7) The phosphate ion has a net charge of   A. zero   B. -2   C. +3   D. +2   E. -3

Q: On another planet, the isotopes of titanium have the given natural abundances. Abundance Mass (u)…

A:

Q: (a) H2 _?_ x1025 H atoms  (b) Ca(NO3)2 _?_ x1023 Ca2+ ions  _?_ x1024 NO3- ions  (c) N2O2 _?_ x 1024…

A: The mole is actually contains Avogadro’s number of particles in elements or compounds. Avogadro’s…

Q: 4. Copper is found in nature as two isotopes, 63Cu (69.0%) with a mass of 62.93 amu and 65Cu (31.0%)…

A: Average atomic mass of copper can be determined using the following equation.

Q: An element X occurs as three stable isotopes: X-21, X-22 and X-23. X-21 is 90.48% abundant and X-22…

A: Given : Element X exists as three stable isotopes. The three isotopes are: X-21 X-22 X-23

Q: Group II A (Group 2) metals form ions by a. gaining 2 electrons  b. gaining 6 electrons  c.…

A: Alkaline earth metals are placed in group 2 in modern periodic table.These metals has two electrons…

Q: The formulas and common names for several substances are given below. Give the systematic names for…

A: The systematic names of the compounds are actually the real chemical names. First, we need to name…

Q: Antimony has two naturally occuring isotopes, Sb121Sb121 and Sb123Sb123. Sb121Sb121 has an atomic…

A:

Q: 77. Determine the number of protons and electrons in each ion. (a) Na+ (b) Ва?+ (c) O²- (d) Co³+

A: An atom consists of the nucleus at its center, and electrons revolve around the nucleus. The nucleus…

Q: When oxygen forms an ion it ____electrons to form an ion with a ____charge. A. Loses; +2 B. Gains;…

A:

Q: Macmillan Learning, On another planet, the isotopes of titanium have the given natural abundances.…

A: Average atomic mass : The average atomic mass of an element is the sum of the atomic masses of it's…

Q: 4. What is the mass of 7.75 moles of magnesium metal?

A:

Q: CHEMISTRY 3A - WORKSHEET 5 --- CHAPTERS 3 and 12 1. Name the following compounds. MgF2 a. P2O5 SiO2…

A: According to guidelines i can answer only first question, please repost the other one.

Q: 4. Suppose you have a mixture that weighs 6.00 g. In the mixture you 2.50 g of iron and 3.50 g of…

A: The total weight of mixture is 6.00 g. The mass of iron and sulfur present in mixture is 2.50 g and…

Q: 6. The density of copper is 8.96g/cm³ at 25°C. Determine its density in kg/m³. 7. How mot enos al…

A: Given data :  6) density of Cu = 8.96 g/cm3  7) moles of Zn = 0.750mol  Conversions used :  1 g =…

Q: 1. Lithium occurs in nature as a mixture of two isotopes: Li, which has an atomic mass of 6.015 amu,…

A: Given;

Q: What is the mass of 1 mole of calcium atoms? (the values may be rounded differently than your…

A: 1 mole of calcium atom means 1 atom of calcium.

Q: 5.061 g of a hydrated metal sulfate is heated only 2.472 g of anhydrous metal sulfate remains. What…

A: By heating the water is removed from the molecule . From the weight loss we can calculate the…

Q: How many oxygens are in (NO3)2? A. 1 B. 2 C. 3 D. 6

A: NOTE: Looks like the metal is missing. But from the given formula, we can say that the metal is a…

Q: n element consists of 1.40% of an isotope with mass 203.9730 u, 24.10% of an isotope with mass…

A: Given that, Element consists of 1.40% of an isotope with mass 203.9730 u, 24.10% of an isotope with…

Q: Give the ions present and their relative numbers in iron(II) phosphate. Select one: 3- a. 1 Fe 2+…

A: Following are the relative no. Of  respective ions in the given complex.

Q: 3. A. B. C. A chlorine atom has 18 neutrons and an atomic mass of 35. How many protons are in the…

A: In an atom three fundamental particles are present. Positively charged particle proton and neutral…

Q: 8. How many silver atoms are in a single silver nanoprism with the shape of an equilateral triangle,…

A: edge length(a) of nano prism = 40 nm = 4010-7 cm (1 nm = 10-7 cm)= 410(1-7) cm = 410-6 cmthickness…

Q: 1. Calculate the formula mass of (NH4)3ASO4. A. 417.80 amu B. 193.05 amu C. 165.02 amu D. 156.96 amu…

A: 1. Formula mass of a compound is the sum of the masses of all the atoms present in the compound.

