which one of the following is not the ingredient of the product? a. saltb. cheddar cheese c. lactic acidd. folic acid
1. which one of the following is not the ingredient of the product? a. saltb. cheddar cheese c. lactic acidd. folic acid
Jawaban :
D. Folic Acid
smoga terbantu :)
edit : (ternyata betul stelah dibaca lagi)
2. The function of lipase enzyme is to transform fat to… A. amylum C. tripsin B. fatty acid and glicerol D. amino acid
The function of lipase enzyme is to transform fat to B. fatty acid and glicerol
B. Fatty acid and glicerol
3. Forecasts are typically more accurate for the near future than they are for the longer future. this occurs because ......
Jawaban: the near term holds less uncertainty than the long term
4. The name “squirrel” is commonly used for those forms of the family Sciuridae that live in trees, although ____ equally accurate for ground-dwelling types. A. It B. It is C. they are D. the name
Jawabannya adalah B (it is)
5. Quiz #1 1. What is acid? 2. What are the names of acid? GL ✨
JAWABAN:
A molecule or other entity that can donate a proton or accept an electron pair in reactions or a chemical substance that neutralizes alkalisSulfuric acid, nitric acid, hydrochloric acid, citric acid, and acetic acidsemoga membantu.
- Have a nice day :)
6. the use of acid-base in daily?
Jawaban:
Acid : Accumulator
Digestion
Food preserving
Base : Soap
Detergent
Stomachache medicine
7. 1. The Henderson-Hasselbach formula is commonly used to approximate the pH value of a buffer solution. [H,AⓇ) pH = pK, - log [1,-148-1) Where the constant 8 is the charge of the acid H,A. (i) Derive the Henderson-Hasselbach equation. We have defined the pH value of an optimum acid buffer condition which is equal to the pK, of the acid. Some textbooks and teacher state that to obtain this optimum acid buffer, one can use one to one ratio between the acid and the salt that contain the conjugate anion of that acid. (ii) Justify whether the statement regarding the one to one ratio of acid and conjugate base is true for all case. (iii) Show that the actual ratio between the concentration of acid and the concentration of the conjugate ion in the optimum acid buffer condition is, [H, AⓇ] 2K, +1 [H.-148-1] [H.,-, A8-1] (iv) Hence, or otherwise, show that for a very dilute system Henderson-Hasselbach equation may not work well to approximate the pH value of the buffer solution.
Jawaban:
aku ff asup
akuanak ff kuat asayuku
8. Terlebih dahulu dengarkan video yang saya kirimyaitu "We are what we eat!1. What does the news announcer tells you about the sweet and fatty food?2. What does the video tell you about the junk food?3. What will happen to the brain without Omega-3 fatty acid?4. Why do we need to consume Omega-3 fatty acid from outside?5. What will happen to our brain if we consume ice cream too often and too much?
Jawaban:
Kita adalah apa yg kita makan
1. Apa yang di katakan penyiar berita tentang makan nan manis dan berlemak.
2. Apa yang di ceritakan dalam vidio tentang junk food.
3. Apa yang terjadi pada otak tanpa asam lemak omega-3.
4. Mengapa kita perlu mengonsumsi asam lemak omega-3 dari luar.
5. Apa yang akan terjadi pada otak jika terlalu sering mengkonsumsi es krim
Maaf bila ada salah penulisan dan maaf bila salah
9. 1. Write the complete equation (use molecularformula) for the reactions of potassium with:a. Hydrochloric acidb. Sulfuric acidc. Nitric acidD. Name the salts that are produced ineach equation.2. What is the gas produced in the reaction ofmetal with acid? How can it be tested??
English
Question:
1. Please write the complete equation (using molecular formula) for the reactions of potassium with:
a. Hydrochloric acid
b. Sulfuric acid
c. Nitric acid
2. Please name the salts produced as the result of each equation!
3. What is the name of the gas produced through the reaction of metal with acid? How could that particular gas be tested?
Answers:
1. Molecular formula is a formula giving the number of atoms of each of the elements present in one molecule of a specific compound.
a. Hydochloric acid: HCL
b. Sulfuric acid: H₂SO₄
c. Nitric acid: HNO3
2. The salts produced as the result of each equation
a. Hydrochloric acid produces chloric salts.
b. Sulfuric acid produces sulfate salts.
c. Nitric acid produces nitric salts
3. The name of the gas produced through the reaaction of metal with acid is hydrogen gas.
The hydrogen gas ignites in air. If hydrogen gas presents in a test tube, if a lighted splint held near the test tube, its mouth ignites with a squeaky pop.
