Rechargeable battery

Analyse technologies and processes relating to electrochemistry, and their implications for society, health and safety, and the environment
Develop an information brochure, infographic or webpage that could be found on a website promoting the benefits of renewable energy. Your information brochure/infographic/webpage should include:
• An overview of the electrochemical object.
• The information you learned through researching your inquiry questions.
• The implication of this electrochemical object for society, health and safety and the environment.

 

 

Hydrogen fuel cell

 

Analyse technologies and processes relating to electrochemistry, and their implications for society, health and safety, and the environment
Develop an information brochure, infographic or webpage that could be found on a website promoting the benefits of renewable energy. Your information brochure/infographic/webpage should include:
• An overview of the electrochemical object.
• The information you learned through researching your inquiry questions.
• The implication of this electrochemical object for society, health and safety and the environment.

 

 

Standard alkaline battery

 

Analyse technologies and processes relating to electrochemistry, and their implications for society, health and safety, and the environment
Develop an information brochure, infographic or webpage that could be found on a website promoting the benefits of renewable energy. Your information brochure/infographic/webpage should include:
• An overview of the electrochemical object.
• The information you learned through researching your inquiry questions.
• The implication of this electrochemical object for society, health and safety and the environment.

 

 

Differences between stimulants vs. depressants

 

Write a one page, double-spaced summary and answer these questions:

What are the differences between stimulants vs. depressants?
What are some factors that encourage individuals to abuse drugs?
Have you ever encountered someone who you suspected was abusing drugs? Why did you suspect that?
After reviewing the information above do you feel that you have a better understanding of what signs to look for?
How will this information inform your work in the healthcare field?

 

Chemistry questions

  1. A concentrated phosphoric acid solution is 85.5% H3PO4 by mass and has a density of 1.69 g/mL at 25°C. What is the molarity of H3PO4? What is the mole fraction of urea, CO(NH2)2, in a solution prepared by dissolving 5.6 g of urea in 30.1 g of methanol, CH3OH? How will an understanding of this concept help you in your healthcare career?
  2. Describe the blood hydrogen carbonate buffer system.

-What happens when blood acidity rises? Show the equation.

-What happens when the blood becomes more alkaline? Show the equation.

-Distinguish between strong and weak acid. List some clinical uses of these acids and write equations for their dissociation in water.

-Did you find any of these to be a challenge? Why or why not?

Chemistry.

1.) For the given fact below, which subsequent true/false statement is true?
Fact: Mel received a C+ in Chemistry.
a. Mel does not like chemistry
b. Mel did pass the class
c. Mel did not achieve a passing grade for the class
d. Mel took math this semester
2.) What percentage of people eat fruits and vegetables and abstain from smoking, but do not partake in physical activity?

3.) Indicate the most appropriate if-then statement that the English sentence represents:
People 18 or older can vote in a Federal election.
a. If a person is 18 years old or older, then the person can vote in Federal elections.
b. If a person is 18 years old or younger, then the person can vote in Federal elections.
c. If a person does not vote in a Federal election, they are not 18 years old or older.
d. No if-then statement would cover this situation.

4.) Given: If X, then not Y. If not Y, then Z.
Y is true. So:
a. X is unknown, Z is unknown
b. X is unknown, Z is true
c. X is false, Z is unknown
d. X is true, Z is true

5.) Using everyday knowledge, which of the following statements is an if-then statement whose reverse is not correct?
a. if the TV is unplugged, then the TV will not turn on.
b. If the light bulb was just turned off, then the light bulb is not hot.
c. If a car is put into reverse, the car should move backwards.
d. If the sun is shining, then the weather is hot.

6.) Using everyday knowledge, indicate whether the if-then statements are correct forward-only or both forward and reverse.
Statement 1: If Bob is Sally’s spouse, then Sally is Bob’s spouse.
Statement 2: If the light is red Northbound, then the traffic is stopped.

7.) Given: If A AND B, then C. Given: The if-then statement’s reverse isalso correct.
If A is True, B is True, what is C?
8.) What pages will be favored for the following search terms:
Chevrolet AND Corvette

9.) The rules for a football player receiving a yellow flag for pass interference are as follows:
IF a defensive player
Holds the receiving player back from moving forward to catch the pass
OR pushes the receiving player away from the pass
OR does not look back toward the incoming ball
OR trips the player intentionally
OR grabs the receiving players arm before the ball arrives
THEN the player should receive a yellow flag and and the ball is placed at the spot of the pass interference.
If the defensive player follows very closely to receiving player without impeding his forward progress, does look back up the field to track the incoming pass, but the receiving player does not catch the ball, then the defensive player:

10.) Given the true/false statements are true (facts), select the best logical induction made from those statements:
Betsy likes oranges. Jose does not like oranges. Benjamin likes oranges.

Anhydrous ammonia

  1. Ammonia is a colorless gas that is easily recognized because of its pungent odor. Ammonia is often encountered as anhydrous ammonia. Describe anhydrous ammonia and at least three of its commercial uses. When there is a release, explain why emergency responders should not apply water directly to the release of aqueous ammonia. Provide its chemical reaction with water.
    Your response must be at least 75 words in length.
  2. The 8-hour time-weighted average limit set by the Occupational Safety and Health Administration (OSHA) for carbon monoxide (CO) is 50 ppm. The OSHA regulation at 29 C.F.R. §1910.1000(d) requires employers to determine the cumulative exposure of workers to certain gases over an 8-hour work shift using the formula below.
    Formula to determine cumulative exposure of workers to certain gases
    Where:
    E = equivalent exposure for the work shift
    C = concentration during any period of time in which the concentration remains constant
    T = duration of time in hours of the exposure
    The regulation further stipulates that no employee can be further exposed to the gas when the value of E exceeds the 8-hour time-weighted average limit set for the given substance. Using the formula above, determine if the employer complied with this regulation if a worker is exposed to CO concentrations throughout the workday as follows: 45 ppm for 3.25 hours; 75 ppm for 2.5 hours; 50 ppm for 1.5 hours and 60 ppm for 45 minutes. Explain CO poisoning and the interaction of CO with hemoglobin.
    Please show your exposure calculation, not just your calculated answer. Your response must be at least 75 words in length.
  3. In the biological treatment of wastewater, microorganisms break down the organic matter, such as food, oil, and human waste, in the wastewater and forms CO2 and microbial biomass. When firefighters combat a fire near a wastewater treatment plant where agricultural pesticides are involved, explain why the wastewater treatment operators are notified. Also, explain why there are fewer inorganic pesticides that are encountered today.
    Your response must be at least 75 words in length.