1. p + H + 87 2. He + ip 3. Mg + Si + 87

Q: 107. Prepare a table like Table 4.2 for the four different isotopes of Sr that have the natural…

A: The given atomic masses and % abundance are: mass of isotope (amu) % abundance 83.9134 0.56…

Q: What is the mass of 4.50 x 10- Cu atoms? Multiple Choice 7.47 x 10 amu 7.47 x 10 g 4.75 g 63.55 amu

A: Calculation of mass of cu atom:

Q: (1) How many protons, neutrons, and electrons are in C ? 16 (2) How many protons and electrons are…

A: An atom basically consists of proton, neutrons and electrons. The protons and neutrons are present…

Q: Consider 100.0 g samples of two different compounds consisting only of chromium and oxygen. One…

A:

Q: What monatomic ions do potassium (Z=19) and iodine (Z=53) form?

A: Ion formation- Valence electrons are the electrons are present in last shell of an atom,which can…

Q: Potassium has three stable isotopes, potassium-39, potassium-40, and potassium-41. calculate the…

A: Potassium exhibit three stable isotopes, Potassium- 39, potassium - 40 and potassium - 41. Here, we…

Q: how do you say these elements: Fe(ClO)2 ZnCl2 Ag2O Cu3N PbCl4 CrSO3

A: Hello !  Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the…

Q: The numbers of protons, neutrons, and electrons in 9 K* 19 O 20 p, 19 n, 19 e 0 19 р, 20 n, 19 е O…

A: Atomic no. = No. of proton = 19 Neutron = atomic mass - proton Neutron = 39 - 19 = 20

Q: 4. Complete the following table. Symbo # 206pb Mn²+ Net Protons Neutrons Electrons Charg le 31 52 38…

A: Here we are required to find the number of subatomic particle of different element

Q: 55 3. jA 25 Mn2+ ion has protons, neutrons, and electrons. а) 23; 30; 25 с) 30;B 25; 23 b) 25; 30;…

A: We will identify proton neutron and electron

Q: Assume silicon has three major isotopes in nature as shown in the table below.Fill in the missing…

A: Given the details of isotopes of Silicon: Isotope Mass (u) Abundance 28Si 27.98…

Q: CEN + ? MgBr (1). LIAIH MgBr b). MgBr c). ) d). LIAKO-t-Bu)3 e) DIBAH

A:

Q: Calculate the number of atoms in each sample.a. 14.955 g Cr                                    b.…

A: Since you have posted a question with multiple sub-parts we will solve the first three for you. To…

Q: Fill in the gaps in the following table: Symbol P3- Protons 35 49 Neutrons 45 66 118 Electrons 46 76…

A:

Q: Symbol 35 Cl Protons 26 50 Neutrons 30 66 Electrons 49 86 Mass no. 222 119

A:

Q: Differentiate between an atom, an element, and a molecule.

A: Element - are naturally occurring species  Atom-building block of molecule  Molecule - made up of…

Q: Argon has the following isotopic abundances: 35.967546 amu 0.3365% 37.962732 amu 0.0632% 39.962383…

A: Given,

Q: 14. Which of the following has 58 neutrons, 45 protons, and 45 electrons? Mo (A: 103; Z: 45) Tu (A:…

A: The number of electrons in an atom is always equal to its atomic number . According to quantum…

Q: Fill in the gaps in the following table:

A: Atomic number (Z) is defined as number of protons present in an atom.  In a neutral atom number of…

Q: Calculate the mass of 5.70×10225.70×1022 tungsten atoms.

A:

Q: 2.104 Name the following ions: (a) Ba2+ (c) V3+ (f) Ni2+ (i) Mn2+ (b) Cs* (d) HCO3 (e) NH4 (h) CIO2…

A: Here is the name of all the ions you asked for: Ba2+ --- > Barium ion     Cs+ --- > Cesium ion…

Q: Carbon can react with hydrogen to form several different compounds. Two compounds that contain only…

A: Law of multiple proportions relate the mass number of reactants.

Q: Which of the following compounds would contain 12 atoms of oxygen? Co(NO3)2 O Alz(HPO4)3 O NazCr207…

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Q: Mg + O2 -> MgO Mg = Mg = %D O = %3D

A:

Q: Mass number 63 29CU+2 15P-3 31 Cu: 34; P: 16 OA. Cu: 65; P: 28 В. Cu: 61; P: 34 OC. Cu: 31; P: 12 D.…

A: So we’ve to calculate the total number of electron present in the above mentioned ions.

