Which formula represents the empirical formula of a compound? A.H202 B.C6H12 c. C2H4 D.CH4O
1. Which formula represents the empirical formula of a compound? A.H202 B.C6H12 c. C2H4 D.CH4O
Jawaban:
b.c6h12
Penjelasan:
maaf kalo salah
2. Which of the following formulas, or rules, cannot be used to calculate the perimeter of a rectangle?
Jawab:
P = l + w
Penjelasan dengan langkah-langkah:
Maaf kalo salah
Semoga Membantu
Jawab:
P = 2 ( l + w)
3. A compound contains 4.04% hydrogen, 24.24% carbon, and 71.72% chlorine. Relative atomic masses: H = 1, C = 12, Cl = 35.5 Relative molecular mass of the compound = 99 Given this information, find the empirical formula and the molecular formula of the compound.
Menentukan Rumus Empiris berarti kita menentukan perbandingan paling kecil dari tiap jumlah molekulpertama kita tentukan rumus molekul dengan membagi jumlah kadar atom dengan massa relatifnya
H = 4.04 ÷ 1 = 4,04 dibulatkan ke bawah → 4
C = 24.24 ÷ 12 = 2.02 dibulatkan ke bawah → 2
Cl = 71.72 ÷ 35.5 = 2.02... dibulatkan ke bawah → 2
Didapatkan rumus molekularnya adalah C2H2Cl2Kemudian perkecil perbandingannya maka didapatkan CH2Cl4. Which of the following does not belong to the Four Basic Sentence?Select one:a. Simpleb. Imperativec. Compoundd. Complex
Jawaban:
Manakah dari berikut ini yang tidak termasuk dalam Empat Kalimat Dasar?
Pilih satu:
Sebuah. Sederhana
b. Imperatif
c. Senyawa
d. Kompleks
Yang terbaik dari semua hal yang dipertimbangkan:
Penjelasan:
a
maaf kalo salah semoga membantu kamu ya
5. An organic compound contained C 66.7%, H 11.1%, O 22.2% by mass. Its relative formula mass was 72. Find:a the empirical formula of the compoundb the molecular formula of the compound.(A,: H=1, C=12, 0 = 16)mohon dijawab dengan benar dan mohon bantuannya. Terima Kasih
Jawaban:
Ar C = 12
Ar H = 1
Ar O = 16
perbandingan mol
C : H : O
66,7/12 : 11,1/1 : 22,2/16
5,558 : 11,1 : 1,387 (dibagi 1,387)
4 : 8 : 1
the empirical formula => C4H8O
molecular formula => (C4H8O)n = 72
=> (4×12 + 8x1 + 1x16)n = 72
=> (48 + 8 + 16)n = 72
=> 72n = 72
n = 72/72
= 1
if n = 1 the empirical formula = the molecular formula
6. 4) Which of the following represents all the possible values of x that satisfy the equation below? X X x − 3 2x 2 *
Nilai x memenuhi persamaan yaitu x = 0 atau x = 4. Soal ini berkaitan dengan materi mencari nilai x dari suatu persamaan.
Penjelasan dengan langkah-langkahDiketahui :
Koreksi soal, mungkin maksud Anda persamaan x/(x-3) = 2x/2
Ditanyakan :
Solusi dari permasalahan tersebut
Jawab :
Langkah 1
x / (x - 3) = 2x / 2
Jika dipindah ruas akan menjadi :
x . 2 = 2x . (x – 3)
Selanjutnya kita lakukan operasi
2x = [tex]2x^{2}[/tex] – 6x
0 = [tex]2x^{2}[/tex] – 8x
0 = 2x (x – 4)
x = 0 atau x = 4
Jadi, x yang memenuhi adalah x = 0 atau x = 4
Pelajari Lebih LanjutMateri tentang mencari nilai x dari suatu persamaan brainly.co.id/tugas/26215307
#BelajarBersamaBrainly #SPJ1
7. 8.which of the following substance are element categories? a.gold b.air c.water d.sugar 9.which of the following substance are compound categories? a.oxygen b.hydrogen c.seawater d.sugar 13.if a molecule is made u from similar type of an atom,it is called a ... ? a.molecule of element b.molecule of an atom c.molecule of compund d.mixture 15.which of the following substance are mixture categories? a.oxygen b.pure water c.air d.sugar
jawabannya c.b.b.a maaf kalau salah
8. Which of the following statements best represents a difference between short-run and long-run cost?
manakah dari pernyataan-pernyataan berikut yang paling mewakili perbedaan antara jangka pendek dan jangka panjang?
mungkin yang kmu maksud translate annya ya?
9. which graph represents the solution of the inequality -12x > 36
Jawaban:
the working and the answer are shown in the pic.
semangat belajar;))
10. Calculate the empirical formulae of the following compound.Please give solution
Stoichiometry
Ar Fe = 56
Ar O = 16
Mass of Fe = 11.2 grams
Mass of O = 16.0 - 11.2 = 4.8 grams
Ratio beween mass and Ar
Fe : O = [11.2/56] : [4.8/16]
Fe : O = 0.2 : 0.3
Fe : O = 2 : 3
Empirical formulae is Fe₂O₃
11. please conduct a paragraph which has simple sentence, compound sentence, complex sentence and compound-complex sentence. Choose one of the following topics : 1. Early Marriage 2. Global Warming 3. Divorced. help me please. thanks
klo menurut aku sih 2. Global warming
12. 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)
13. which graph represents the solution of the inequality -12x > 36
Jawaban:
the working and the answer are shown in the pic.
semangat belajar;))
14. Compound ?is theCorrectadjective1. which of the followingA Heart beatsbeats FastB. A boy who is cleverC.A big greeneyesD. A blue book which is old
Jawaban:
C. a big green eyes
Penjelasan:
maaf klo salah
CMIIW
15. Give the name of the following compound!
Jawaban:
Answers. D. FePO4 following compound.16. which of the following is the correct adjective compound?A. a big green eyes B.Heart beats fastC.A blue book which is oldD.A boy who is clever
A.a big green eyes semoga membantu
17. which of the following is the correct adjective compound?A. a big green eyes B.Heart beats fastC.A blue book which is oldD.A boy who is clever
A. A big green eyes
maaf kalo salah kalo bener semoga bermanfaat
18. Which of the following represents the number two tenths in decimal form?a. 0.20000 c. 0.002000b. 0.40000d. 2.00000
Jawaban:
A: two tenths is equal to zero point two
19. Apply the aims of a diary, and choose which one of these notes best represents the characteristics of a diary.
Terjemahan
Inggris - Indonesia
Inggris :
Apply the aims of a diary, and choose which one of these notes best represents the characteristics of a diary.
Indonesia :
Terapkan tujuan buku harian, dan pilihlah buku harian mana.
20. Antara berikut, yang manakah sebatian ion? Which of the following is an ionic compound? A). NaCl B) NH C ) HCI D). CO2
Jawaban:
NaCl karena terdiri dari logam dan non logam
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