Bahasa Indonesia
Pertanyaan:
1. Tolong tuliskan persamaan lengkapnya (menggunakan rumus molekul) untuk reaksi kalium dengan:
a. Asam hidroklorik
b. Asam sulfat
c. Asam sendawa
2. Tolong sebutkan garam yang dihasilkan sebagai hasil dari setiap reaksi kimia tersebut!
3. Apa nama gas yang dihasilkan melalui reaksi logam dengan asam? Bagaimana gas tersebut dapat diuji?
Jawaban:
1. Rumus molekul adalah rumus yang memberikan jumlah atom dari setiap unsur yang ada dalam satu molekul senyawa tertentu.
Sebuah. Asam klorida: HCL
b. Asam sulfat: H₂SO₄
c. Asam nitrat: HNO3
2. Nama-nama garam yang dihasilkan sebagai hasil dari reaksi-reaksi kimia tersebut:
a. Asam klorida menghasilkan garam klorat.
b. Asam sulfat menghasilkan garam sulfat.
c. Asam nitrat menghasilkan garam nitrat
3. Nama gas yang dihasilkan melalui reaksi logam dengan asam adalah gas hidrogen.
Gas hidrogen menyala di udara. Jika gas hidrogen hadir di dalam tabung reaksi, jika bidai menyala di dekat tabung reaksi, mulutnya menyala dengan bunyi melengking.
10. The function of irrigation in agriculture is ... A) to process the soil B) to fertilize the soil C) to improve the quality of seeds D) to water the rice fields We need to prevent acid rain because ... A) acid rain reduces green areas. B) acid rain decreases the amount of rainfall. B) acid rain causes floods. D) acid rain erodes the surfaces of buildings. The main cause of acid rain in big cities is ... A) the use of motor vehicles B) the use of nuclear weapons C) the burning of tropical forests D) the water pollution caused by pesticide
Jawaban:
1.c
2.a
3.d
Penjelasan:
,,,,,,,,,sama sama
11. 14. which of the following occurs during the electrolysis of dilute sulphuric acid?a) hydrogen and oxygen are formed in the ratio of two volumes of oxygen to onevolume of hydrogen.b) the dilute sulphuric acid becomes more concentrated.c) hydrogen is formed at the positive electrode.d) oxide ions are oxidised to oxygen.
Jawaban:
elektrolisis H2SO4
Katoda
2H+ + 2e -> H2(g)
Anoda
2H2O -> 4H+ + O2(g) + 4e
yang benar adalah D
12. Text 10Acid rain is rain that is highly acidic because of sulfur oxides, nitrogen oxides, and other ar pollutantsdissolved in it. Normal rain is slightly acidic, with a pH of 6. Acid rain may have a pH value as low as 28Acid rain can severely damage both plant and animal life. Certain lakes, for example, have lost all fish andplant life because of acid rain. Acid rain comes from sulfur in coal and oil.When they burn, they make sulfur dioxide (SO2). Most sulfur leaves factory chimneys as the gaseous sulfardioxide (SO2) and most nitrogen are also emitted as one of the nitrogen oxides (NO or NO2), both of which are gassesThe gasses may be dry deposited-absorbed directly by the land, by lakes or by the surface vegetation. If they are inthe atmosphere for anytime, the gasses will oxidize (gain an oxygen atom) and go into solution as acids. Sulphuricacid (H2SO4 ) and the nitrogen oxides will become nitric acid (HNO3). The acids usually dissolve in cloud dropletsand may travel great distances before being precipitated as acid rain.Catalysts such as hydrogen peroxide, ozone, and ammonium hclp promote the formation of acids cloudsMore ammonium (NH4) can be formed when some of the acids are partially neutralized by airbome ammonia (NH)Acidification increases with the number of active hydrogen (H) ions dissolved in acid. Hydrocarbons emitted by forexample, car exhausts will react in sunlight with nitrogen oxides to produce ozone.Although it is invaluable in the atmosphere, low-level ozone causes respiratory problems and also hastens theformation of acid rain. When acid rain falls on the ground it dissolves and liberates heavy metals and aluminum (ADWhen it is washed into lakes, aluminum imitates the outer surfaces of many fish. As acid rain falls or drarns to thelake the pH of the lake falls. Forests suffer the effect of acid rain through damage to leaves, through the loss ofnutrients, and through the increased amounts of toxic metals liberated by acid, which damage roots and scilmicroorganisms30. What is the text mainly about?a. The definition of acid raind Acid rainb. The process of acid rainc.the effect of acid raind. acid raine. rain31. what is the result of the burning of the coal and oil?a. ammoniumb.nitric acidc.sulphuric acidd.sulfur dioxidee.airborne ammonia32.the sulfur oxides and nitrogen oxides will... in the aira.it contains lower pH then the normal rainb.it has higher pH than the normal rainc.it can damage animal and plant lifed.it contains dangerous gassese.it endangers water life33.what is the purpose of the text?a.to report the acid rain in generalb.to explain the process of acid rainc.to persuade the reader to prevent acid rain d.to discuss the danger of acid rain in the aire.to present two different opinions on acid rain processhelp me please:))
Jawaban:
30.acid rain
31.d.sulfur dioxide
32
33.b
32 gajelas atau salah opsi mungkin
Penjelasan:
beruh69
13. The acid of normal rain is... then acid rain
Jawaban:
Normal rain contains the acid H2CO3. While acid rain contains SO2 and NOx acids.
