Questions 5 to 7 are based on the following activity.
A balloon is fitted to the mouth of an empty glass bottle. The bottle is placed in water being heated in a pan. The balloon slowly gets inflated as shown in the photograph.
5. The balloon gets inflated because
(a) it gets heated and expands
(b) the air inside the bottle gets heated and expands
(c) the bottle gets heated and expands (
d) the water from the pan enters the balloon
6. What do you expect to happen if the bottle is taken out?
(a) The balloon will get deflated
(b) The bottle will break
(c) The balloon will burst
(d) None of these
7. The changes taking place in the balloon when the bottle is placed in the hot water and tak of it are (a) reversible
(b) irreversible
(c) chemical
(d) both physical and chemical E. Complete the following.
1. When you put some glucose in your mouth, your tongue feels cold because the dissolving glucose in saliva is an ...... change.
2. The slaking of
Answer and Explanation:
First, observe and understand what is happening.
1. A balloon is on an empty glass bottle, which is placed in water that is being heated.
2. The balloon starts to become inflated, or filled with air.
5. The balloon gets inflated because:
(B) The air inside the bottle gets heated and expands.
The bottle is already filled with air (due to it being exposed before putting the balloon on it to cover the bottle). When air is heated, the molecules start to move around rapidly, coming into contact very frequently and wildly, which makes the air expand into the balloon, ultimately inflating it.
6. What do you expect if the bottle is taken out?
(A) The balloon will get deflated.
Due to the air in the bottle no longer being heated, the molecules will start to slow down, and the balloon will deflate.
7. The changes taking place in the balloon when the bottle is placed in the hot water and taken out of it are:
(A) Reversible
Although heat is used in the process, the air itself isn't changed chemically, only physically. The air can go from being at normal temperature to hot to being hot and back to normal temperature. Even if you were to freeze the air/make the air cold, the air can change back to normal temperature when heating the air.
1. When you put some glucose in your mouth, your tongue feels cold, because the dissolving of glucose in saliva is an endothermic change.
Endothermic reactions are where the reactants absorb the heat from the surrounding area to form the product. The glucose absorbs the warmth from your tongue, and as a result you feel the coldness of the glucose.
#teamtrees #PAW (Plant And Water)
I hope this helps!
From the above figure which one is correct
Please answer me this question fast
Stay Safe,Stay Healthy and Stay Happy
Explanation:
Your answer is in the attachment
hope it is helpful to you
✌️✌️✌️✌️✌️✌️✌️
I am something that has a plug
But there’s no electricity.
I’m in your bathroom and kitchen
But what could i be?
Answer:
water tap
its it correct
who's up to talk PEOPLE
ऩाऱा लेखन - 1.कोरोऩा 2.दहिंदी ददवस 3.जल सिंरक्षण ( 20से 30 शब्दों में ललखखए।)
Answer:हिन्दी दिवस आजकल हमारे देश में एक औपचारिकता मात्र रह गया है लेकिन आज भी कुछ संस्थानों में हिन्दी पखवाड़ा, हिन्दी सप्ताह और हिन्दी दिवस जोर-शोर से मनाया जाता है। ज्यादातर संस्थानों में प्रतियोगिताएं आयोजित की जाती है। प्रस्तुत है कुछ सरलतम पंक्तियां हिन्दी दिवस के लिए
Explanation:
Dead sea is located between which two countries.
Answer:
Israel and Jordan.
Explanation:
I learned it in 7th grade
help me plz (नेपाली)
parichami=biseshan
Kishan= नाम
Ra=समयोजक
ubjaucha=कृयापद
What happens when: Magnesium burns in oxygen
it produces light bright enough to blind you temporary
This question has two parts. First, answer Part A. Then, answer Part B.
Part A: What is Maddie’s first idea about how to help?
A.
Maddie wants to open an emergency shelter for lost pets.
B.
Maddie thinks about opening a lemonade stand.
C.
Maddie asks her parents for money.
D.
Maddie thinks about collecting food from her classmates.
Part B: Maddie then thinks that her first idea will not work. Which sentence best supports this conclusion?
A.
Her parents are looking to save money.
B.
She needs to convince classmates to give food.
C.
She only made $2.50 selling lemonade.
D.
Her father had his hours cut.
Answer:
Hi Lovelys!!
The answer is down below!!
Explanation:
Answer for part A: B. Maddie thinks about opening a lemonade stand.
Reason: Because Maddie really cares about animals, she wants to help. She resolves to find a way. She wonders what she can do to make a difference. She might open a lemonade stand.
Answer for part B: C. She only made $2.50 selling lemonade.
Reason: Then she remembers she did that once. She sold a total of ten glasses of lemonade and made $2.50. It would not be enough to buy much food for the animals.
