The following changes occur in a dry cell. For each change, decide if it is oxidation or reduction and give a reason for your choice. Zn to Zn2+
1. The following changes occur in a dry cell. For each change, decide if it is oxidation or reduction and give a reason for your choice. Zn to Zn2+
Jawaban:
Zn to Zn2+ is oxidation
Penjelasan:
oxidation = increase oxidation number
reductuon = decrease oxidation number
2. The following changes occur in a dry cell. For each change, decide if it is oxidation or reduction and give a reason for your choice. Zn to Zn2+
Jawaban:
Reaksi logam seng dalam larutan tembaga sulfat.
Proses yang terjadi dalam reaksi redoks ini ditunjukkan di bawah ini sebagai dua reaksi setengah yang terpisah, yang kemudian dapat digabungkan menjadi reaksi redoks penuh.

Jawaban:aku gk tau maaf yaa
Penjelasan: terimakasih semoga bermanfaat
3. Determine whether 753 is aprime or a composite number?
Soal :
Tentukan apakah 753 bilangan prima atau komposit!
Jawab:
Komposit (Composite Number)
Penjelasan dengan langkah-langkah:
753 = 3 × 251
Karena 753 bisa dibagi 3 dan 251, maka 753 bukan bilangan prima, atau dengan kata lain 753 merupakan bilangan komposit.
Semoga membantu ^_^
tolong jadikan jawaban terbaik :)
4. Does each of the following describe a physical change or a chemical change.
Jawaban:
1. "Melting an ice cube." This describes a physical change because the ice cube is changing from a solid to a liquid, but its chemical composition is not changing.
2. "Burning a piece of paper." This describes a chemical change because the paper is reacting with oxygen to produce heat, light, and ash, which are all different substances than the original paper.
3. "Cutting an apple into slices." This describes a physical change because the apple is being physically altered (cut into slices) but its chemical composition is not changing.
4. "Mixing vinegar and baking soda." This describes a chemical change because the vinegar (an acid) and baking soda (a base) are reacting to produce carbon dioxide gas and water, which are different substances than the original vinegar and baking soda.
5. "Freezing water to make ice." This describes a physical change because the water is changing from a liquid to a solid, but its chemical composition is not changing.
5. circle the adverb in each sentence below. write whether the adverb answer how, when, or where
1. How, adverbnya ‘carefully’
2. When, advnya ‘today’
3. When, adv ‘always’
4. where, ‘high’
5. How, ‘gracefully’
6. how, ‘often’
7. where, ‘inside’
8. how, ‘never’
9. where, ‘recently’
10. how, ‘happily’
semoga membantu, maaf kalau salah ^^
6. Tolong sekali ada tugas kimia disuruh translate artikel kimia dari inggris ke indonesia.tolong di bantu yang pandai bahasa inggris Oxidizing Agent in The Body Oxidation-reductions are used all the time. Burning, bleaching, batteries, metallurgy, and photography all rely on oxidation-reduction reactions. An important application of oxidation-reduction reactions is in electrochemical cells. (These types of cells should not be confused with biological cells. The word cell comes from cella, Latin for chamber or small room.) In an electrochemical cell, the oxidation reaction is physically separated from the reduction reaction, and the electrons pass between the two reactions through a conductor. Oxidation occurs at the anode and reduction occurs at the cathode. Oxidation-reduction reactions are responsible for food spoilage. The main source of oxidation is oxygen from the air. Preservatives that are added to foods are often reducing agents. Oxidation reactions are important in many reactions that keep our bodies going. But oxidation has also been blamed for aging, cancer, hardening of the arteries, and rheumatoid arthritis. Research is being done to evaluate the benefits of antioxidants in foods and dietary supplements. Antioxidants are natural reducing agents, such as fat soluble vitamin E and vitamin C (ascorbic acid). These substances might inhibit damaging byproducts of oxidation reactions that can occur in the human body after exposure to some toxic chemicals. One concern that scientists studying antioxidants have is that substances do not always act the same way in the human body that they do outside of it. For example, vitamin C is a reducing agent. If lemon juice is squirted on a cut apple, the vitamin C in the juice will prevent the browning of the apple that is caused by oxidation of the apple by the air. However, vitamin C might act as an oxidizing agent in the body.