Penjelasan:
Pertanyaan kurang dimengerti, ini hanyalah perkiraan jawaban.
14. what is the function of nitric acid?
Jawaban:
Digunakan sebagai bahan baku pembuatan pupuk nitrogen Digunakan sebagai bahan baku pembuatan polyamides, yaitu bahan baku pembuat karpet dan pakaian Digunakan sebagai bahan pelarut sebagian besar logam, dan unsur kimia non logam terjemahan nya:Used as raw material for making nitrogen fertilizers It is used as a raw material for the manufacture of polyamides, which are raw materials for making carpets and clothes Used as a solvent for most of the loPenjelasan:
semoga membantu15. The molar mass of a carboxylic acid solid is determined by titrating the acid mass to the end point of phenolphthalein using standardized NaOH. Which error will cause the resulting molar mass to be smaller than the molar mass it should be ?
Jawaban:
Massa molar dari padatan asam karboksilat ditentukan dengan menditrasi massa asam ke titik akhir fenolftalein menggunakan NaOH terstandarisasi. Kesalahan mana yang akan menyebabkan massa molar yang dihasilkan lebih kecil dari massa molar itu seharusnya？
Penjelasan:
Massa molar berkaitan erat dengan massa molar relatif (Mr) suatu senyawa dan berkaitan juga dengan berat atom standar unsur-unsur penyusun senyawa tersebut. Namun, massa molar haruslah dibedakan dengan massa molekul, yang merupakan massa satu molekul dan tidak secara langsung berhubungan dengan massa atom ataupun massa atom relatif. Satuan dalton (Da) kadang-kadang juga digunakan sebagai satuan massa molar, utamanya dalam bidang biokimia, dengan definisi 1 Da = 1 g/mol, walaupun sebenarnya secara kaku ia merupakan satuan massa molekul (1 Da = 1.660 538 782(83)×10–27 kg).[3][4]
Massa molar sering digunakan dalam perhitungan stoikiometri dalam ilmu kimia. Tujuan utamanya adalah sebagai faktor konversi antara jumlah gram sebuah zat murni, yang dapat diukur secara langsung, dan jumlah mol zat tersebut, yang sulit diukur secara langsung namun lebih penting secara kimia. Dengan ini, seseorang dapat membandingkan jumlah molekul suatu zat terhadap zat lainnya. Jika suatu reaksi kimia membutuhkan zat A dan B dalam jumlah molekul yang sama, tetapi massa molar A dua kali lipat massa molar B, maka dalam reaksi ini akan dibutuhkan 2 gram zat A setiap 1 gram zat B.
Satu mol didefinisikan sebagai bilangan Avogadro (sekitar 6.022×1023) partikel dari zat apapun (atom, ion, molekul atau satuan rumus). Dalam kimia massa molar dinyatakan dalam satuan gram per mol (g/mol). Pada tabel periodik terdapat massa molar atom setiap unsur. Angka itu sendiri dapat diterjemahkan menjadi dua macam: yaitu massa rata-rata suatu atom unsur tersebut dalam satuan satuan massa atom (sma atau u), dan juga massa satu mol zat tersebut dalam satuan gram. Pengartian yang kedua inilah yang disebut massa molar, dan lebih penting dalam perhitungan kimia. Dalam fisika, massa molar biasanya dinyatakan dalam satuan kilogram per kilomol. Massa molekul adalah istilah yang berbeda namun berhubungan. Massa molekul artinya adalah massa satu molekul.
