A cube of ruthenium metal 1.5 cm on a side has a mass of 42.0 g. What is its density in g/cm3?

Q: A steel ball-bearing with a circumference of 32.5 mm weighs 4.20 g. What is the density of the steel…

A: Consider the given information is as follows; Mass of the steel ball = 4.20 g Circumference of the…

Q: International computer communications are often carried by optical fibers incables laid along the…

A: Given, the mass of optical fiber = 1.19 x 103 lb/m            Length of each strands optical fiber…

Q: The density of titanium is 4.51 g>cm3. What is the volume (in cubic inches) of 3.5 lb of…

A: Record the given data, Density of titamium is 4.51g/cm3 Mass of titanium is 3.5lbs

Q: A student needs to determine density of a liquid. The student determines mass of an empty flask to…

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Q: . A gold brick is 15.24 cm long, 7.62 cm wide weighs 5,690.0 g. What is the height of the brick?

A: Given that: Length of gold brick (l) = 15.24 cm Width (b) = 7.62 cm mass= 5690.0 g   The height of…

Q: The unit of weight used for precious stones is the carat (1 carat=200 mg ,exactly).If a particular…

A: Conversion of carat into mg: 1 carat=200 mg1.25 carat=1.25×200=250 mg Conversion of mg into g: 1…

Q: A loaf of bread with a volume 4,271 cm3 and density 0.221 g/cm3 is crushed in the bottom of a…

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Q: A sample of 14.2 cm3 of aluminum, in powdered form, was mixed with an excess of iron(III) oxide. A…

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Q: A cube of an unknown metal measures 0.375 cm on one side.  The mass of the cube is 0.474 g.  Which…

A: Given : length of metal cube = 0.375 cm  And mass of cube = 0.474 g

Q: 2. The density of Zinc is 7.13 g/cm³. What is the volume of a sheet of zinc that is 45cm by 60cm in…

A: Given information,   Density of Zinc = 7.13 g/cm3   Area is 45 cm x 60 cm and thickness is 0.0155 cm

Q: The density of osmium (the densest metal) is 22.57 g/cm3. If a 1.00-kg rectangular block of osmium…

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Q: what is the mass in grams of a cube of gold (density = 19.32 g/cm^3) if the length of the cube is…

A: Density :-  The ratio of mass of a substance to volume occupied by the substance is defined as…

Q: Aspirin has a density of 1.40 g/cm3g/cm3. What is the volume in cubic centimeters of a tablet…

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Q: If a sample of gold alloy has a mass of 87.7 g and is 78.3% gold by mass, what percentage of the…

A: An alloy of gold which contains gold and any other metals Mass of alloy = 87.7 g  % by mass of gold…

Q: Osmium has a density of 22.6 g/cm3. The mass of a block of osmium that measures 1.01 cm x 0.233 cm x…

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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

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.