The U.S. quarter (25 cents) has a mass of 5.67 g and is about 1.55 mm thick. How many quarters are in a stack that is 1.75 ft high? Put your answer in

Q: The mass of a proton is 1.67*10^-27kg. What is the mass of a proton in gigagrams?

A: Kilogram is a small unit while gigagrams 1kg=10-6gigagram So 1.67×10-27kg have 1.67×10-27×10-6…

Q: Consider a 25.09 g cube of cadmium metal, an element which forms some of the most toxic salts known,…

A: The length of one side of cube = 1.45 cm

Q: A brownie contains 1.30 x 102 mg of sodium. What is this mass in units of grams?

A: 1 mg = 10-3 g

Q: What is the mass of 1 gal of carbon tetrachloride in grams? In pounds. I 4.55 L. 1 lb.- 0.454 kg)

A: Given : volume of CCl4 = 1 gal  To calculate :- mass of CCl4 (in grams and pounds)

Q: If you report two measurements of mass, 7.42 g and 7.56 g, are the measurements accurate? Are they…

A: If the average values of different measurements are close to correct value, the measurement is…

Q: An average fly has a mass of 0,048 grams, An average ant has a mass of 3,12 × 10-à grams. • Would…

A: Solution - According to the question - Given - First, we should solve 10^-3 = 0.001 "for the ants"…

Q: Given the density of Au is 19.3 g/cm3, determine the mass of gold (in grams) in an ingot with the…

A:

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

A: We know that, 1 nm= 10-9 m then,

Q: Explain in your own words, by writing a short paragraph, how the atomic theory explains…

A: Law of conservation of mass states that atoms are neither created nor destroyed during a chemical…

Q: A sample of calcium chloride, CaCl2, has a mass of 27.8 g. What mass of chlorine is present in the…

A:

Q: How many quarts of gasoline are there in 248 grams of gasoline if gasoline has a density of 0.749…

A:

Q: How many pounds of nickel are in 1.2 × 10° of the $1 coins? Give your final answer in the space…

A: we know that in US  1 dollar = 20 nickles

Q: how many nanomoles is a 83.9 pg sample of platinum?

A: Given :- mass of Pt = 83.9 pg  To calculate :- number of nanomoles of Pt  Number of moles =…

Q: Determine the mass (in kg) of a silver sphere with a diameter of 8.25 in.

A:

Q: What mass of solid lead would displace exactly 234.6 liters of water? Given that lead has a density…

A: Unit of volume and density is converted as follows:

Q: 20. As an instructor is preparing for an experiment, he requires 425 g phosphoric acid. The only…

A:

Q: In a catalog you can buy sulfuric acid with 99.999% purity at a cost of 2,263.00 pesos for a 100 mL…

A: The question given, volume of sulfuric acid (V)= 100 ml, Density of this acid (d) = 1.84 g/ml And…

Q: initial mass of erlenmeyer flask 123.221 g final mass of erlenmeyer flask 133.203 g mass of water…

A: Mass of water = 10 g Volume of water = 10 mL Density of water = ?

Q: Gold (Au) has a density of 10.463 g/cm3. What is the mass in kg of 8.74 m3 of Au? ***Be sure to show…

A: Given data is as follows: The density of gold (Au) = 10.463 g/cm3 The volume of Au = 8.74 m3  The…

Q: The radius of cesium atom, Cs, 1s 265 pm, and its mass is 2.21 x 10 22 g. What is the density of the…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: What is the mass, in grams, of a pure gold cube that has a volume of 5.00 cm3?

A: Answer: mass of pure gold cube is 96.5 g. Given:      Volume of pure gold cube=5.00 cm3      Density…

Q: Ultrapure silicon is used to make solid state devices such as computer chips.  What is the mass in…

A: 1111.3 g

Q: Gallium has a density of 5.9 g/mL. How much mass do 54.2 mL of Gallium have? 319.78 g 319.8 g 320 g…

A: •Given :-density of gallium=5.9 gm/ml                Volume=54.2 ml   • As we know density formula…

Q: If a large marshmallow has a volume of 2.00 in3 and density of 0.242 g/cm3, how much would it weigh…

A: Convert the unit of volume:

Q: Gold is a very dense metal with a density of 18.3 g/cm3, what is the volume of a 0.255 kg gold…

A: Given that -  Density of Gold = 18.3 g/cm3  Mass of Gold sample = 0.255 kg  This mass in grams is =…

Q: How much would a 34.0 g ingot of gold occupy, with a density of 19.3 g/cm?

