The distance between the centers of two oxygen atoms in an oxygen molecule is 1.21 x 10 cm . What is this distance in nm ?

Q: The population density of worms in a particular field is 34 worms per cubic meter of soil. How many…

A: The volume of soil is calculated as,

Q: The distance between two atoms in a molecule is 148 pm. What is this distance in centimeters?

A: we know, 1 picometer(pm) = 10-12 meter(m) distance ( in m) = 148 pm  × 10-12 m / 1 pm = 148  × 10-12…

Q: You are assigned the task of separating a desired granular material, with a density of 3.26 g/cm°,…

A: Given: The density of desired granular material = 3.26g/cm3 The density of undesired granular…

Q: The density of silver is 10.5 g/cm3. What would be the mass in grams of a piece of silver that…

A: Given that  Density of silver (Ag) = 10.5 gm/cm3 volume occupied by silver (Ag) = 23.6 cm3 We know…

Q: The average distance between the Earth and the Moon is 240,000 miles. Express this distance in…

A: The conversion of quantity from one unit to another unit is known as unit conversion. During the…

Q: The average radius of a molecule of lysozyme, an enzyme intears, is 1430 pm. What is its radius in…

A: Length can be measured in different units such as meter, kilometer, picometer, centimeter, nanometer…

Q: The density of lithium is 0.530 g/cm^3 what is the volume occupied by 1.20 x 10^3 g of lithium?

A: Density = mass / volume  density of lithium is 0.530 g/cm3 0.530 g in 1 cm3

Q: The length of a 262 mm line can also be expressed as: (choose one of the choices) Hint: you must…

A: Given 262 mm  Check each unit one by one in options.

Q: the distance between the oxygen atom and a hydrogen atom in a water molecule is 95.7 pm what is the…

A: conversion from one unit to another unit is an important aspect of measurement

Q: 1. What is the density of a solid if a sample occupying a volume of 16.53 mL wei 85.4 g? 2. Why does…

A: Given: The mass of the solid is 85.4 g. The volume occupied is 16.53 mL.

Q: Liquid nitrogen, which is often used as a coolant for low temperature experiments, has a boiling…

A:

Q: A student measured the length and mass measurements of a cube using the same equipment as in the…

A: Density=MassVolume

Q: If that same 225-g sample of water was frozen, what volume would it occupy, given that the density…

A: We have to determine the volume occupied by the 225 grams of the water sample that has been…

Q: the density of mercury, the only metal to exist as a liquid at room temperature, is 13.6 g/cm^3.…

A: The density of mercury is given as 13.6 g/cm3 and it is required to convert this in pounds per cubic…

Q: 1. The radius of a potassium atom is 0.227 nm. Express this radius in the unit centimeters.   2.…

A: In the given question, conversion of the given length measurement.

Q: The population density of worms in a particular field is 33 worms per cubic meter of soil. How many…

A: Given dimensions of field = 1 km × 1.5 km density of worms = 33 worm per cubic meter of soil

Q: A gallon (3.78 L) of latex paint can cover 385 ft 2 of the surface of a wall. What is the average…

A:

Q: ZSM-5, a catalyst material, has a surface area of 425 m³/g. What is the surface area of this…

A:

Q: ZSM-5, a catalyst material, has a surface area of 425 m/g. What is the surface area of this material…

A: Given: Surface area = 425 m2/g To find: Surface area in cm2/mg We know that, 1 m = 100 cm 1 g = 1000…

Q: If a particle is traveling at 98% of the speed of light in a vacuum (2.998 x 10³ m/s), what is its…

A:

Q: Carbon

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: The distance between the centers of the two oxygen atoms in an oxygen molecule is 1.21 × 10−8 cm.…

A: Units of measurement are needed for the desired calculations. It gives different ways to work out…

Q: The total amount of fresh water on earth is estimated to be 3.73 x 108 km3.  What is this volume in…

A:

Q: Heptane and water do not mix, and heptane has a lower density (0.684 g/mL) than water (1.00 g/mL). A…

A:

Q: The distance from the earth to the nearest stars is measured in light-years. Convert the distance…

A:

Q: THe density of aluminium is 2.7 g/cm3. what is the mass, in grams, of a piece of aluminium foil that…

A: Given, density of aluminium is 2.7 g/cm3

Q: The average radius of a molecule of lysozyme, an enzyme in tears, is 1430. pm. What is its radius in…

A: Length can be measured in different units such as meter, kilometer, picometer, centimeter, nanometer…

Q: One molecule of the spherically shaped, oxygen-carrying protein in red blood cells, hemoglobin, has…

A: Given: Diameter of the oxygen carrying cells = 5.5nm To Find: Diameter of the cell in meter Formula:…

Q: The radius of a barium atom is 2.22X10⁻¹⁰m. What is its ra-dius in angstroms (Å)?

