Answer:
DNPH - 2,4-Dinitrophenylhydrazine
Explanation:
This is a chemical compound used for quantitative identification of Ketones and Aldehydes in a sample.Since the urine analysis shows positive results for ketone and aldehydes,this is the test for the this. It is usually marked with yellow/orange precipitate(ppt) (dinitrophenylhydrazone).The latter is formed as a results of condensation reaction.
DNPH is a solid compound whose color changes from red to orange, when used to test for the carbonyl groups.Red when pure.
To conduct the test 1-2drops of the sample is dissolved in 2 ml of ethanol.
This should be added to about 3ml of DNPH,and shake severely for the solute and solvents to mixed up.
Usually, a precipitate should formed afterwards.However,if this did not appear, 15 minutes intervals should be observed for the precipitate( yellow or orange ppt) to appear.
The color of the precipitate depends nature of the carbon molecule or hydrocarbons in the sample. Thus, if the sample is aromatic that is unsaturated hydrocarbon e.g benzene red ppt appears, However, if straight hydrocarbon molecules (aliphatic) Orange ppt appears.
which of the follow actions will help prevent chemical hazards? a. storing chemicals in a separate area, away from food b. serving fresh fruits and vegetables without washing them c. cleaning food preparation areas while food is being prepared d. keeping all chemicals in unlabeled spray bottles
The correct answer is A. Storing chemicals in a separate area, away from food
Explanation:
The exposition or ingestion of chemicals has negative consequences in health including long-term negative effects and even death. Due to this, chemicals are considered a hazard and should be stored and handled appropriately. In terms of storage, one key recommendation is to keep chemicals in a separate area especially away from food and unauthorized personnel. Also, all chemicals should be labeled and keep on appropriate conditions. According to this, an action to prevent chemical hazards is "Storing chemicals in a separate area, away from food" as this prevents chemicals can contaminate food and lead to negative consequences.
The action of 'storing chemicals in a separate area, away from food' will help prevent chemical hazards (Option a).
Chemical hazards can be defined as non-organic substances which are dangerous for human life. It is well known that exposure to chemical hazards may lead to negative health effects or even cause death.These substances (chemical hazards) can be carcinogens, skin irritants, respiratory sensitizers, etc.In conclusion, the action of 'storing chemicals in a separate area, away from food' will help prevent chemical hazards (Option a).
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Section 1 - Question 26
Having high cholesterol can lead to which lifestyle disease?
Heart Disease
Diabetes
Anemia
Migraines
Answer:
Heart Disease
Explanation:
High amounts of cholestoral can clog up your artiries, making it hard for blood to flow throughout your body and get to your heart.
Diabetes is also linked to high levels of cholesterol, but the main diseas associated with it is heart disease.
Agent Martinez wishes to solicit Medicare Advantage prospects through e-mail and asks you for advice as to whether this is possible. What should you tell her?
Answer: d. Marketing representatives may initiate electronic contact through e-mail but an opt-out process must be provided.
The best thing to tell her is that Marketing representatives may initiate electronic contact through e-mail but an opt-out process must be provided.
Medicare Advantage refers to a health insurance plan which gives Medicare benefits through an health insurer.
Since Agent Martinez wishes to solicit Medicare Advantage prospects through e-mail, the advice will be that electronic contact can be initiated by marketing representatives through email but there should be an opt out process.
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Which of these organs is part of the large intestine?
Explanation:
Tell the options plz!!!!!!
