In the following diagram, blue spheres represent the element A and yellow represent the element

Q: Tin, element 50 on the periodic table, has 10 stable isotopes. 117^Sn makes up 7.687% of naturally…

A: Using the formula moles of Sn117 is calculated as,

Q: The element silver has both physical and chemical properties, some of which do not change when the…

A: When the size of sample changes , all the properties changes except the density of sample. Density…

Q: Using white and black circles to represent different kinds of atoms, make a drawing that accurately…

A: Given samples of matter,         A solid element, a liquid compound, and a heterogeneous mixture.

Q: 106. Carbon-12 contains 6 protons and 6 neutrons. The radius of the nucleus is approximately 2.7 fm,…

A:

Q: 1.2x10^23 gold atoms calculate into mass, in grams

A: Given:Number of gold atoms = 1.2 x 1023 atoms.Molar mass of gold (Au) = 199.97 g/mol.

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: 19.78 mL of bromine contains 6.022 x 1023 bromine molecules. How many bromine atoms are in 3.00 L of…

A: Given -> Volume (V1) = 19.78 ml = 0.01978 L (1L = 1000 ml) Number of bromine molecules in V1=…

Q: Identify an element that would have similar properties as magnesium (Mg). Explain your choice and…

A: The element that has the similar properties like magnesium is -

Q: 5. In a 3.7-gram sample, there are (A) 1.1 x 1022 atoms of gold (B) 3.2 x 1025 atoms of gold (C) 4.4…

A: Number of Mole-Ratio of given mass of substance to the molar mass of substance is called number of…

Q: The mass of a single strontium atom is 1.46x10-22 grams. How many strontium atoms would there be in…

A:

Q: Determine the mass in grams of 7.56 × 10²¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A:

Q: A silver wire has a diameter of 0.500cm what length of the wire contains exactly 1.0×10²³ atoms of…

A: Given: Diameter of the wire = 0.500 cm  And the number of atoms of Ag wire = 1.0 X 1023 atoms.

Q: The amounts of gold (Au) in three Rings of Power are shown below. Indicate which of the rings…

A: The amounts of gold (Au) in three Rings of Power are shown below. Indicate which of the rings…

Q: How many grams does 1.44 x 1028 carbon atoms weigh?

A: To calculate the mass in grams for the atoms  First we have to convert the number of Atoms into…

Q: The total mass of the atoms in the letter I above is 1.963X10-21 g. Calculate the mass, in grams, of…

A:

Q: Determine the mass in grams of 2.25 x 1021 atoms of copper. (The mass of one mole of copper is 63.55…

A:

Q: Solid potassium and oxygen gas react to produce solid potassium peroxide, K2O2. Assume the reaction…

A: 1) Write the balanced chemical equation for the given chemical reaction. 2) From the balanced…

Q: 2.90 grams of phosphorus is burned in the presence of oxygen and forms 5.14 grams of a phosphorus…

A: We can just subtract the mass of the phosphorus from the mass of phosphorus oxide and get mass of…

Q: Suppose that mercury forms a perfect spherical droplet with a diameter of 5.0 mm. (a) What is the…

A: Density is given by the ratio of mass of the substance to its volume. 1 mole of a substance contains…

Q: Two samples of calcium fluoride are decomposed into their constituent elements. The first sample…

A: The first sample produced, mass of calcium =0.154 g Mass of fluorine = 0.146 g Second sample…

Q: Determine the mass in grams of 8.01x10^21 atoms of barium. (The mass of one mole of barium is…

A: Number of Barium atoms = 8.01 × 1021 atommass of 1 mole of Barium = 137.33 gNote:1 mol of Barium…

Q: A thermometer contains 2.5×1021 atoms of mercury. How many grams of mercury are in the thermometer?

