2.04 pm to meters Express your answer to three significant figures and include the appropriate units.

Q: Ethanol has a density of 0.789 g/cm3. What volume of ethanol in mL must be poured into a graduated…

A: Rules for significant figure  All non zero integer are significant  Exact number have unlimited…

Q: 25. What is 6.7 X 10³ in decimal notation?

A: The decimal notation of 6.7× 103 is given below.

Q: A piece of cardboard is 12.0 cm long and 6.3 cm wide. What is the area of this piece of cardboard in…

A: Given,A piece of cardboard is 12.0 cm long and 6.3 cm wide.

Q: 1.16 × 10¬8 s to nanoseconds Express your answer to three significant figures and include the…

A: Given, To convert 1.16 × 10-8 s to nanoseconds

Q: 3.32 x 10- g to micrograms Express your answer to three significant figures and include the…

A: Given : Value in grams = 3.32 X 10-5 g

Q: The number of significant figures in the measurement of 4.500 X 104 Jis

A: Digits which are significant • any digit that is NOT ZERO.• any digit between significant…

Q: A student measures the melting point of an unknown compound to be 53.5 degrees C. She later…

A:

Q: How close does the lightning have to strike for you to hear it 2.5 s after it strikes? Round to two…

A: Light travels faster than sound. So it hits before sound. We can easily calculate the distance of…

Q: Gallium is a solid metal at room temperature but melts into a liquid in your hand. The melting point…

A:

Q: 2.36 pm to meters

A: Given L value in pm = 2.36

Q: Perform the following calculations and express each answer to the correct number of significant…

A: The solution is as follows :

Q: A cyclist rides at an average speed of 26 miles per hour, If she wants to bike 180 km, how long (in…

A: Please find your solution below : Speed is defined as the distance travelled per unit time. In other…

Q: If you are walking at a speed of 2.5 miles an hour how fast are you moving in kilometers a min.…

A: The speed in kilometers (km) per minutes, it is to be determined. Given: speed = 2.5 miles/hr 1 mile…

Q: Determine the density of an object that has a mass of 149.8 g and displaces 12.1 mL of water when…

A: Given     mass of object = 149.8 g  Volume of object = 12.1 mL   To find : density of an object

Q: A star is estimated to have a mass of 2 x 10 kg. Assuming it to be a sphere of avera radius 7.0 x…

A: Given data: Mass of star = 2 * 1036 kg, Radius = 7.0 * 105 km The star is assumed as circle thus,…

Q: Express the following quantity in standard notation for the given unit. (Do not type the unit into…

A:

Q: Liquid hexane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water .…

A: Given  Mass of hexane= 16.4 g mass of oxygen = 25.0 g to find mass of carbon dioxide =?

Q: You measure the distance between to cities to be 42.0 miles. You need to send this data to Brazil…

A: Convert 42.0 miles to km ?

Q: The number 7.134×10^7in normal decimal notation is?

A: Basic rules to convert scientific notation into decimal notation :If the exponent is positive, move…

Q: 4.76 pm = how many micrometers

A: Unit conversion:Unit is refer to the term of measurable quantity. There are so many units are used…

Q: The sides of a certain rectangular wood block were measured 0.1294 meters, 7.41 centimeters and 9.4…

A: The volume of a given substance is defined as the amount of the space occupied by the substance that…

Q: How manny cars are there in a long freight train if it takes the entire train 2.00 min to pass a…

A: Given, the long freight train takes time = 2 min Train travels to station per hour = 40 miles per…

Q: Carry out the following conversions. Report your answers to the correct number of significant…

A: (G)• convert 31.8 Pounds to Grams :-To convert 31.8 Pounds to Grams you have to multiply 31.8 by…

Q: What is the area of a piece of metal foil that measures 43.9 cm by 29.21 cm? Express the answer to…

A: Since we know for a rectangular foil area = length × breadth  Here , Length = 43.9 cm…

Q: Gaseous ethane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water .…

A: Combustion reaction - The reaction in which a substrate reacts with gaseous oxygen to produce…

Q: A solid occupies a volume of 0.0103 cm3 and has a mass of 16.8 mg. To the proper number of…

A: The density of a substance is calculated as shown below: Density=massvolume and its unit is g/cm3…

Q: Consider the following problem. How should the answer be rounded, to accurately indicate correct…

A:

Q: Suppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. Your…

A: Here we have to calculate the answer to two significant figures.

Q: How many days are in 41,700 minutes? (Assume exactly 24 hours in a day). Express your answer with…

A: Since each day has 24 hours  And each hour has 60 mins Hence number of minutes in a day = number of…

Q: You were asked to determine the perimeter of the cover of your textbook. You measure the length is…

A:

Q: Rolls of foil are 304 mm wide and 0.014 mm thick. (The density of foil is 2.7 g/cm3 .)What maximum…

A: The density of a substance is equal to the ratio of its mass and volume. In general, the density of…

Q: volume

A: According to the question, Volume of a cube =4.55×10-24mL We need to determine the length of one…

Q: 1.19×10^−8s to nanoseconds Express your answer to three significant figures and include the…

A: Dimensional analysis also called unit factor or factor label method, is simple way to analyse the…

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.