An atom has an average atomic mass of about 24.3 amu. What is the chemical symbol for the atom? Use the periodic table. Са O Mg Cr O Mn

Q: 1. What is the difference between carbon-13 and carbon-14? a. The number of electrons b. The number…

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Q: In 1961, scientists agreed that the atomic mass unit (amu) would be defined as 1/ 12 the mass of an…

A: Since you have posted a question with multiple subparts, we will solve the first three subparts for…

Q: What are the main ideas in Dalton’s atomic theory? How do they help explain the laws of conservation…

A: Dalton’s atomic theory ideas are as follows All matter is made up of tiny constituents called…

Q: Consider two compounds. Compound A contains 15.7 g of sulfur and 18.6 of fluorine. Compound B…

A: Mass of fluorine in compound A = 18.6 g Mass of sulfur in compound A = 15.7 g Mass ratio of fluorine…

Q: The atomic masses of 6 Li and 7 Li are 6.0151 amu and 7.0160 amu, respectively. Calculate the…

A: The isotopes of Lithium are Li6  and  Li7 whose atomic masses are 6.0151 amu and 7.0160 amu…

Q: Calculate the mass in grams of each elemental sample.(a) 1.32 * 1020 uranium atoms(b) 2.55 * 1022…

A: Mole is defined as the ratio of given mass and molar mass. The unit of mole is mol. It is utilized…

Q: What is the radius (in cm) of a pure copper sphere that contains 1.14 * 1024 copper atoms? [The…

A: Given information:

Q: In honor of the late Alex Trebek, your Chemistry class holds a Jeopardy tournament. The Final…

A: Since you have posted more than one question, we are doing first for you. To do the rest repost the…

Q: A new element, greenriverium (Gr), has three naturally-occurring isotopes. Isotope 1 has a mass of…

A: The atomic mass is the average mass of all the isotopes. So that we calculate the average mass with…

Q: Figure 3. Diatomic molecules of the element chlorine, Cl2. This Figure 4. Molecules of the compound…

A: ⇒All atoms are made up of tiny particles ie,protons,neutrons and electrons⇒A n element is a pure…

Q: What is the amount, in moles, of each elemental sample?a. 11.8 g Arb. 3.55 g Znc. 26.1 g Tad. 0.211…

A: The amount in moles has to be calculated.

Q: A certain element XX has four isotopes. 0.5600% of XX has a mass of 83.91343 amuamu. 9.860% of XX…

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Q: Two samples of sodium chloride with different masses were decomposed into their constituent…

A: The law of constant composition or law of definite proportions or law of definite composition states…

Q: Calculate the mass of 5.70 X 10^22 tungsten atoms.

A: Given No of atoms of tungsten = 5.70 x 1022   Also, Molar mass of tungsten =  183.84 g

Q: How many copper atoms are in a cube of copper metal measuring 1.33 cm on each edge? The density of…

A: Volume of copper cube = 1.33 cm x 1.33 cm x 1.33 cm                                            =…

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: A 1A 2A Atomic Number 8A E 1 A ЗА C 1 W J Zy 4A 5A 6A 7A 4 7 K V Ad 9. 10 11 12 13 14 15 Q U Ac Ab…

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Q: 7. Name the following compounds a. CI X Br Br b. C. d.

A: According to IUPAC nomenclature, select the longest chain of hydrocarbon which contains the maximum…

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: The element X has two naturally occurring isotopes. The masses (amu) and % abundances of the…

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Q: A 6.55 g sample of calcium sulfide was decomposed into its constituent elements, producing 3.64 g of…

A: According to the law of constant composition, for any particular chemical compound, all samples of…

Q: A 12.49 g sample of NaBr contains 22.34% Na by mass. Considering the law of constant composition…

A: Average atomic mass of the element = Mass of one isotope of the element x % natural abundance + Mass…

Q: Calculate the mass of one bromine atom. a. 6.022 x 1023 g O b.4 812 x 1025g O c. 1.327 × 10-22 g O…

A: Atomic mass is defined as the quantity of matter that is present in an atom of element.