Q: Fill in the gaps in the following table: Symbol Protons 34 50 Neutrons 45 69 118 Electrons 46 76 Net…

A: The given table has to be filled,

Q: The PHIVOLCS recently reported that Taal volcano emitted 15,500 tons of Sulfur Dioxide (SO2). How…

A:

Q: 4. Complete the following table. Symbol # Protons # Neutrons # Electrons Net Charge 206Pb 31 38 3+…

A: In the given question we have to fill the following table. here, we have to write the electron,…

Q: 1. РCl, 2. OF2 3. PCl,*

A: The question is based on the concept of chemical bonding.   by using VSEPR theory , we have to…

Q: 72.691g        84.321g FeSO4   +   Potassium phosphate  à  Iron (II) phosphate  +  K2SO4  Write…

A:

Q: O 234 Th е + -1 234 Ра 91 90 O 234 Ра 230 4 Ас + Ac 91 89 O 175 Pt 4 Не + 2 171 Os 76 78 O 14 14 В +…

A: Lat equation contains error as it does not follow mass conservation

Q: Phosphorus-32 is often used to image biological tissue. Mark any/all that apply to phosphorus-32. It…

A: Phosphorus -32 , means molar mass of phosphorus is 32 .and molar mass is written at the top of…

Q: Rb Sr 8 As 50 3

A:

Q: 13. Consider the table below. What is the relative abundance of isotope A? Isotope Abundance A 65 B…

A: Abundance of A (Abd A) = 65 Abundance of B (AbdB) = 115 Abundance of C (AbdC) = 20 Total Abundance…

Q: full the blank  Name Formula aluminum chloride Al   NaF   KS2 calcium nitride     LiF cesium…

A: Chemical formulas of compounds represent the relative number of atoms of various elements present in…

Q: 1. Atomic Structure. Fill the bla a) 106 46 Pd*2 protons 232 92 U b) protons 2. How many molecules…

A: Given Reaction - CuCl2 +  KI → CuI + KI + I2 This is redox is a type of chemical reaction in which…

Q: A compound is 24.7% calcium 1.2% hydrogen 14.7 carbon and 59.3% oxygen. Determine the chemical…

A:

Q: A sample of iron sulfide is found with the formula Feo.87S. What percentage of the iron ions are…

A: The given formula of the compound is Fe0.87S1.00. Iron(Fe) can be present in +2 or +3 oxidation…

Q: NaCI Not lonic v NO2 Cus CO PF3 MgF2 >

A:

Q: 5. Complete the table below: Symbol 206pb ?Cu²+ # Protons # Neutrons 31 52 39 76 34 # Electrons 54…

A: Mass number = mass of proton + mass of neutron Atomic number= number protons In a atom number of…

Q: CH Na + CF' (CO3)2 (OH) L (SO.)-2 (PO4)3 Na+ NaCI Naz Cos) Na oH Nalsou) Na(Par) (NH4)- K*- Ca+2…

A: Ionic compounds can be written as

Q: Na: 22.990 amu P: 30.974 amu O: 15.999 amu

A: 32.6 %   (Mass of Na in Na2PO4 is 32.6 %.)

Q: Read each of the following statements very carefully. Then decide if the statement is CORRECT or…

A: (a) This statement is correct.   Fires are often high-stress situations, and some people will…

Q: Determine Average Atomic Mass for oxygen: Isotope percentage Abundance Actual Mass O-16 99.762%…

A: Average atomic mass of an element is the sum of masses of its isotopes, each multiplied by its…

Q: Na Be nalt Nos Bea no NaNo3 Sodum BeNo3 Berylom Nihake B(POD [NO3] NäPo [PO4]3- Beryliun he Beat'…

A: Chemical formula comprises of cation and anion.

Q: 31. How many atoms of hydrogen are in ONE molecule of (NH4)2S04? А. 4 В. С. 6. D. 1 Е. 8

A: The given compound is ammonium sulphate. (NH4)2SO4

Q: Two compounds have the same composition: 85.62% C and 14.38% H.

A:

Q: 25. Silicon has 3 natural stable isotopes : 28Si (92.23%), 2°Si (4.67%), and 30Si(3.10%). Calculate…

A: Average atomic  mass is the  total mass of isotopes divided by total percentage availability  .  It…

Q: Mass

A:

Q: A hydrate of magnesium sulfate has a mass of 13.52 g. This sample is heated until no water remains.…

A: Given, The mass of a hydrate of magnesium sulfate = 13.52 g The mass of magnesium sulfate = 6.60 g…