Pengoksidasi agen di tubuhOksidasi-reduksi digunakan sepanjang waktu. Terbakar, pemutihan, baterai, metalurgi, dan fotografi semua bergantung pada reaksi oksidasi-reduksi. Sebuah aplikasi penting dari reaksi oksidasi-reduksi dalam sel elektrokimia. (Ini jenis sel tidak harus bingung dengan sel biologis. Sel berasal dari kata cella, bahasa Latin untuk ruang atau kamar kecil.) Dalam sel elektrokimia, reaksi oksidasi secara fisik terpisah dari reaksi reduksi, dan elektron melewati antara dua reaksi melalui konduktor. Oksidasi terjadi pada anoda dan reduksi terjadi di katoda.
Reaksi oksidasi-reduksi bertanggung jawab untuk pembusukan makanan. Sumber utama oksidasi oksigen dari udara. Pengawet yang ditambahkan ke makanan sering pereduksi.
Reaksi oksidasi yang penting dalam banyak reaksi yang menjaga tubuh kita akan. Tapi oksidasi juga telah disalahkan untuk penuaan, kanker, pengerasan arteri, dan rheumatoid arthritis. Penelitian yang dilakukan untuk mengevaluasi manfaat antioksidan dalam makanan dan suplemen makanan. Antioksidan adalah zat pereduksi alami, seperti larut dalam lemak vitamin E dan vitamin C (asam askorbat). Zat-zat ini mungkin menghambat produk sampingan yang merusak reaksi oksidasi yang dapat terjadi dalam tubuh manusia setelah terpapar beberapa bahan kimia beracun. Salah satu kekhawatiran bahwa para ilmuwan mempelajari antioksidan adalah bahwa zat tidak selalu bertindak dengan cara yang sama dalam tubuh manusia yang mereka lakukan di luar itu. Misalnya, vitamin C adalah agen mengurangi. Jika jus lemon yang disemprotkan pada luka apel, vitamin C dalam jus akan mencegah browning apel yang disebabkan oleh oksidasi apel oleh udara. Namun, vitamin C mungkin bertindak sebagai agen pengoksidasi dalam tubuh.
Maaf kalo salah, semoga membantu, jika puas jadikan jawaban terbaik ya:)
7. Can consumers actually determine whether Amazon or Walmart has lower overall prices? Explain
Consumers can determine whether Amazon or Walmart has lower overallprices by comparing a certain product from Amazon to Walmart.
As aconsumer, I go online to compare whether, for example, a phone case ischeaper on Amazon or at Walmart.
However; I realized that the product maybe cheaper by 2 or 3 dollars, however when you factor in the shipping andhandling costs as well as the time it takes for the product to arrive, Walmart’sproduct outweighs Amazon’s in price.
8. Underline the noun in each sentence and write 'C'*(For countable) or 'U'*(For uncountable) to show whether the noun is countable or uncountablePliss Bantu
Jawaban:
1. C
2. U
3. C
4. C
5. U
6. U
7. U
8. C
9. C
10. U
Jawaban:
Noun to underline:
1. Painting
2. Coffee
3. Glasses
4. Iron
5. Coal
6. Chicken
7. Cake
8. Chicken
9. Flour
10. Hope
Countable and uncountable:
1. C
2. U
3. C
4. C
5. U
6. U
7. U
8. C
9. C
10. C
Semoga Bermanfaat ya
Tolong komentar dibawah jika ada yang salah ya...
9. apa maksud if or whether
if = jika
or = atau
wether = cuacakalimat yang mengandung if or whether merupakan kalimat pengandaian
10. without calculating the price elasticity of demand, indicate whether demand for each movie is elastic. for which movie would a reduction in price produce the greatest increase in revenue? Pls kasih pertanyaannya dung
How much is the quality branded bag?
