when 100cm³ of distilled water at 20°C is mixed with 100cm³ of pure ethanol at 20°C, the resultant mixture has a volume of only 193cm³​

Give reason why this is so.

Answer:

See Explanation

Explanation:

If we look at the question closely, we will notice that 100cm³ of distilled water and  100cm³ of pure ethanol were mixed with both solutions at a temperature of 20°C. The resulting solution was found to occupy only 193cm³ instead of 200cm³​.

The reason for this is the great degree of intermolecular hydrogen bonding between ethanol and water molecules. This causes the molecules to draw closer and stick around each other causing the volume of the solution to reduce as observed above.

1: a more active person will pump more or less blood per beat?

2: this means that a more or less active person heart works more efficiently?

help ;;

Lymphocytes known as blastocysts help make antibodies that fight infection. Please select the best answer from the choices provided T F Ayúdame amigo

Help me on this please​

what is the meaning of life?Ω

6. PLEASE HELP! I’ll mark brainliest

What is the difference between individual and public health?

what is The relationship between burning food outside the body and food reacting with oxygen inside the body is ​

What is a diet?

A.Diet is all the food and drinks you eat on a daily basis.

B.Diet is the drinks you drink on a daily basis

C.Diet is the water you drink on a daily basis​​

If George has stopped losing weight before he meets his weight loss goal, he should
stop exercising for a while
increase his wind sprints
do more cardiovascular exercise
make more realistic goals

PLEASE HELP....

9. the ________ are protrusions into the lumen inside the small intestine that create an increased surface area for nutrient absorption.

a villa
b rugae
c sphincter
d uvula

10. imagine that you are tracking the path of fecal matter as it moves through the large intestines. which section of the large intestine comes immediately after the cecum?

a Sigmund colon
b descending colon
c ascending colon
d transverse colon
e rectum

11. GERD is a disease characterized by:

a gastric acid washing backwards up into the esophagus
b malabsobption of wheat gluten
c auto-immune attack on the bowel
d the formation of stones in the gallbladder ​

True or False When you keep your health triangle in balance, you are working towards WELLNESS.

if a person cut but it doesn't hurt them are they rly human

To reduce the risk of fire, prohibit _____ in the restrooms, storage areas, and food preparation areas.


unused electrical equipment

oils and fats

aerosol cans

smoking

Which of the following in NOT a healthy way to deal with conflict

Answer as many as you can you don't need to do all though from the movie My All American:
1. Describe Freddie’s self-esteem from the time he was little kid and any changes that may have occurred as his life continued.
2. What was Freddie’s best quality? Why?
3. If you were Freddie, how does the story go?
4. Is self-esteem/ self-worth important in our daily life? Why?
5. Is life arbitrary? How have you heard others respond to the question about bad things happening to good people? Have they helped you make sense of the world or made it more difficult to understand?
I would appreciate if you did all though lol

A young man was diagnosed with a bacterial bladder
infection and was prescribed antibiotics. He was told to ingest one pill every
day for one week. Antibiotics are a type of medicine that kill bacteria that
cause disease. Sometimes antibiotics kill good bacteria too. Two weeks
later the young man goes back to the doctor. He cut himself accidentally
and the bleeding won’t stop. Why could the young man have this new
problem?

What are Stimulants and give an example of a type of stimulant drug?

The pulmonary arteries carry____blood

(A)oxygen-poor
(B)oxygen-rich
(C)carbon-dioxide-free
(D)carbon-dioxide-rich

Someone plz help

Why do you think it is necessary for the FDA to monitor drug advertising claims?

I drink monster 1-2 times a day (7 days a week), I'm 4'9" and 80 pounds (eating disorder, please don't remind me I'm built like a five year old) but do you think monsters could have a negative affect on my health? If so, what kind of problems would occur?

What do you predict might influence people to make certain food choices?
What are at least two internal influences and two external influences on your food choices?
Explain how you can use this information to make healthful food choices.

A location that easily ignitable fibers or materials producing combustible
flyings are handled, manufactured or used is known as:
Class I, Division 2
Class II, Division 1
Class II, Division 2
Class III, Division 1

Which phase of meiosis I is responsible for dividing the cytoplasm?
O prophase!
O metaphase!
O anaphase
O telophasel

Calories are contained in a food’s fat, carbohydrate, and protein.

True
False

WILL MARK BRAINLYIST IF CORRECT PLEASE HELP

What is perception as it pertains to mental health?

i only have 15 mintes left please help 100 points




1. Sally wants to make time to exercise because it's her time for herself.

2. How you think about exercise helps decide if you'll do it or not.

3. Dennis is motivated to exercise because he wants to build muscle in his chest and arms.
4. It's true that you'll have obstacles and setbacks in your exercise.

5. Jillian thinks about how much progress she is making each time she works out.





exercise as a personal reward
motivation being a mindset
there not being such a thing as perfection
positive self-talk
focusing on the ultimate goal

Proper amounts of "high protein" foods are needed by people of all ages primarily for
Select one:
of
estion
a. building bones and teeth
b. building and repairing body tissues
c. guarding against overweight
d. building resistance to disease

EEGs, or electroencephalograms, are often conducted to diagnose epilepsy. The word “electroencephalogram” means

Fats that are solid at room temp and can cause heart disease are called
Unsaturated Fats.

True
False