A: Radius of an atom specifies its size. It measures the distance from the center of the nucleus to the…

Q: Given that there are 220.0 yards in 1.000 furlong, 2.54 cm in 1.00 inches, and two weeks in a…

A:

Q: After taking measurements of a rectangular solid with a mass of 3.84g, you determined the length to…

A:

Q: The single proton that forms the nucleus of the hydrogen atom has a radius of approximately 1.0 * 10…

A: Given, Radius of the nucleus = 1.0 x 10-13 cm = 1.0 x 10-15 m Radius of the hydrogen atom = 52.9 pm…

Q: in the opening scene of the movie Raiders of the Lost Ark, Indiana Jones tries to remove a gold idol…

A: Answer: Given data: dgold=19.32g/cm3dsand=3.65g/cm3 Dimensions of gold idol 5inch×5inch×5inch

Q: If a 3.25 L sample of pure glycerol has a mass of 4.10×10^3 g -what is the density of glycerol in…

A:

Q: 365 days = 1 year ; 24 hours = 1 day ; 60 sec = 1 min :60 min = 1 hr How many minutes are in 2.31…

A: The necessary conversion given in the above question are,    365 days = 1 year    24 hours = 1 day…

Q: Suppose you are trying to find the volume of a box based on the given measurements for the length,…

A: given l = 2.20 in   w =3.11 in  h = 10.4 in +1 in

Q: Molecular distances are given in nano-meters, where 1nm is equivalent to 1 x 10-9 meter. If the…

A:

Q: A sample of tap water contains 1.95 x 103 ppm CaCO3(aq). Assuming the density of tap water is…

A:

Q: A small crystal of sucrose (table sugar) had a mass of 6.170 mg. The dimensions of the box-like…

A: Given: mass of small crystal of sucrose = 6.170 mg dimensions of box (l×b×h), = 2.20 mm x 1.40 mm x…

Q: How many ounces of gold are in a 14 karat gold that weighs 2.9 ounces?

A:

Q: The distance between two carbon atoms in a piece of diamond is 0.154 mn. what is this distance in…

A: Given: Distance = 0.154 nm Conversion factors: 1 pm= 1 x 10-12 m 1 nm= 1 x 10-9 m

Q: How far does light travel in 4.0μs?

A:

Q: An atom of a particular element has a volume of 7.8 x 10¯31 m3 What is this volume in cubic…

A: The volume of the element is = 7.8×10-31 m3 This volume can be converted into a cubic nanometer by…

Q: In normal whole blood there are about 5.4 x 10^9 red cells per milliliter. The volume of a red cell…

A: Given:- In normal whole blood there are about 5.4 x 10^9 red cells per milliliter. The volume of a…

Q: Calculate the volume of a book with the following dimensions: length = 28.3 cm, width = 22.2 cm,…

A: Volume of the book can be calculated by using the formula given below as; Volume = Length × Width ×…

Q: The radius of a potassium atom is 231 pm. How many potassium atoms would have to be laid side by…

A:

Q: Ariel was wondering how much water there was in the sea.  If the total amount of water in the sea is…

A: Given, Volume of water = 3.73 × 108 km3

Q: Gold can be hammered into extremely thin sheets called gold leaf. A 200-mg piece of gold (density =…

A: Given that: Mass of the gold piece = 200 mg The density of gold = 19.32 g/cm3 Measurement of the…

Q: The distance between two adjacent peaks on a wave is called the wavelength.(a) The wavelength of a…

A: Given: Wavelength of UV light = 247 nm Wavelength of red light = 6760 pm W1 is the wavelength of the…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.