11. I invited her, but I don't care about ... (A)not she will come whether. (B)whether or not she will come. (C)whether she won't or not come. (D)whether or not. (E)whether or she will come
B. wheather or not she will come
bisa juga disusun seperti whether she will come or not
semoga membantu yaAnswer :
Opsi → B. Whether or not she will come.
Thanks for you.......
12. Therefore, with the presence of testimony, consumers can easily determine whether the quality of goods is decent or not.” The bold type word may be best replaced
Jawaban:
Bahasa inggris
Penjelasan:
Bahasa inggris
13. Exercise 1 Find whether the sentences active or passive. Change the sentences into active or passive to understand the lesson completely. 1. The dog should bring the bones _________________________________________
Jawaban:
The bones should be brought by the dog
Penjelasan:
The dog should bring the bones = active
Change the sentences into active or passive = The bones should be brought by the dog (passive)
14. Determine whether each of the following is a prime or a composite number.(a) 101(b) 357(c) 411(d) 1223(e) 1555(f) 3127Please answer this
Jawaban:
Pastikan apakah tiap-tiap pokok berikut adalah bilangan prima atau bilangan komposit. (a) 101 (b) 411 (d) 1223 (e) 1555 (f) 3127 tolong jawab ini
Penjelasan:bilangan komposif adalah suatu bilangan bulat positif jika itu mempunyai pembagi lain kecuali bilangan itu sendiri,bilangan komposit mempunyai lebih dari 2 pembagi himpunan sedang kan bilangan prima adalah bilangan bulat positif yang lebih dari 1
15. determine whether each of the following numbers is a factor of the number in the brackets 5 bracket 60 bracket
Tentukan apakah masing-masing angka berikut adalah faktor dari angka dalam braket 5 braket 60 braket
itu adalah artinya
faktor 5 = 5
faktor 60 = 2,2,3,5
so factors of 5 and 60 are
faktor 5 = 5
faktor 60 = 2,2,3,5
16. Task 8 Complete the sentences in reported speech! Note whether the sentence is a request, a statement, or a question and whether you have to change the tenses or not! Then spell it aloud!
she said that she is very tiredshe told gandi to becarefullshe says she will take a drink for her selfhe wondered why I didn't call himhe said he can't drive them to city parkshe asks fajar nugroho to prefer milk or juiceshe ask me where I spend my holiday a week agohe advised her not go Far awayhe wanted to know where are we been
17. Kuis [+50]: Determine whether each sentence is active or passive Isi dengan [active/passive] - I love you = _____ - You are loved = _____ - This program is brought to you = _______ - Covid-19 vaccine prevents infection = _____ - We are learning mathematics = ______
Penjelasan:
The passive voice is a relationship between the subject and the verb where the subject receives the action of the verb. In the active sentence, the focus of the sentence is the acting subject. Whereas in passive sentences, the focus is on a person or thing ordering.below are the answers to the active and passive words:
- I love you =Passive
- You are loved = Passive
- This program is brought to you=active
- Covid-19 vaccine prevents infection =active
- We are learning mathematics = active
maaf jika ad yg salah kk
kalau salah report aj kk gpp( ･ั﹏･ั)
Jawaban:
The passive voice is a relationship between the subject and the verb where the subject receives the action of the verb. In the active sentence, the focus of the sentence is the acting subject. Whereas in passive sentences, the focus is on a person or thing ordering.
below are the answers to the active and passive words:
- I love you =Passive
- You are loved = Passive
- This program is brought to you=active
- Covid-19 vaccine prevents infection =active
- We are learning mathematics = active
kak tapi add friend aku kak jiazheng
18. Determine whether each of the following numbers is an integer. -14 , 3.9 , 12 , 85, 0 , -2
-14 , 12 , 85 , 0 , -2
19. Which equation represents the standard enthalpy change of formation of water .....
Jawaban:
equation represents the standard enthalpy change of formation of water
is 2H2(g)+O2(g)→2H2O(l)
20. How to determine the force in each member of the truss.Then state if the members are in tension or compression
Jawaban:
Bagaimana menentukan kekuatan di setiap anggota rangka. Kemudian nyatakan apakah anggota dalam ketegangan atau kompresi
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