Hope this helps!! =3
Have a wonderful day, evening, or night!!
what is something that you've created when you were a child?
Answer:
I created a writing journal to help me go throught my anxiety and ptsd
Explanation:
Answer:
food combinations
Explanation:
because it's good
I need a good debate topic it can be about anything
Answer:
Whats better cats or dogs
Explanation:
A lot of people have different opinions on each animal.
Que son los sentimientos?
1-Representaciones voluntarias de emociones.
2-Emociones
3-Reacciones involuntarias
Answer:
2
Explanation:
Emociones are feelings like sad mad happy
Describe this bar chart.
Answer now for 50 points.
- This bar chart clearly shows the percentage of tourists who stay at the respective places at Casuarina Beach.
- The bar chart is accurate and precise as the total percentage adds up to 100.
- The bar chart, however, would be better if it is a horizontal one. That way, values on the x-axis will be more easily understood.
help with Arabic
Only the green long part pls
Answer:
1.
ta ii ba faqasira fahazina
2.
Ea tish fashariba fashakara
3.
lahiqa warakiba fanazala
4.
eajiba wazahika fasaiida
5.
qar aaa fa fah im a fa fal aha
6.
aa mila fa gh an ima fa rab iha
7.
samiaa fawaiiya fafa aa la
8.
zahida fataraka faraziya
（人）3（面）3不（不)3
có nghĩa là gì ạ. Mình cảm ơn <3
(Person) 3 (face) 3 no (not) 3
đây là ý nghĩa của nó
Answer: có phải bạn đang giải pass truyện k??
Explanation:
Someone who nows Arabic pls help me now I’m really confused
Answer:
First line
zaraea wahasada fa akala
second line
hakama faeaadala fafalaha
third line
balagha fa akhala farashada
fouth line
dakhala fajalasa fawakhafa
Eyewitness reports, diaries, letters, and interviews are examples of _____ sources.
1 tertiary
2 secondary
3 primary
how many terms are there in the sequence of 3,6,9,....... 300
Answer:
[tex]n = 100[/tex]
Explanation is attached to the picture
Hope this helps you.
Let me know if you have any other questions :-):-)
ano ang konotatibong kahulugan ng iniirog?
[tex]\huge \orange \ \: \boxed {oh \: my \: god}[/tex]
[tex]\boxed \ \orange{oh \: my \: god}[/tex]
Underline the line that best illustrates how the death of Curly impacted Buck. Explain.
Ano ang pambansa na antas ng wika para kay Presidente?
Answer:
[tex]\huge\sf\red{ANSWER}[/tex]
pambansa
Explanation:
alam ko yn kse Filipino ako:)
#CarryOnLearning
(◕ᴗ◕✿)
18. 'क्रान्ति' शब्दको अर्थ कुन हो ? 1. झगडा 2. आन्दोलन 3. हड्ताल 4. सङ्घर्ष
Answer:
'क्रान्ति' शब्दको अर्थ आन्दोलन हो
the world largest and smallest sea. if u tell with explanation I will mark u brainlist
Largest = Pacific
Smallest = Central Arctic
Someone who nows Arabic pls help me now pls help me now
Answer:
First line
zaraea wahasada fa akala
second line
hakama faeaadala fafalaha
third line
balagha fa akhala farashada
fouth line
dakhala fajalasa fawakhafa
If kids at school are entitled to at least one recess a day, does that mean they get to have a recess?
Answer:
yes.
Explanation:
they are entitled to one recess so they will definitely get it
Menerangkan warisan seni bina rom di Malaysia.
Answer:
datang dari itali. bertapak dri negeri di malaysia melalui perdagangan. dan kini warisan rom kita boleh lihat seni binanya berada bnyak di malaysia
sức mạnh của tinh thần lạc quan
Answer:
Tranlated to English this means ‘The Power of Optimism’
hope dis helps ^-^
Please help, I cant find this in my textbook;
How do you say the following phrases in japanese:
1) He is not an employee
2) Is she a student? … No, she is a teacher.
3) That person is not a company employee. He is a teacher.
thank you!
Answer:
Hi, I apologize if I am a word off I'm a bit rusty :) Also I love your pfp :D
Explanation:
1.) 彼は従業員ではありません
2.)彼女は学生か？いいえ、彼女は教師です
3.) その人は会社の従業員ではありません。彼は先生だ。
explain three possible feelings or thought that a person who has been subjected to violent crime may have
Answer:
1. Hatred
2. The need for revenge
3. Sadness
Answer:
anger, regret, defeat. hope this helps
Explanation:
pew pew
what things or areas are used to express a language wisually such as asl. there are 3
Answer:
ASL is expressed by movements of the hands and face.
I believe