Which is an acceptable Lewis structure for a diatomic nitrogen molecule?
OA NEN
OB.
N
N
O C.
:N
N:
OD.
NEN
OENEN

Answer:

:N:::N:

Explanation: 10 valence electrons betwwen the 2

need an octet

and N needs 5 for a neutral formal charge

An acceptable Lewis structure for a diatomic nitrogen molecule is

:N:::N: .Option C is correct. This is further explained below.

Lewis structure for a diatomic nitrogen molecule simply refers to the triple bond exists between two nitrogen atoms in the N2 Lewis structure.

In conclusion, The nitrogen molecule is diatomic, which means it is made up of two atoms of the same element.

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The vapor pressure of liquid octane, C8H18, is 40.0 mm Hg at 318 K. A sample of C8H18 is placed in a closed, evacuated container of constant volume at a temperature of 448 K. It is found that all of the C8H18 is in the vapor phase and that the pressure is 71.0 mm Hg. If the temperature in the container is reduced to 318 K, which of the following statements are correct?

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Two identical spoons are electroplated with Ag or Cd through the use of the electrolytic cells. A current of 5.00A was supplied to each cell for 600. seconds, and the masses of the spoons before and after the electroplating were recorded. Write down the mathematical equations can best be used to account for the much larger increase in mass of the spoon electroplated with Ag compared with the spoon electroplated with Cd.

Read each question carefully, and answer yes or no to each one. At the end of each section, follow the directions to score your answers (pay close attention as the directions for scoring may change for each section). After you complete the entire assessment, total the points from all seven sections. This will give you a total health score. The higher the score, the more healthy your lifestyle. If you feel you have a low score, look back through the assessment and identify areas where you can change your unhealthy habits, and explain what changes you would make and why. Write your assessment in the essay box below.

Section 1: Physical Fitness
Do you exercise or play a sport for at least 30 minutes three or more times a week?
Do you stretching before and after exercising?
Do you warm up before exercising and cool down afterwards?
Do you think that you are at a healthy weight?
Are you mostly happy with the way your body looks and feels?
Do you think you have enough energy?
Give yourself one point for each No response and two points for each Yes response. Section score: ____

Section 2: Family History
Do you have a family member who:

has high blood pressure?
has diabetes?
has heart disease?
has cancer?
is extremely overweight?
Give yourself one point for each Yes response and two points for each No response. Section score: ____

Section 3: Hygiene and Medical Care
Do you floss your teeth every day?
Do you brush your teeth at least twice a day?
Do you visit the dentist at least once a year?
Do you use sunscreen?
Do you know basic first aid?
Are all your immunizations current?
Do you get your vision and hearing checked each year?
Do you see the doctor for a check-up once each year?
Do you feel you get enough sleep at night?
Do you know the warning signs for cancer?
Give yourself one point for each No response and two points for each Yes response. Section score: ____

Section 4: Nutrition
Do you eat a lot of red meat or eggs?
Do you add salt to your food?
Do you add sugar to your food?
Do you eat a lot of high-fat or high-sugar foods?
Do you add butter or cheese to your food?
Do you choose fried foods more often than baked or broiled foods?
Do you drink caffeinated drinks, such as coffee or sodas?
Do you skip meals?
Give yourself one point for each Yes response and two points for each No response. Section score: ____

Section 5: Drug Use
Do you smoke or chew tobacco?
Do you drink alcohol?
Have you ever used marijuana or other illegal drugs?
Have you ever abused a prescription drug?
Give yourself zero points for each Yes response and two points for each No response. Section score: ____

Section 6: Safety
Have you ever ridden with drivers who were under the influence of alcohol or drugs?
Have you ever ridden with drivers who speed or disobey traffic laws?
Do you ever forget to wear your seat belt?
Do you ever forget to wear a helmet when riding a bike or skateboarding?
Do you ever play with matches or hazardous materials?
Is there a gun in your house?
Give yourself zero points for each Yes response and two points for each No response. Section score: ____

Section 7: Emotional and Social Health
Do you have hobbies or activities that you enjoy?
Do you give your best effort when doing your work?
Do you find it easy to laugh?
Do you express anger in an appropriate way?
Do you easily fall asleep at night?
Do you share personal problems with someone you trust?
Do you feel well liked by others?
Do you have someone you can turn to if you need help?
Are your family members and close friends in good health?
Are you generally happy?
Give yourself one point for each No response and two points for each Yes response. Section score: ____

Total Health Score: ____

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ontrast the mechanisms of the following two reactions, the dehydration and condensation of ethanol. Part A The first step of dehydration of ethanol is _______. The first step of condensation of ethanol is ________. The first step of dehydration of ethanol is _______. The first step of condensation of ethanol is ________. protonation, deprotonation protonation, protonation deprotonation, protonation deprotonation, deprotonation Request Answer Part B Dehydration of ethanol is __________, condensation of ethanol is __________. Dehydration of ethanol is __________, condensation of ethanol is __________. a substitution, an elimination an elimination, a substitution a substitution, a substitution an elimination, an elimination Request Answer

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