`2,5 cm 1.25 cm 5.30 cm

Q: How do I find the scientific notation of 82,000,000 s if the number of signtificant figures is 4?

A: The number given is 82,000,000 s And number of significant figures required in final answer is 4.

Q: A piece of metal that is a cube with sides of 1.66 cm has a mass of 69.000 g.  Calculate the density…

A: TO calculate the density of the metal, first of all we determine the volume of the metal cube.

Q: An object weighing 1.840 kg has a volume of 0.0015 m3. What is the density of the object in g/cm3?

A: Given values are,  Mass= 1.840 kg =1840 g Volume =0.0015 m3 = 1500 cm3  Density =?

Q: Nickel metal has a density of 8.90g/cm^3. What is the mass in milligrams, of a 15cm^3 sample of…

A: The density of a substance is defined as a mass of a unit volume of the substance. The density of a…

Q: m= 15.5g, V = 6.01 cm3, what is the density?

A: Density (d) is the measure of mass per unit volume.                        d=mass(m)volume(v)

Q: The tablecloth on my dining room table is 2 m long, which is

A: The length of the table cloth is 2m long which we need to convert into cm and in

Q: The distance between San Mateo and Los Angeles is about 415 miles. What is this distance in meters…

A:

Q: A copper refinery produces a copper ingot weighing 150 lb.If the copper is drawn into wire whose…

A: 150 lb= 150*0.45 kgs =67.5 kg= 67500grams density of copper=8.94g/cm3 Volume of copper present=…

Q: - a) Explain how you can determine the density of an unknown liquid using a pycnometer. b) A…

A:

Q: what mass (in g) of solid lead would displace exactly 234.6 liters of water? The density of the lead…

A: Given : density of lead = 11.4 g/cm3                                                 Volume of water…

Q: An asteroid has a diameter of 501.08 mi, and a mass of 1.007 x 10 21 lbs. What is it's density in…

A: Radius can be obtained by dividing the diameter with 2. Then, diameter in miles can be converted to…

Q: The Kohinoor Diamond ( d= 3.51 g/cm^3) is 108 carats. If one carat hasa mass of 2.00 x 10^3 mg ,…

A:

Q: What is the density of lead (in g/cm3 ) if a rectangular bar measuring 0.500 cm in height, 1.55 cm…

A: Volume of the box = height x width x length = 0.500 cm x 1.55 cm x 25 cm = 19.375 cm3.

Q: 4. The density of aluminum is 2.7 g/cu. cm. What is the weight in pounds of a Solid sphere of…

A: Given that, the density of aluminum is d = 2.7 g/cm3. The radius of the solid sphere of Aluminum is…

Q: If an object as a density of 4.00 g/cm^3, what is its density in units of kg/m^3?

A: Given : density = 4.00 g/cm3

Q: If a large marshmallow has a volume of 3.00 in3in3 and density of 0.242 g/cm3g/cm3, how much would…

A: Given :-  density = 0.242 g/cm3  volume = 3.00 in3  To be calculated :-  mass (in grams)

Q: a 158-kg cube of unknown metal measures 14.3 inches on each side. What is the density of the unknown…

A: A 158-kg cube of unknown metal measures 14.3 inches on each side. The density of the unknown metal…

Q: A steel cylinder has a length of 2.16in, and a radius of 0.22in, and a mass of 41g. What is the…

A: The term density refers to a measurement which is used to measure the amount of matter which is…

Q: What is the density in g/cm^3 of 255g of solid metal with the volume of 41cm^3?

A:

Q: How long a trip, in kilometers, can be made on one full tank of gasoline? Express your answer to two…

A: Two numerical problems based on unit conversion, which are to be accomplished.

Q: A cube of plastic 1.3x10-5 km on a side has a mass of 2.1g. What is its density in g/cm3?