Q: (a) Atoms are very small compared to objects on the macroscopic scale. The radius of a vanadium atom…

A: (a)Calculate the radius of vanadium atom in centimeters and meters:

Q: The average atomic mass of copper is 63.546 amu. Copper consists of two naturally occurring…

A: Question 2 Atomic mass of copper can be calculated using the following formula. Natural abundance…

Q: 1.Determine the number of protons, electrons, and neutrons present in (a) 32P (b) 98Mo (c) 44Ca…

A: Since you have posted multiple questions, we will solve first question for you. Please repost other…

Q: 4. Who discovered the neutron in 1932? A. Democritus C. Ernest Rutherford B. James Chadwick D.…

A: Mass number Mass number gives the number of protons and neutrons in an atom.

Q: May I ask, Why and how does the mass number change in different questions?  For example, in the…

A: Mass number and atomic mass of an atom are two different terms. Mass number is defined as the sum of…

Q: i do know what else to do, that is the question

A: The law of definite composition states that any chemical compound will always contain a fixed ratio…

Q: The element chlorine has two naturally occurring isotopes. The isotopic masses and abundances of…

A: Recall the following expression to calculate average atomic mass of chlorine average atomic…

Q: A 5.235.23 g sample of calcium sulfide was decomposed into its constituent elements, producing…

A: According to Law of Definite Proportions, compounds always occur in a certain fixed ratio. For…

Q: What is the edge length (in cm) of a titanium cube that contains 2.55 * 10(24) titanium atoms? The…

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Q: 1. The diameter of a neutral Helium atom is about 1 x 102 pm. Suppose we could line up Helium atoms…

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Q: 1. Name the following compounds. он b. HO,. OH a. с. F. NO2 d. HOʻ Br

A: Since, you have posted multiple question, we will solve the first question for you. For any other…

Q: A 25.0 g sample of sucrose is found to contain 51.4% by mass oxygen. A second sample of sucrose…

A: The above statement is consistent with law of Constant Composition.

Q: Balance each reaction and write its reaction quotient, Q꜀:

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Q: 2 N205 (s) 54 NO, (g) + 02 (g) AG;° (kJ/mol) N2O5 (s) 117.7 NO2 (g) 51.8

A: From the standard Gibbs free energy data □G° = [Total Gibbs free energy of products] - [Total Gibbs…

Q: In a chemistry class, a group of students determined the mass-to-charge ratio for an electron to be…

A: The charge on the particle and the mass of the particle is used to identify the subatomic particles…

Q: Gallium Arsenide has a density of 5.32g/cm3 and the chemical formula GaAs. A GaAs piece has a volume…

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Q: Palladium forms three different compounds with sulfur. The mass of sulfur per gram of palladium in…

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Q: Abundances 0.005% 0.720% 99.275% O a. 238.028 O b. 234 O c. 237 O d. 237.80 Relative masses…

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Q: Bromine (atomic mass 79.904 amu) consists of 2 different naturally occurring isotopes, Br-79 (atomic…

A: .Bromine consist of two isotopes 79Br and 81Br.     79Br⇒78.9193 amu.     81Br⇒80.9163 amu…

Q: A copper wire weighs 1.312 g is 2.15 mm in diameter and 40.5 mm long. The atomic mass of copper is…

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Q: A 4.09 g sample of calcium sulfide was decomposed into its constituent elements, producing 2.27 g of…

A: Given,  4.09 g  of 'CaS' sample  Which decomposes into  2.27 g of 'Ca' and 1.82 g of 'S'.  1.82 g…

Q: Two samples of sodium chloride with different masses were decomposed into their constituent…

A: Given: Mass of sodium in sample 1 = 2.91 g. And mass of chlorine in sample 1 = 4.48 g.

Q: 01. Suppose you have atoms A and B. Which of the following is not true? A. All matter is composed of…

A: 1)  A) True . all matter is composed of small particles called atoms . B) false . Nuclear…