A: Density is defined as the mass per unit volume. It is represented by rho (ρ) . It’s relation with…

Q: How many cm3 are there in 2.5 m3?

A: Given, 2.5 m3  Conversion factor : 106

Q: Given the density of Au is 19.3 g/cm3, determine the mass of gold in an ingot with the dimensions of…

A:

Q: A cube of an unknown metal measures 1.61 mm on one side. The mass of the cube is 36 mg. Which of the…

A:

Q: Determine the mass (in kg) of a gold block with the dimensions of 2.75 in x 5.69 in x 5.16 in.

A: Length  = 2.75 in =  2.75×2.54 cm= 6.985 cmBreadth  =5.69in=5.69  ×2.54 cm=14.4526 cmHeight  = 5.16…

Q: Iron has a density of 7.87 g/mL. How much mass would a 12.3

A: mass (m)  per unit volume (v)  is called density (d) i.e       d = MV   units : g/mL   (or)   Kg/L

Q: An object with a mass of 0.231 kg has a density of 2.02 g/cm3. What is the volume (cm3) of the…

A: Density is the amount of substance present per unit of volume. Density= mass/ volume

Q: What volume of water (ml) would a 51.4 g sample of pure gold displace? The density of gold is 19.3…

A:

Q: Complete the table below. I| mg 2 g dm 8 m 8 ks S 300 cL %3D II

A:

Q: The Gateway Arch in St. Louis, MO is approximately 630 ft tall. How many U.S. dimes would be in a…

A: Given the height of Gateway Arch = 630 ft Given the thickness of dime = 1.35 mm  We have to find how…

Q: 8.930 12.2mL Metal C 3 sig fig 3. Calculate the mass in grams of a 525 cm³ block of lead. 1. 525…

A: Given, Volume of lead block = 525cm3. Density of lead = 11.342g/cm3.

Q: If a cube of gold has a length of 2.50 cm, what is the mass of the gold sample? Convert 19.3 g cm-3…

A: Given that: Length of  gold cube = 2.50 cm Density of gold = 19.3 g/cm3 Volume of cube = (length)3 =…

Q: If you have a piece of lead (dPb = 11.34g cm^-3) with a volume of 23.4 cm^3, what is the mass (in…

A:

Q: The element bromine at room temperature is a liquid with a density of 3.12 g/mL. Calculate the mass…

A: The relation between density, mass and volume is given as,

Q: What is the volume of 12.0 grams of an alcohol whose density is 0.920 g/mL?

A: Since density is defined as the mass of compound per volume of the compound Hence density = mass /…

Q: 3. The mass of a gold nugget was measured and found to be 0.00320 grams. How many significant…

A: 3) Given : mass of gold nugget = 0.00320 g

Q: What is the volume of a piece of diamond (ρ = 3.5 g/cm3) that has a mass of 0.65 kg?

A: Given : density of diamond = ρ = 3.5 g/cm3  And mass of diamond = 0.65 Kg

Q: When a 39.71 g rock was placed in a graduated cylinder with 18.62 mL of water, the water level rose…

A: Ratio of mass to volume is termed as density which can be represented by a formula as:…

Q: Ultrapure silver is used to make solid state devices such as computer chips. What is the mass in…

A: Given: density of silver = 10.50 g/cm3 radius of cylinder = 3.50 cm length of cylinder = 12.40 cm

Q: calcium, how many kilograms of calcium are there in a

A:

Q: When 89.329 g of an irregularly shaped sample of cobalt was placed in a container and filled to the…

A: Given: Total volume of liquid = 25.00 mL. Mass of Cobalt = 89.329 g. Mass of cobalt with ethyl…

Q: A beaker weighs 145.60 grams. The chemical weighs 3.467 grams. What is the total mass?

A: Given: Weight of beaker = 145.60 g Weight of chemical = 3.467 g

Q: If you have a coin made of the densest element that weighs 197.07 g, and has a thickness of 4.00 mm,…

A:

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

A:

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.