Q: 4 Br 3 mCPBA 5 1 NaOH to 2 Br

A: Multistep synthesis is given.We have to use suitable reagents to carry out the synthesis.

Q: . What is the mass, in grams, of each of the following? a. 2.3*10^-3 mol Sb b. 3.59*10^-2 mol Ba…

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

Q: Consider these compounds: A. Pb3(PO4)2 B. Ba3(PO4)2 C. CoS D. BaSO3 Complete the following…

A: Given compounds : A. Pb3(PO4)2 B. Ba3(PO4)2 C. CoS D. BaSO3

Q: Bulk platinum cost about $1158 dollars per ounce (28.35 g = 1 ounce) how much would it cost to…

A:

Q: An element consists of 0.19% of an isotope with mass 135.907 amu, 0.25% of an isotope with mass…

A:

Q: 7.77 g of titanium (II) carbonate contains ........  moles of carbon.

A: Applying concept of mole n= w/M

Q: A nail is coated with a 5.49E-2 cm thick layer of zinc. The surface area of the nail is 8.27 cm2.…

A:

Q: Antimony has two naturally occuring isotopes, Sb121 and Sb123. Sb121 has an atomic mass of 120.9038…

A: Given: Weight of isotope Sb121 = 120.9038 u Weight of Isotope Sb 123 = 122.9042 u. Average atomic…

Q: How many gold (Au) atoms are there in a 10. g sample of that is 50% Au by mass?  a. 6.2 x 1022 b.…

A:

Q: Copper has two naturally occurring isotopes with atomic masses of 62.9296 u (C u) and 64.9278 u…

A: When two atoms have same atomic number and different atomic mass, such atoms are called isotopes.…

Q: The average atomic mass of carbon is 12.011 amu. Assuming you were able to pick up only one carbon…

A: Given that, the average mass of carbon is 12.011 a.m.u. The given mass of any of the carbon isotopes…

Q: [Review Topics] [References] Use the References to access important values if needed for this…

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: 14. Copper has two isotopes, Cu-63 and Cu-65. The average atomic mass of copper is 64.928 g/mol.…

A: Average atomic mass = 64.928 g/mol  % abundance = ?

Q: What is the number of electrons in 0.50 mol of N₂O? 3.0×1023 22 11 6.6x1024 1.3x1025

A:

Q: Enter the precise mass numbers to the nearest 0.0001 mass unit. Compound A: C4H6O2 Compound B: C4H6S…

A:

Q: On another planet, the isotopes of titanium have the given natural abundances. Abundance Mass (u)…

A: 1.Average atomic mass is the weighted average mass of the sample that occure in nature.  2. Here the…

Q: 1.)chlorine Express your answer as an ion. 2.)cesium Express your answer as an ion 3.)gallium…

A: 1.)chlorine belong to halogen family , so ion form will be-    Cl-

Q: 1. Determine the number of atoms in 0.475 g of palladium (Pd). atoms 2. Determine the mass of 139…

A: One mole of any element contains approximately 6.022 x 1023 atoms of that element. Therefore, to…

Q: Did lead (Pb) on planet Earth: remain unchanged in abundance over time о а. O b. decrease in…

A: Lead (Pb) tends to be more abundant than Gold (Au) because it has an even number of protons in its…

Q: Nomenclature 71. Name the compounds in parts a-d and write the formulas for the compounds in parts…

A: Explanation Inorganic nomenclature To name a binary non-metal compound name each element in the…

Q: Calculate the mass, in kg, of each sample. I.) 1.68×1026 cadmium atoms. II.) 3.57×1027 nickel…

A: Here we need to calculate the mass of each sample as: I.) 1.68×1026 cadmium atoms. II.) 3.57×1027…

Q: On another planet, the isotopes of titanium have the given natural abundances. Isotope Abundance…

A: Given: The natural abundance and atomic masses of the three isotopes of titanium: We have to…

Q: The chemical analysis of a binary hydrate shows that it is composed of 27.76% Mn, 35.82% Cl and…

A: Given: Mass composition of Mn = 27.76 % Mass composition of Cl = 35.82 % Mass composition of H2O =…

Q: when 69.0 g of lead was heated im excess oxygen, 79.6 g of an oxide of lead was obtained. what is…

A:

Q: A metal sulfide M2S contains 14.3% of sulfur by mass. What is the identity of the metal in this…

A: mass percentage is one of the unit to express the concentration . mass percentage is calculated y…