A: Given  mass of cube = 2.1 g side of cube = 1.3 x 10-5 km = 1.3 x 10-5 x 105 cm = 1.3 cm Volume of…

Q: A cube of osmium metal 1.500 cm on a side has a mass of 76.31 g at 25 ∘C What is its density in…

A: Formula to be used: Density = mass/volume Volume of a cube = (length of side)3 Given that: Mas of…

Q: (a) What is the length of the pencil in the following figure ifthe ruler reads in centimeters? How…

A: Introduction- Significant figures are the digits that have meaning and are non zero integers. To…

Q: An object with a mass of 0.255kg and a density of 2.89 g/cm^3 measures 34mm in length and 46mm in…

A: Given : Mass of object = 0.255 Kg  Density of object = 2.89 g/cm3  Length of object = 34 mm = 3.4 cm…

Q: 2. A circle has a radius of 0.58 yd. What is the area in cm2 ? 3. What is the volume of a sphere, in…

A:

Q: The distance from Earth to the Moon is approximately240,000 mi. (a) What is this distance in meters?…

A: The distance of the earth from the moon in meters can be expressed as follows-

Q: please help with this 1) Sally Leadfoot was pulled over on her way from Syracuse to Ithaca by an…

A: The solutions are given below -

Q: The pediatric dose of cefixime is 30 mg/kg/day. If a child was given a daily dose 2 teaspoons of…

A:

Q: If a regulation "fast -pitch" softball (188g; spherical in shape) has a circumference of 30.5cm at…

A:

Q: A piece of metal has a mass of 6g and it displaced 3 mL of water in a graduated cylinder. What is…

A:

Q: ations. Calculate the volume (length x width x height) in units of mm³ (mm x mm x mm) fo large…

A: Volume = length * width* height Length = 254.7 mm Width = 25.3 mm Height= 136.8 mm Volume =…

Q: Titanium is used in airplane bodies because it is strong and light. It has a density of 4.55…

A: Diameter of cylinder is double of its radius. So,by knowing the radius of the cylinder,its diameter…

Q: (a) How many significant figures should be reported for thevolume of the metal bar shown here? (b)…

A: The volume of the metal bar is calculated as shown below. The volume of the cube is 16.56 cm3 which…

Q: . You are an athlete weighing 78 kg. If you are required to lose 9 kg, what would your final weight…

A:

Q: 2) If a brick has a length of 13.77 cm, a width of 8.50 cm, and a height of 5.12 cm: a) What is the…

A:

Q: A copper refinery produces a copper ingot weighing 150 lb.If the copper is drawn into wire whose…

A: Given that, Weight of copper ingot=150 lb=67.5 kg (since 1 lb=0.45 kg) 67.5 kg=67500 g (since 1…

Q: Enter your answer in the provided box. Carry out the following calculation, paying special attention…

A: Given that : We have to perform the following calculation keeping in mind the significant figure :

Q: A room has a width of 14.1 feet, a length of 15.5 feet, and a ceiling height of 12.0 ft. If the…

A:

Q: 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?

A: Given : Length of side of cube = 1.5 cm And mass of cube = 42.0 g

Q: 1.100 What is the density of lead in g/cm³ if a rectangular bar measuring 0.50 cm in height, 1.55 cm…

A: The density of lead in g/cm3 is to be calculated.

Q: A cylindrical tube 13.7 cm high and 1.20 cm in diameter is used to collect blood samples. How many…

A: The expression for finding volume of cylinder having radius of r and height of h is as follows,…

Q: The mass of a glass beaker is known to be 25.1 g. Approximately 5 mL of water areadded, and the mass…

A: Given, mass of a glass beaker = 25.1g

Q: 1. Calcium, an element, is a dull, gray solid that melts at 839°C. When it is placed in water,…

A: As per the rules, only the first question can be answered:

Q: A thief plans to steal a gold sphere with a radius of 28.9 cmfrom a museum. If the gold has a…

A: The radius of the gold sphere = 28.9 cm The volume of the sphere can be calculated from radius as:

Q: 3. What is the density (in g/cm3) of a solid sphere with a mass of 8235 mg and a radius of 5.0 mm?

A: In given question  Density = mass / volume  Formula used.

Q: For items 1-2: A block of wood weighs 64.02 g and has the following dimensions: length of 15.0 cm,…

A: The mass of a substance m can be related to the volume V in which it is occupied by the component…

Q: A cube of plastic 1.3 × 10−5 km on a side has a mass of 2.1 g. What is its density in g/cm3?

A:

Q: A thief plans to steal a gold sphere with a radius of 28.9 cmfrom a museum. If the gold has a…

A: Given: Radius is 28.9 cm Density is 19.3 g/cm3

Q: Osmium has a density of 22.6 g/cm^3. What volume (in cm^3) would be occupied by a 27.1 gram sample…

A: Density of Osmium  = 22.6 g/cm3 Mass of Osmium = 27.1 g  Volume = ?

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.