Answer:
colon
Explanation:
Mr. Edwards complains of cramps and difficulties with walking. The cramps occur in his calves consistently after walking about 100 yards. After a period of rest, he can start to walk again, but after 100 yards these same symptoms recur. Which of the following are the likely cause of his pain?
a. Coldness and pallor of the legs.
b. Relief of the pain with bending at the waist.
c. Color changes of the skin.
d. Swelling with tenderness of the skin
I would say the answer to the question is D walking while your leg is swelled will cause pain
One of the best ways to prevent the spread of germs is to _______. Question 1 options: wear latex gloves wash your hands get an annual medical screening wear a respiratory mask
Answer:
Hand washing
Explanation:
You cannot wear latex gloves for the rest of your lives
An annual medical screening will not stop germs from entering your body
Wearing a mask will still allow germs to spread via hand touching, etc
Washing hands often enables your body to get rid of germs fast
2. In the world today, how many people are estimated to be infected with the HIV virus? A. O 27.4 million B. O 87.8 million C. O 33.6 million D. O 97.2 million
Answer:
33.6 million
Explanation:
According to UNAIDS : Number of People with HIV—There were approximately 38 million people across the globe with HIV/AIDS in 2019. Of these, 36.2 million were adults and 1.8 million were children (<15 years old).
Which component of bone gives it the ability to
produce blood cells?
epiphyses
osteocytes
bone marrow
collagen fibers
Answer:
Bone marrow is the answer,pls check If I am correct
Answer:
The correct answer is bone marrow.
Explanation:
Bone marrows are used to produce blood cells in the body.
Hope this helps....
Have a nice day!!!!
A food worker uses a spatula to flip a hamburger patties as they cook on a grill. What must she do before using this spatula to assemble the completed burgers
Answer:
The correct approach will be "Clean and sanitize it".
Explanation:
Then use it to construct the assembled burgers, she will disinfect the spatula, because it isn't a reasonable sanitary practice to use another spatula for anything, throughout this case, they typically provide single spatula between each processing point.Such acts are attributable to something like the fulfillment of food protection throughout fast food establishments since the food could get contamination and perhaps other microbes considered suitable for consumption. On convenient food companies also this will escalate more frequently.Quick food franchises are sometimes continuously supervised, since food safety might be too conveniently violated in this form of company, such as handling a spatula while jeans, for instance.Ollie wants to sign up with an online social network called TeensMeet, which other kids at school have joined. The TeensMeet site asked Ollie for the following personal information: his full name, the name of his school, the city where he lives, his age, and his favorite music. Which pieces of information should Ollie give to stay safe? A. his first name, school, city, and an age older than he is B. his first name or nickname and his favorite music C. his first name, real age, city, favorite music, and school
Which pieces of information should Ollie give to stay safe?
A. his first name, school, city, and an age older than he is
B. his first name or nickname and his favorite music
C. his first name, real age, city, favorite music, and school
B). His first name or nickname and his favorite music.
For Ollie to stay safe, he should only enter his first name or nickname and his favorite music. It's important to never share specific details, such as school name and city. This details can be traced and it can put Ollie in danger.
The twelve-year old boy has fractured his arm because of a fall from his bike. After the injury has been casted, what assessments are the least important?
Answer:
Thermometer, Needle, Surgery
Explanation:
I'm honestly giving you a gucci guess
Studies report that the differences in the time obese and lean people spend lying, sitting, standing, and moving account for about_______cals per day
Answer:
approximately 350-500 calories per day
Explanation:
It has been shown that obese and lean people's calorie needs are different despite having the same daily activities (for example, sitting and walking). These variations can be associated with different factors including height, weight, sex, age, physical condition, muscle mass, etc. At comparable body weight, lean people need less energy than obese. In this regard, it is important to note that people that have regular exercise routines burn fewer calories when doing the same activity. Moreover, lean people have proportionally more muscle mass than obese people, and thereby they are capable of burning more calories in the same unit of time.
What do you wish more teachers knew about their students?
Answer:
that is not helpful for us to ask "Can I go to the restroom?" and then the teachers correct us by saying "Don't you mean, MAY I go to the restroom?"
What do psychiatrists do?
Answer:
A psychiatrist is a medical doctor (an M.D. or D.O.) who specializes in mental health, including substance use disorders. Psychiatrists are qualified to assess both the mental and physical aspects of psychological problems.