A: To find the mass of mercury in the thermometer, you need to know the molar mass of mercury (Hg). The…

Q: Determine the mass in grams of 6.96 × 102¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A: Mole is defined as mass of substance divide by it's molar mass

Q: 3) The mass of a proton is 1.67 x 10-27 kg. What is the mass of a proton in Gigagrams? A) 1.67 x…

A: 1 Kg = 103 g 1 g = 10-9 Gg 1 Kg = 10-6 Gg

Q: The atomic masses of chlorine-35 (75.780%) and chlorine-37 (24.220%) are 34.969 amu and 36.966 amu,…

A: To calculate : average atomic mass of Cl

Q: Determine the mass in grams of 7.21 × 10²¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Rank the masses of the elements from lightest to heaviest. To rank items as equivalent, overlap…

A: Atomic masses of the elements: B : 11 u Cr: 52 u Li: 7 u

Q: Determine the mass in grams of 2.25 x 10 21 atoms of copper. (The mass of one mole of copper is…

A: Introduction: Copper element belongs to group 11 of the periodic table with atomic number 29 and…

Q: If 1.4% of the mass of the human body is calcium, how many kilograms of calcium are there in a…

A: Calcium= 1.4% of mass of human body  Weight of man = 185 pound

Q: A single atom of element Q has a mass of 1.09 x 10 -22 g. What is the name of the element Q?

A: Given : Mass of single atom of element = 1.09 X 10-22 g Assuming atomic mass of element is M.

Q: 5. When a 5.0 gram sample of Cu(NO,), • x H,0 is heated, 3.9 grams of the anhydrous salt remains.…

A:

Q: Determine the mass in grams of 7.98 × 10²¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A:

Q: Determine the mass in grams of 8.14 × 10²¹ atoms of copper. (The mass of one mole of copper is 63.55…

A: The objective of the question is to find the mass in grams of a given number of copper atoms. We…

Q: In an experiment, the reaction of 100.0 g of iodine produced 144.9 g of a compound formed from…

A: The mass of iodine is = 100.0 g The mass of the compound of iodine and fluorine is = 144.9 g The…

Q: A 2.540 g sample of an oxide of tin was heated in the air until the mass of the sample no longer…

A: Mass of tin (IV) oxide is 2.842 gmolar mass of tin (IV) oxide = 150.71 g/molatomic mass of tin =…

Q: If 21.4 g of aluminum is reacted with 91.3 g of Fe2O3, the prodücts will be Al2O3 and iron. What…

A: Limiting reagent: In a chemical reaction, the reagent that totally consumed is known as a limiting…

Q: In a reaction, 28.6 g of chromium(III) oxide reacts with 10.2 g of aluminum to produce chromium and…

A:

Q: The human body contains many elements from the periodic table. It is mostly composed of oxygen and…

A: Mass Of hydrogen = 7.07.0 kg Mass of phosphorus = 0.780.78

Q: What is the symbol for the element that is in group VIIA(17) and period 3?   What is the symbol…

A:

Q: Determine the mass in grams of 7.75 x 1021 atoms of carbon. (The mass of one mole of carbon is 12.01…

A: Given,the mass of one mole of carbon = 12.01 gNumber of carbon atoms = 7.75×1021 atomsHere, we are…

Q: cylinder contains 1.475 x 1024 argon atoms. How many moles of argon are there in the cylinder?

A:

Q: Determine the mass in grams of 6.03 × 10²¹ atoms of carbon. (The mass of one mole of carbon is 12.01…

A: The given mass of 1 mole of carbon atoms = 12.01 g So, the mass of 6.022×1023 atoms of carbon =…

Q: Determine the mass in grams of 7.94 × 10²¹ atoms of zinc. (The mass of one mole of zinc is 65.39 g.)

A: Given : Mass of 1 mole of Zinc = 65.39 g And number of atoms of Zinc = 7.94 X 1021 atoms.

Q: atoms of gold (Au) In a 3.7-gram sample, there are (A) 1.1 x 1022 atoms of gold (B) 3.2 x 1025 atoms…

A: Given, mass of Au = 3.7 g Molar mass of Au = 196.97 g/mol

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.