Underline the significant zeros in the following numbers:(a) 0.41     (b) 0.041     (c) 0.0410     (d) 4.0100×104

Q: The speed of light in a vacuum is 2.998X10⁸m/s. What is itsspeed in (a) km/h; (b) mi/min?

A: Speed of light- This phenomenon is is proposed by Einstein in 1905. It is denoted by ‘c’. It is…

Q: Name the SI base units that are important in chemistry,and give the SI units for expressing the…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3 sub-parts. Please resubmit the…

Q: The density of air at ordinary atmospheric pressure and25 °C is 1.19 g/L. What is the mass, in…

A: When density of any specific matter (gas, solid, or liquid) is provided along with its occupied…

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: Finally, sometimes the desired value does not directly match the units given but is derived from the…

A: Given: The volume of a sheet of metal = 45.5 cm3 Width = 14.8 cm Length = 15.9 cm

Q: Suppose that instead of using the cylindrical rod of Example 1-2 to prepare a 1.000 kgmass we were…

A: The volume of a spherical ball will be directly proportional to the cube of the radius of the…

Q: The average density of whole milk is 1.034g cm^-3. What is its density in lb gal^-1?

A: Conversion required is,

Q: Is it possible to determine the density of liquids at high temperatures using a Pycnometer?

A:

Q: To do the following conversion. Convert: 53.8 Fahrenheit Round answers to the nearest hundredth, if…

A: • We need to convert 53.8 °C into _____°F

Q: The diameter of a red blood cell is about 3 × 10−4 in. What is its diameter in centimeters?

A: Red blood cell (RBC) is the component of blood. It helps in the transport of oxygen to the body…

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: What is the mass of 18 cm cube of iron if the density of iron is 7.87 g/cm ^3?

A: Step : 1             What is the mass of 18 cm cube of iron if the density of iron is 7.87 g/cm 3?

Q: If the temperature is -55 °F, what is the corresponding temperature on the Kelvin scale?

A:

Q: How long (in minutes) would it take someone driving 31 m/s to travel 55 miles?

A:

Q: 1. What is a force of 2 kg-m/s² equivalent to in newtons? What is a force of 2 Ibm •ft/s" equiv-…

A: Conversion of units is the conversion between different units of measurement for the same quantity,…

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: How many minutes will it take a car to travel 857 km if the car is moving at a constant speed of 25…

A:

Q: The density (d) of a substance is an intensive property that is defined as the ratio of its mass (m)…

A: Extensive properties are those that depend on the amount of matter present in the substance.…

Q: What is the temperature in Kelvin if it is 77.3 °F outside?

A: Given: Temperature in oF = 77.3 oF.

Q: If amigrating loon flies at an average speed of 14 m/s, what is itsaverage speed in mi/hr?

A: The unit conversion has an important role in the calculation of numerical and some standard data.…

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: Express the answers to the following calculations inscientific notation:(a) 145.75 + (2.3 × 10−1)(b)…

A: Scientific Notation: It is a way of expressing number in the form of powers of 10 to specify the…

Q: What are the standard SI base units of length, mass, time, andtemperature?

A: Standard SI base unit of Length - Meter (m) Standard SI base unit of Mass - Kilogram (kg)

Q: What is the value of 98 °F in units of °C?

A: oF can be converted to oC by using following formula.  (oF -32) x (5/9) = oC

Q: 3. Which of the following states of matter has a fixed volume and a fixed shape?

A:

Q: If a bullet travels at 945.0 m/s , what is its speed in miles per hour?

A: for the conversion of units m/s to mi/hr use the following data 1mile = 1609.344 m 1hr = 60 min = 60…

Q: The average speed of the International Space Station as it orbits the earth is 7710 m/s.  What is…

A: Distance can be measured in different units such as meters , centimeters , kilometers , miles  Some…

Q: What is the number of significant figures does the sum of the following contain   .3+ 5.652 , the…

A: 0.3+ 5.652

Q: Which among the properties are measurable? Which ones are not?

A: Measurable properties are those properties that can be measured using scientific tools.

Q: b. A hiker inhales 598 mL of air. If the final volume of air in the lungs is 612 mL at a body…

A: Volume of air is Directly proportional to the Temperature of air.  V1 = 598 ml V2= 612 ml

Q: The radius of a copper (Cu) atom is roughly 1.3 × 10−10 m. How many times can you divide evenly a…

A: The radius is given as, 1.3 x 10-10 m. The diameter will be 2.6 x 10-10 m. Length of copper piece =…

Q: Express the following measurement in the designated unit 45 g/l to μg/ml

A: Gram is a unit of measurement which is denoted by the symbol 'g'. Liter is a unit of measurement…

Q: Pure oxygen diffuses through an aperture in 224 seconds, whereas a mixture containing 80% oxygen gas…

A:

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

A:

Q: (a) Read the following description of the element zinc andindicate which are physical properties and…

A: Chemical property- The property in which chemical reactions are happened called as chemical…

Q: The world record for the hundred meter dash is 9.58 s. What is the corresponding average speed in…

A:

Q: In the year 2013, an estimated amount of 36 billion metrictons (1 metric ton = 1000 kg) of carbon…

A: Conversions are, 1 metric ton=1000kg  1 kg = 1000 g 1015 is called prefix Peta.

Q: In the year 2013, an estimated amount of 36 billion metrictons (1 metric ton = 1000 kg) of carbon…

A: solution- 1 metric ton =1000 kg 1 kg = 1000 grams  metric ton conversion into grams ; 1 metric ton…

Q: In which state of matter do the particles of a chemical have the highest kinetic energy?

A: The state of matter in which the particles will be packed loosely will have maximum movement of the…

Q: What is the minimum mass of hubnerite (MnWO), a tungsten ore, from which 85.0 g of pure tungsten…

A:

Q: 7. A submarine cruises through the water at a speed of 26.4 nautical miles per hour. If there are…

A: Question-7 Given data speed of submarine =26.4 nautical mileshr and  1.15 regular miles=1 nautical…

Q: Which of the following is a good hypothesis when someone observes that the car won't start in the…

A: Hypothesis  A hypothesis is an assumption, an idea that is proposed for the sake of argument so that…

Q: A barometer is filled with a cylindrical column of mercury that is 76.0 cm high and 1.000 cm in…

A: Volume of a cylinder is given by the equation,

Q: The world record for the hundred meter dash is 9.79s. What is the corresponding average speed in m/s

A: Answer

Q: Which intensive physical property is observed when the droppings of a person seated inside a closed…

A: Intensive property is the one  does not depend on the amount of substance.

Q: 9. Which of the following statements does not describe a physical property of chlorine? A) Chlorine…

A: 9. Physical properties - Properties that can be measured without changing the identity of a…

Q: HoLw many From the Sun to reach Earth? (The minutes does it take light distcince From the Sun to…

A: Given,            distance from sun to earth = 93 million miles            speed of light = 3.00 x…

Q: Suppose an astronaut has landed on Mars. Fully equipped, the astronaut has a mass of 132 kg, and…

A: The weight of a system is given by mg, where m is the mass of the system and g is the g is…

Q: Which of the following objects has the greatest kinetic energy?a 1,000-kg carmoving at 50 km/h

A: The given data: Mass, m= 1000 Kg  Velocity, v = 50 km/hr

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.