People seek psychiatric help for many reasons. The problems can be sudden, such as a panic attack, frightening hallucinations,or hearing "voices." Or they may be more long-term, such as feelings of sadness, hopelessness, or anxiousness that never seem to lift or problems functioning, causing everyday life to feel distorted or out of control.
Explanation:
Answer:
A psychiatrist is a special type of doctor focused on mental health. They can diagnose, treat, and try to prevent mental disorders. They can assess symptoms, conduct certain procedures, prescribe medicine, refer you to other clinics, provide advice and opinions, and create plans to manage a disorder.
Someone might decide to go to a psychiatrist if they are having prolonged feelings of sadness, if they have panic attacks, or if they are hallucinating.
Basically, psychiatrists are mental health experts!
20 POINTS IF YOU ANSWER NOW!!!!!! Which factor is important to consider when buying a home air conditioning unit that is supposed to last several years? A.) Advertising Campaign B.) Capacity C.) Warranty plan D.) Design
Answer:
b
Explanation:
how how it functions would be the most important thing for me
14. Which of the following is NOT a blood borne pathogen? A. O syphilis B. O malaria C. O diphtheria D. O varecella virus
Answer:
I believe the answer is D. Varecella Virus
Explanation:
Diphitheria,
transmitted through consumption of infected food
All people with eating disorders have disordered eating; but it is not necessarily true that everyone with disordered eating qualifies or meets the diagnostic criteria of having an eating disorder. Disordered eating is defined as mild and short-term changes in eating patterns that:_______a. Can improve self esteem.b. Can occur in response to a stressful event or an illness.c. Can include a desire to modify the diet for a variety of health and personal appearance reasons.d. Must require in-depth professional attention.
Answer:
B
Explanation:
The ______ nervous system has two parts. The voluntary nervous system is also known as the _____nervous system. The autonomic nervous system is also called the _____or involuntary nervous system.
Answer:
the peripheral nervous system has two parts. the voluntary nervous system is also known as the somatic nervous system. the autonomic nervous system is also called the vegetative or involuntary nervous system.
Explanation:
Answer:I got it right on my test lol. Good luck :)
Explanation:
A client has a BMI of 24.8, which of the following categories would they fall into?
Answer:
Normal weight
Explanation:
What do all cells need in order to function
Answer:
food and exygen.....as oxygen breakes food in small parts
Demonstrates the skill , qualities,proper judgment,and behavior of a person to perform a job with these requirements
Answer:
a health practitional
When must the cleaning step occur when cleaning and sanitizing in a three compartment sink?
Answer:
The second compartment
Explanation:
The first sink is for rinsing, the second for cleaning, and the third is for sanitizing.
Exercise promotes general good health in many ways. Not only does it make you healthier, but it also makes you more fit. It makes you physically able to achieve more, and it also makes you feel better about yourself among many other things.
Answer:Yeah it does..
Explanation:
Based on these descriptions, which man is impotent? Jacob has a low sperm count. Reuben has a blocked vas deferens. Leon is unable to sustain an erection. Troy’s testes have not descended into the scrotum.
Answer:
Reuben has a blocked vas deferens
Explanation:
Answer:
The answer is C: Leon
Explanation:
Impotence is described as the inability in a man to achieve an erection or orgasm.
the law of overcompensation and overload allows for which of the following in regards to intensity
Answer:
A. Progressively increase over a period to time
Explanation:
i found option that is
A. Progressively increase over a period to time
B. Progressively decrease over a period of time
C. Remain the same
D. Acute decrease over a period of time
solution
There are some laws fitness and traininglaw of individual differenceslaw of overcompensationuse/ disuse lawgeneral adaptation syndrome (GAS) lawlaw of overloadspecificity lawspecific adaptation to imposed demands (SAID) lawOverload theory says you should gradually increase intensity, duration, and exercise time to see an improvement in strength, endurance, and muscle size. Overcompensation: When the body recovers from injuries or training, it does not stop there. To prepare for future tensions, it will be a little stronger than before. This process is called overcompensation. Thus the overcompensation and overload rule allows for a gradual increase in intensity over a period of time.Answer:
Progressively Increase Over Time
Explanation:
The overload principle is one of the seven big laws of fitness and training. Simply put, it says that you have to increase the intensity, duration, type, or time of a workout progressively in order to see adaptations. The adaptations are improvements in endurance, strength, or muscle size.
