Cehmical formula of a salt compound is XC12. What is the X elements if the X ion in this compound has 28 electrons? O A) Zn O B) Cu O C) Co O D) Fe O E) Ni

Q: Which of these elements is most likely to form ions with a2+charge?(a) Li (b) Ca (c) O (d) P (e) Cl

A: The charge shown by the elements is its ability to gain or lose an electron to stabilize itself.…

Q: Which compound has the greatest ionic character? CsF O RbF LIF NaF

A: Ionic character determines the type of bond that can exist between two bonded atoms from the…

Q: What is the correct formula for a compound formed from the most common ions of aluminum and sulfur?…

A: Formation of ionic compounds between Al and S  Answer is d  Al2S3

Q: I Mono-atomic ions (A) Write the names and formulas of 2 anions with -1 charge (B) Write formulas of…

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Q: How many chloride ions (Cl1-) are needed to balance the positive charge of a Sodium ion (Na 1+)? a.…

A: For the balancing of ions, the number of positively charged ions must combine with same number of…

Q: Which of the followings about Fe(NO3)3 is wrong? O A) total charge in the compound is +2 O B) iron…

A: Ionic compounds are formed by the transfer of electrons from one atom to another. Fe (NO3)3 is…

Q: 3. What kind of ions are likely to form from following elements and how. a. Calcium b. Bromine c.…

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Q: 3. The ions given below contain ions with co-electrons. Identify these pairs. Fe2 +, Sc3 +, Ca2 +,…

A: The cation is formed by the loss of electrons. The number of electrons lost by the cation is equal…

Q: Which compound has the greatest ionic character? O RbF O LiF O NaF O CSF

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Q: an element has a density of 10.25 g/cm3 and ametallic radius of 136.3 pm. the metal crytsallizes in…

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Q: ey tend to gain electrons when forming ions. ey tend to be poor conductors. ey tend to lose…

A: Metal and non metals can be differentiated on the basis of physical and chemical properties.

Q: IV. Write the chemical formula of the following combination of lons. CI-1 PO43 Na+1 Ca +2 Zn +2 Al…

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Q: 1. Find the formulas for the corresponding oxides following dehydration (removal of water) from each…

A: The formulas for the respective oxides for given compounds are obtained by using following steps,1)…

Q: For each element below provide the formula for the metal oxide and for its hydroxide. a) Na  b) Ca

A: Oxide is the compound formed when oxygen reacts with another element. When basic oxide reacts with…

Q: Greetings and Thank you  for your help....I Appreciate  you 2. Give the formula of a negative ion…

A: Ions are formed when removing from electrons from or receiving electrons to the atom. Donation of…

Q: Write the formula of the compound of each of the following pairs of ions: a. Fe* and CN b. K* and…

A: The following pairs have a formula:

Q: Many paint pigments contain transition metal compounds. Name the compounds in these pigments using a…

A: Ochre is a paint color.

Q: Which of the following compounds is most likely ionic? LICI CO O CO CUNO3

A: Solution :      Ionic compounds are mainly made up of metal and non-metal where metal donates…

Q: Which element is best able to form an ionic compound with sulfur? K Au Te Br

A: Ionic compounds are the compounds in which the atoms are connected through ionic bond.An ionic bond…

Q: Write the chemical formula of ruthenium(III) chloride. X' x, Не

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Q: :The chemical name for Fe203 is iron oxide iron (II) oxide iron (III) oxide iron (VI) oxide

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Q: a Write the chemical fomiula by combining cach pair of sons, and write the name of each compound…

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Q: 3. Consider an imaginary element, a transition metal called jessium, J. a. Name the compound: JCI4…

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Q: What is the charge of X in the following compound: XS2 O +2 O +4 -4 2.

A: The number of electrons gained or lost by an atom results in the formation of an ion. When an…

Q: Which of the following is a binary compound?   A. hydrogen sulfate   B. hydrogen sulfide   C.…

A: Binary compounds are those compounds which contain two type of elements only.

Q: 1. The formula for silver oxide is Ag2O. True False     2. The Cl–, S2–, and Na+ ions have the same…

A: Answers to all the questions is given below.

Q: Without doing any detailed calculations (but using aperiodic table to give atomic weights), rank the…

A: Avogadro’s number- The number 6.023*1023is called as Avogadro’s number in the honour of scientist…

Q: Al2(CO3)3 contains ___ Al3+ ion(s), ___ C atom(s) and ___ O atom(s).

A: A molecule A x B y contains x atoms of element A and y atoms of element B.

Q: What is the formula for the compound formed from Cr and SO42 ions? Please write out the formula in a…

A: The correct answer is given below.

Q: Lrrr ruler of Omicron Persei 8e hates chemistry The periodic table on Omicron Persei 8 looks…

A: When sodium has +2 charge and sulfide has a -3 charge. What is the formula for potassium oxide.

Q: What is the formula for the compound formed from Mg2+ and Br ions? Please write out the formula in a…

A: An ionic compound is formed by cation and anion.

Q: 2.44 Which pair of ions will attract each other most strongly? Explain. Na 02- Mg2+ 02- Al3+ 02- B

A: Ionic compounds are held together by electrostatic forces between positive and negative ions.

Q: Which of the following is false regarding the Fe(NO3)3 compound? a) Valence of iron =+3 O B) It is…

A: The question is based on the concept of chemical bonding. We have to identify the correct statement…

Q: MN * 00 %24 The relative ionic radii of four ions, A, B, X, and Y, are shown. The ions shown in teal…

A: The ionic compound with 1 : 1 cation and anion are formed when the ions have same magnitude of…

Q: (2) Br Br (3)

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Q: From the choices below, select the pair that is isoelectronic. O se2- and Ar O K and Ca O Se and Br…

A: 16. Isoelectronic species are those that are having same number of electrons.  Total number of…

Q: Which of the following sets of cations is in order of increasing ionic radi. A Ba?* < Li" < K* <Cs*…

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Q: An unknown metal, M, in the third period forms an ionic compound with the formula MF. (a) What is…

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Q: ionic compound cation anion NaCl Na CI v:(co.), VO V,s, CoSO, ロ ロ|ロ ロ ロ ロ|ロ

A: Ions are charged species which can be both positively or negatively charged. These are of two types.…

Q: MCQ 47: Apple green flames are produced by the compounds of A. Strontium B. calcium C. barium D.…

A: The metal compound when introduced in flame they impart  characteristic colour to flame. To perform…

Q: Give the systematic name for the compound Mg(NO3)2-

A: Step : 1             The correct answer for the following is follows as :

Q: What is the charge of Pb in the ionic compound PBF4? +4 -4 +1

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Q: Which of the following does not have eight valence electrons?     Cl-     Xe     Ti+4…

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Q: For each of the following pairs, indicate which is smaller.

A: As Effective nuclear charge increases, atomic size decreases

Q: A 2.000 g sample of element M reacts with oxygen to form 2.539 g of the metallic oxide, MO2. What is…

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Q: 4. : What is the correct formula for the compound formed between potassium and phosphorus based on…

A: Since, you have asked multiple question, we will solve the first question for you. If you want any…

Q: Which of the following pairings is incorrect? a) A2S3: Aluminum sulfide O B) Zn(OH)2 : Zine…

A: The answer to the following question is -

Q: Aluminum (Al) reacts with chlorine (Cl,) gas to form aluminum chloride. Given the position of…

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Q: calculate he equivalent weight of k2so4, if you know the atomic weight of k=39, s=32, o=16

A: Given,  Potassium Sulphate, K2SO4  Atomic Mass of: K = 39 S = 32 O = 16 Molar Mass = 39x2 + 32+…