16. 3 gram of acid crystal (Mr=60) is dissolved in water until the volume is 500 mL. If Ka of the acetic acid is 10-5 the degree of lonization of acetic acid is
M = 3/60 × 1000/500 = 0.1 MDegree of ionization = αα = √(Ka/M) = √(10^-5/0.1) = 10^-3 = 0.001
17. Acid rain can severely damage both plant and animal life. Certain lakes, for example,have lost all fish and plant life because of acid rain. Acid rain comes from sulfur in coal and oil.When they burn, they make sulfur dioxide (S02 ). Most sulfur leaves factory chimneys as thegaseous sulfur dioxide (SO2 ) and most nitrogen are also emitted as one of the nitrogen oxides(NO or NO2), both of which are gasses. The gasses may be dry deposited absorbed directly bythe land, by lakes or by the surface vegetation. If they are in the atmosphere at any time, thegasses will oxidize (gain an oxygen atom) and go into solution as acids. Sulphuric acid (H2 SO4) and the nitrogen oxides will become nitric acid (HNO3 ). The acids usually dissolve in clouddroplets and may travel great distances before being precipitated as acid rain. Catalysts such ashydrogen peroxide, ozone, and ammonium help promote the formation of acids in clouds. Moreammonium (NH4 ) can be formed when some of the acids are partially neutralized by airborneammonia (NH3). Acidification increases with the number of active hydrogen (H+) ionsdissolved in acid. Hydrocarbons emitted by, for example, car exhausts will react in sunlight withnitrogen oxides to produce ozone. Although it is invaluable in the atmosphere, low-level ozonecauses respiratory problems and also hastens the formation of acid rain. When acid rain falls onthe ground it dissolves and liberates heavy metals and aluminum (Al). When it is washed intolakes, aluminum irritates the outer surfaces of many fish. As acid rain falls or drains into the lakethe pH of the lake falls. Forests suffer the effect of acid rain through damage to leaves, throughthe loss of vital nutrients, and through the increased amounts of toxic metals liberated by acid,which damage roots and soil microorganisms.41. What is the text mainly about?A. The definition of acid rain.B. The process of acid rain.C. The effect of acid rain.D. Acid rain.E. Rain.
Jawaban:
B. The process of acid rain
Penjelasan:
itu kan ditanya sebagian besar isi teks nya apa, ada yg effect of acid rain jg, tp cuma sedikit di bagian akhir teks. sebagian besarnya menjelaskan prosesnya.
18. 1. what is the text about?2. why is fast food unhealthy?3. What are the effects of consuming fast food?4. why consuming much sugar is bad for health?5. whay are the consequences of the amino acid tryptophan deficiency?
Jawaban:
1. It is about the danger of fast food.
2. Because it can increase childhood obesity, heart disease and other chronic disease.
3. It can cause memory and learning problems.
4. Because it can increase the insulin level in our body and increase the risk of dementia.
5. It can increase feelings of depression.
19. complete the equation for the oxidation of butane to propanoic acid3C4H10 + ....O2 —> 4C2H3OOH + ... H2O
Itu bukan bahasa arab mapelnya namanya tu. Bahasa inggris tu
20. the acid of normal rain is....then the acid rain
Jawaban:
B. lower
Penjelasan:
jadikan jawaban tercerdas ya
Jawaban:
B. Lower
Penjelasan:
"The acid of normal rain is . . . than the acid rain." berarti "Tingkat keasaman hujan normal . . . dibanding dengan hujan asam."
Berdasarkan kalimat "Acid rain is rain that is highly acidic because of sulphur oxides, nitrogen oxides, and other air pollutants dissolved in it. Normal rain is slightly acidic." (Hujan asam adalah hujan yang sangat asam karena sulfur oksida, nitrogen oksida, dan polutan udara lainnya terlarut di dalamnya. Hujan normal sedikit asam), maka dapat disimpulkan bahwa hujan normal memiliki tingkat keasaman yang lebih rendah (lower) dibandingkan dengan hujan asam.
Jadi, jawaban yang benar adalah B.
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