Which of the following is often a community opportunity to participate in an individual sport? a. baseball b. golf c. soccer d. volleyball
Answer:
Golf
Explanation:
In golf, you do not play on a team, you play individually against others.
Answer:
d. golf
Explanation:
its the only one that you play by yourself because in volleyball, baseball, and soccer you all play on a team.
If you need to perform hand hygiene and do not have access to running water, using your personal anti-bacterial lotion is sufficient.
a. True
b. False
Answer:
True.
Explanation:
The anti-bacterial lotions have the same qualities as we have in our handwash. These lotions are generally used after washing hands with soap or handwash to protect our hands from preventing infections. Though using lotion do not remove dirt and impurities properly from our hands they can best kill the germs of our hands. Moreover, if one does not have running water to wash hands s/he can use an anti-bacterial lotion which is very effective in preventing possible infections.
Jake used to go surfing with his friends several times each week. Recently, he has been spending a lot of time playing computer games instead of surfing. What do you predict will be a result of this change? (1 point)
Select one:
a. An increase in his appetite and an increase in his stamina
b. A decrease in his stamina and an increase in his energy level
c. An increase in his energy level and decrease in his appetite
d. A decrease in his stamina and a decrease in his energy level
Answer:
The answer is (A)
Explanation:
Answer:
Option;'d' is correct.
Explanation:
When he spends a lot of time in front of a computer he loses his stamina and also his energy level decreases.
Which set of steps correctly describes the movement progression for a regular pushup?
A
1. While standing, bend forward to touch toes.
2. Lower body while keeping back straight.
3. Allow body to rest on the floor for a second.
4. Push through arms to raise body, keeping back straight
B
1. Place palms shoulder-width apart.
2. Tighten core and straighten back.
3. Push up through arms until elbows are straight.
4. Bend elbows, lowering the body with control.
5. Stop several inches above the floor
C
1. Walk backward until body is parallel to the floor.
2. Push up through arms until elbows are straight.
3. Hold for three seconds at the height of the push-up.
4. Lower quickly to the floor, and then prepare to repeat.
D
1. Lie relaxed on the stomach.
2. Place palms on each side of the head.
3. Push up through the arms.
4. Bend at the hips to take pressure off the lower back.
5. Lower arms until body comes to rest on the ground.
Answer:
It is B
Explanation:
this is because C says you hold it for 3 seconds and your walking backwards which is not true for doing a push up. A is standing and doing an exersice so thats not a push up. D is saying you lie on your stomach. Thats also not a push up.
Push-ups have just a minor direct effect on the abdominal region because they primarily target the muscles of the upper body. Thus, option B is correct.
What are the benefits of doing push-ups?If and only if the calories burned during exercise are sufficient to convert fat loss and enhance abdominal muscle, push-ups can help reduce belly fat.
The push-up aids in strengthening and muscle growth across the upper body.
Improved cardiovascular health and greater shoulder joint support are two more potential advantages. Daily push-up practice does carry certain hazards, though. These include elbow injury, wrist pain, and lower back pain.
Targeted muscles include the pectoralis major in your chest, the triceps in your arms, and the shoulders (especially the scapular changing muscles).
Therefore, place palms shoulder-width apart describes the movement progression for a regular push-up.
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Which type of drug is made from poppy seeds and is used in some prescription medicine to relieve severe pain? A. barbiturates B. marijuana C. opiates D. stimulants
Answer:
C. Opiates
Explanation:
Answer:
C. opiates
Explanation:
