Remidi Ikatan Kimia Kelas X
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Untuk memperoleh susunan elektron yang stabil dapat dilakukan dengan cara: Suatu unsur dengan nomor atom 16 dapat membentuk ikatan ion dengan unsur yang bernomor atom ..............
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10
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11
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17
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18
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16
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- 2.
Unsur X dengan konfigurasi elektron 2, 8, 8, 4 dapat membentuk ikatan kovalen dengan unsur yang konfigurasi elektronnya ....
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2 , 8 , 1
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2 , 8 , 2
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2 , 8 , 7
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2 , 8
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2
Correct Answer
A. 2 , 8 , 7 -
- 3.
Senyawa kovalen dapat terbentuk antara unsur-unsur dengan nomor atom ....
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11 dengan 3
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8 dengan 11
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8 dengan 16
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11 dengan 17
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12 dengan 8
Correct Answer
A. 8 dengan 16Explanation
The correct answer is 8 dengan 16. This is because covalent compounds are formed between nonmetals, and oxygen (O) and sulfur (S) are both nonmetals. Oxygen has an atomic number of 8, while sulfur has an atomic number of 16. Therefore, a covalent compound can be formed between these two elements.Rate this question:
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- 4.
Pasangan senyawa-senyawa berikut yang berikatan ion adalah ....
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Na2O dan MgCl2
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Na2O dan H2O
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H2O dan MgCl2
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NH3 dan MgCl2
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NH3 dan H2O
Correct Answer
A. Na2O dan MgCl2Explanation
Na2O dan MgCl2 berikatan ion karena Na2O adalah senyawa ionik yang terbentuk dari ion natrium (Na+) dan ion oksida (O2-), sedangkan MgCl2 juga merupakan senyawa ionik yang terbentuk dari ion magnesium (Mg2+) dan ion klorida (Cl-). Dalam ikatan ion, atom atau molekul saling memberikan atau menerima elektron sehingga terbentuk ion positif dan ion negatif yang saling tertarik membentuk ikatan ionik.Rate this question:
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- 5.
Diketahui konfigurasi beberapa unsur sebagai berikut: P : 2 Q : 2, 4 R : 2, 8, 2 S : 2, 8, 7 T : 2, 8, 8, 1 Ikatan kovalen dapat terbentuk antara ....
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P dan Q
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P dan R
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Q dan R
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Q dan S
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S dan T
Correct Answer
A. Q dan SExplanation
The elements Q and S can form a covalent bond because they have overlapping valence electrons that can be shared between the atoms to form a stable molecule. Both Q and S have the common element 2 and 8, which allows them to share electrons and fulfill the octet rule. Therefore, Q and S can form a covalent bond.Rate this question:
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- 6.
Pada molekul N2 jumlah elektron bebas PEB (pasangan elektron bebas ) adalah ....
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1
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2
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3
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4
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5
Correct Answer
A. 2Explanation
The correct answer is 2 because in the N2 molecule, each nitrogen atom contributes 5 valence electrons. These electrons form 3 sigma bonds and 1 pi bond, leaving 2 electrons as lone pairs or free electrons. Therefore, the number of free electron pairs in N2 is 2.Rate this question:
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- 7.
Sifat-sifat logam berikut yang benar adalah ....
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Semua logam keras
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Pada suhu kamar berwujud cair
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Mempunyai titik leleh tinggi
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Semua dapat ditarik medan magnet
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Semua logam pada suhu kamar berwujud padat
Correct Answer
A. Semua dapat ditarik medan magnetExplanation
The correct answer is "semua dapat ditarik medan magnet" because all metals can be attracted to a magnetic field. This is due to the presence of free electrons in the metal's atomic structure, which can easily be influenced by a magnetic field.Rate this question:
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- 8.
Ikatan kovalen terdapat dalam senyawa ....
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NaCl
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KCl
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HCl
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BaCl2
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MgCl2
Correct Answer
A. HClExplanation
The correct answer is HCl because it is a covalent compound. Covalent bonds occur when two non-metal atoms share electrons to achieve a stable electron configuration. In HCl, hydrogen shares its electron with chlorine, forming a single covalent bond. NaCl, KCl, BaCl2, and MgCl2 are all ionic compounds, where a metal atom donates electrons to a non-metal atom, resulting in the formation of positive and negative ions held together by electrostatic forces.Rate this question:
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- 9.
Ion M2- akan terbentuk jika atom M ....
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Menerima 2 proton
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Menerima 2 elektron
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Menerima 2 neutron
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Melepas 2 elektron
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Melepas 2 neutron
Correct Answer
A. Menerima 2 elektronExplanation
When an atom M accepts 2 electrons, it gains a negative charge and becomes an ion with a charge of -2. This is because electrons have a negative charge, so when an atom gains electrons, it becomes negatively charged.Rate this question:
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- 10.
Diketahui beberapa golongan: 1) IA 2) IIA 3) VIIA 4) VIIIA Unsur yang mencapai susunan elektron stabil dengan cara menerima elektron adalah golongan nomor ....
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1 dan 3
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2 dan 4
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1 dan 4
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3
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4
Correct Answer
A. 3Explanation
Golongan nomor 3 (VIIA) adalah yang mencapai susunan elektron stabil dengan cara menerima elektron. Golongan nomor 1 (IA) mencapai susunan elektron stabil dengan cara memberikan elektron, sedangkan golongan nomor 2 (IIA) dan 4 (VIIIA) mencapai susunan elektron stabil dengan cara tidak memberikan atau menerima elektron. Oleh karena itu, jawaban yang benar adalah 3.Rate this question:
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- 11.
Molekul yang memiliki ikatan kovalen rangkap tiga adalah ....
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CO2
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O2
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H2
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NH3
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N2
Correct Answer
A. N2Explanation
Molekul yang memiliki ikatan kovalen rangkap tiga adalah N2. Ikatan kovalen rangkap tiga terjadi ketika dua atom nitrogen saling berbagi tiga pasang elektron, membentuk ikatan yang sangat kuat. Molekul N2 memiliki dua atom nitrogen yang terikat bersama oleh ikatan kovalen rangkap tiga, sehingga menjadikannya sebagai molekul dengan ikatan kovalen rangkap tiga.Rate this question:
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- 12.
Ikatan yang terdapat pada CCl4 adalah ikatan ....
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Kovalen Koordinasi
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Ion
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Logam
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Ikatan Kovalen Polar
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Ikatan Kovalen non Polar
Correct Answer
A. Ikatan Kovalen non PolarExplanation
The correct answer is "Ikatan Kovalen non Polar." In CCl4, carbon forms covalent bonds with four chlorine atoms. Since carbon and chlorine have similar electronegativities, the electrons in the covalent bonds are shared equally, resulting in a nonpolar covalent bond.Rate this question:
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- 13.
Unsur Y dengan konfigurasi elektron 2, 8, 7 dapat membentuk ikatan kovalen dengan unsur lain yang konfigurasi elektronnya . . . .
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2 , 8 , 2
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2 , 8 , 1
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2 , 8 , 8, 1
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2 , 8 , 3
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2 , 8 , 7
Correct Answer
A. 2 , 8 , 7Explanation
The given answer, 2, 8, 7, is the same as the electron configuration of element Y. This means that element Y has 2 electrons in its first energy level, 8 electrons in its second energy level, and 7 electrons in its third energy level. Since element Y has 7 valence electrons, it can form covalent bonds with other elements that have fewer valence electrons, such as an element with the electron configuration 2, 8, 2. Therefore, the correct answer is 2, 8, 2.Rate this question:
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- 14.
Diketahui nomor atom unsur sebagai berikut: H : 1, C : 6, N : 7, O : 8, S : 16, Cl : 17. Senyawa di bawah ini yang mempunyai ikatan kovalen koordinat yaitu . . . .
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NH3
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H2O
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CCl4
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H2SO4
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HCl
Correct Answer
A. H2SO4Explanation
H2SO4 is the compound that has a coordinate covalent bond. This is because in H2SO4, the sulfur atom donates a pair of electrons to one of the oxygen atoms, forming a coordinate covalent bond. The other oxygen atoms in the compound are bonded to hydrogen atoms through regular covalent bonds.Rate this question:
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- 15.
Nomor atom dari unsur X dan Y masing-masing 16 dan 17. Rumus dan jenis ikatan yang terbentuk jika kedua unsur tersebut berikatan yaitu.................
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XY6 elektrovalen
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XY2 elektrovalen
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X2Y elektrovalen
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X2Y kovalen
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XY2 kovalen
Correct Answer
A. XY2 kovalenExplanation
The atomic numbers of elements X and Y are 16 and 17 respectively. Since element X has an atomic number of 16, it has 6 valence electrons. Element Y, with an atomic number of 17, has 7 valence electrons. In order for both elements to achieve a stable electron configuration, they can share two electrons through a covalent bond. Therefore, the formula and type of bond formed between X and Y is XY2 covalent.Rate this question:
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- 16.
Aturan duplet terdapat pada molekul . . . .
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Cl2
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H2
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O2
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N2
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Br2
Correct Answer
A. H2Explanation
Duplet rule states that atoms tend to gain, lose, or share electrons in order to achieve a stable electron configuration similar to the noble gases. In this case, H2 is the only molecule that has two hydrogen atoms, which can share electrons to achieve a stable configuration with two electrons in their outermost shell, similar to helium. Therefore, H2 is the molecule that follows the duplet rule.Rate this question:
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- 17.
Jika unsur 19X bereaksi dengan 17Y akan terbentuk . . . .
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Senyawa kovalen dengan rumus XY
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Senyawa kovalen dengan rumus XY2
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Senyawa ion dengan rumus XY
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Senyawa ion dengan rumus XY2
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Senyawa ion dengan rumus X2Y
Correct Answer
A. Senyawa ion dengan rumus XYExplanation
When element 19X reacts with element 17Y, it forms an ionic compound with the formula XY. Ionic compounds are formed between a metal and a non-metal, where the metal loses electrons to become a positive ion (cation) and the non-metal gains electrons to become a negative ion (anion). In this case, element 19X is likely a metal and element 17Y is likely a non-metal, resulting in the formation of an ionic compound with the formula XY.Rate this question:
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- 18.
Pasangan senyawa yang mempunyai ikatan kovalen adalah . . . .
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CH4 dan H2O
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NaCl dan KCl
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KCl dan CH4
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CH4 dan MgCl2
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KOH dan NaCl
Correct Answer
A. CH4 dan H2OExplanation
The correct answer is CH4 dan H2O. Both CH4 (methane) and H2O (water) are covalent compounds because they are formed by sharing of electrons between atoms. In covalent bonding, atoms share electrons to achieve a full outer electron shell, resulting in a stable molecule. NaCl and KCl are ionic compounds formed by the transfer of electrons, not sharing. CH4 and MgCl2 are also covalent compounds, but the given answer specifically mentions CH4 and H2O as the correct pair. KOH and NaCl are ionic compounds, not covalent.Rate this question:
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- 19.
Ikatan rangkap dapat terjadi pada senyawa kovalen ...............
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O2
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C2H6
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F2
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Cl2
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Br2
Correct Answer
A. O2Explanation
Oxygen (O2) is a covalent compound that can form a double bond (pi bond) between two oxygen atoms. This double bond is an example of a double bond, which is a type of covalent bond where two pairs of electrons are shared between two atoms. Therefore, O2 can exhibit a double bond and is an example of a compound that can form a double bond.Rate this question:
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- 20.
Senyawa kovalen non polar terdapat pada senyawa ...............
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HCl
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HBr
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CCl4
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HF
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NH3
Correct Answer
A. CCl4Explanation
Nonpolar covalent compounds are formed when two atoms share electrons equally. In the compound CCl4, carbon (C) forms covalent bonds with four chlorine (Cl) atoms. Since chlorine is more electronegative than carbon, the electrons in the covalent bonds are pulled closer to the chlorine atoms, creating a partial negative charge on the chlorine and a partial positive charge on the carbon. However, since all the chlorine atoms are identical and the molecule is symmetrical, the partial charges cancel each other out, resulting in a nonpolar molecule. Therefore, CCl4 is a nonpolar covalent compound.Rate this question:
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Mar 20, 2023Quiz Edited by
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Nov 07, 2015Quiz Created by
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