemistry

Which activities are likely to cause contamination of stock chemicals in the laboratory?

Chemicals usually have both physical and health hazard. Identify the following if it b hazard. Health Hazard Mutagen Physical Hazard Barbeque have this benzo (a] pyrene that can cause cancer Physical Hazard Fire Toxins Physical Hazard Chemical burn Physical Hazard Explosives Large amount of smoke being inhaled Physical Hazard Spill of caustic soda in your skin Physical Hazard Health Hazerd Dlog