Question 67 Metallic element found in hemoglobin O calcium O sodium O magnesium iron Question 68

Q: Question 1 of 5 What type of compound are they by seeing its chemical formula. HBr O lonic Acid Hide

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Q: QUESTION 10 The correct formula for the compound formed from Mg and S is MgS2. Mg2S3. Mg2S. MgS.…

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Q: he pencil's "lead" main element is: a. C b. Sn c. Ld d. Pb

A: Pencil's lead which appears grey or black in color is made up of graphite.  and graphite is one of…

Q: alculate the amount of antimony in the sample and its percentage in the ore. mass of antimony:…

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Q: Question 17 Calculate the average atomic mass of Amazium, a newly discovered element (Amazium,…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Name the alkaline earth metal with 81 neutrons and 56 electrons.

A: Barium atomic number = 56 Calcium atomic number = 20 Strontium atomic number = 38 Radium atomic…

Q: State the number of atoms for each of the following metals. (a) 63.55 g Cu (b) 40.08 g Ca

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. In one…

Q: mine the number of protons and electrons in each ion Al³+ A. 13 protons, 13 electrons B. 10…

A: The nucleus of atom is held by strong nuclear force which binds protons and neutrons. Number of…

Q: Table 3 Chemical Formula FeCl2 FeCl3 IUPAC copper (I) fluoride nickel (II) sulfide 23 ferric oxide…

A: Given ; formula, iupac and old system name

Q: Which elements would be found in the alkaline earth metals family? [Select all that apply] O cesium…

A: Alkaline earth metals are six chemical elements in group 2 of the periodic table .These element are…

Q: CHEMICAL FLAME COLOR OBSERVATIONS NAME & FORMULA Calcium, Ca Lithium Li Sodium, Na* Strontium, S…

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Q: QUESTION 29 The formula for aluminum phosphide is Al

A: Answer:- This question is answered by using the simple concept of formation ionic compound using the…

Q: QUESTION 2 Naturally occurring gallium is 60% 69Ga and 40% 1 Ga by mass. Based on this data the…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: QUESTION 18 Determine the name for N 20 5. nitrogen oxide dinitrogen pentoxide nitrogen tetroxide…

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Q: entals Lab Manual Classify the type of elements: Write names of any 4elements for each type…

A: The list of elements of metals non metals and metalloids

Q: Question 9 Which ion has +3 charge, 28 electrons, and an atomic mass of 70 amu? A 7231 Ga+3 B 7132…

A: Recall the given data of the following, charge=+3 no. of electron=28 atomic mass = 70 amu

Q: Question 24 Iron ore is a mineral primarily composed of: silicon and oxygen iron and carbon iron and…

A: 1.Ore are naturally  occurring minerals  from which metal can be extracted  profitably.

Q: Question 4 Write the name and formula of the compound made of magnesium and fluorine. Cont Sizer

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

Q: Question 18 Which one of the following has the element name and symbol correctly matched? a) P,…

A: Given,  The element name and symbol correctly matched in the given set of elements are:

Q: QUESTION 5 The name for Ca 3N 2 is

A: The name of the element Ca is  Calcium  The name of the element N is nitrogen.

Q: Question 24 Which statement below is not correct? 1. Calcium is an alkaline earth metal. 2. Silicon…

A: 1) Ca is an alkaline earth metal. The given statement is correct. Ca belongs to group 2 of the…

Q: Question 18 Which group is sodium (Na) in? O alkaline earth metals O noble gases O halogens O alkali…

A: Sodium (Na) is present in the group 1, which is known as Alkali metals.

Q: Question 36 Which of the following elements is formed when chromium is added to helium? O iron O…

A: The atomic number of Chromium = 24 The atomic mass of Chromium = 52 The atomic number of helium = 2…

Q: Question 8 of 27 Name the ions. Spelling counts. Lit: Mg+: CI":

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Q: What is the formula for sulfur tetrachloride? Select one: a. S,Cl. b. S.cI c. SCI d. SCl.

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Q: Milk of Magnesia is base True/False

A: Magnesium hydroxide is known as milk of magnesia and is usually used an antacid. The formula of milk…

Q: Question 1 How many sigfigs are associated with the number 1.113? 4 O 1 O 2 O 3

A: Significant figures are defined as no.of digits which tell about accuracy and precision.

Q: Answer the following short answer questions. 1) List three elements that would react similar to…

A: Since you have posted multiple questions, we are entitled to answer the first 3 only.

Q: QUESTION 29 Gallium (AAM = 69.723 amu) has two naturally occurring isotopes. Gallium-69 has an…

A: Answer

Q: QUESTION 3 The name for Fe(NO2)3 is

A: Name of the ionic compound is  1st come name of cation then name of anion.

Q: QUESTION 30 Calculate the mass/mass percent of 8.46 g SrCI, in 117.0 g of water. O 6.74% O 7.23% O…

A: 1- First calculate the total mass of the solution : Mass of the solution = [ Mass of the solute +…

Q: Name the compound: Na,0, Answer.

A: The name of ionic compounds are written by first writing the name of cation followed by name of…

Q: Question 48 The PHIVOLCS recently reported that Taal volcano emitted 15,500 tons of Sulfur Dioxide…

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Q: Question 4 What is the name of the compound shown below? L

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Q: Question 17 4) Listen An ion in the second column of the periodic table has 74 protons. How many…

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Q: metal, or metal. Representative element (main Transition metal Inner-transition metal group element)…

A: Representative element ( main group element) - Se, At, Ra

Q: (a) Gallium has two naturally-occurring isotopes 69Ga and 71Ga. The average atomic mass of gallium…

A: To find the average atomic mass (ArAr) of an element, given the percentage rarities of its isotopes…

Q: Question 15 Which one of the following species has as many electrons as it has neutrons? o 'H (Z=1)…

A: number of electrons in a given element = Z number of neutrons = atomic mass - atomic number(Z)

Q: QUESTION 3 Name the following compounds. Please type your answers into the box below. (a) P317 (b)…

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Q: QUESTION5 Which one of these compounds is an ionic compound? O a. N2 O b. CO2 O c. Na20 O d. CCI4

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Q: How to separate silver chloride from lead chloride

A: The question is based on the separation of compounds. we have been given two compounds.  we need to…

Q: Determine which statements are consistent with Dalton's atomic theory. Consistent Inconsistent…

A: The statements consistent of Dalton's atomic theory are as follows: Atoms of the same element have…

Q: QUESTION 31 What is the name of the compound whose formula is Cag(PO 4)2? A calcium (II) phosphate…

A: Given:  A compound formula Ca3PO42 To find :  The name of the compound

Q: QUESTION 21 a. NazN Match the compound names with their proper formulas: sodium nitride b. M93N2…

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Q: QUESTION 31 The chemical symbol for manganese is... ... Mo Mg Ga Mn

A: The atomic symbol of elements can be identified from periodic table,  Mo is molybdenum ( Atomic…

Q: mass percent

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Q: QUESTION 2 Write a chemical formula for each of the following substances: (Write the answer (h)…

A: KCoCrO4

Q: Question 4  Calcium      carbonate has the formula CaCO3. What is the charge on the      polyatomic…

A: The resonance hybride chemical structure for calcium carbonate is shown below.

Q: Question 2 How many ionic compounds are listed? NaCl, FeSO4, CuBr2, BaS 0 4 01 O 2

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