What are the basic four units of measurements?

Q: Explain why measurements are never exact.

A: The act of the measuring the size of an object is known as measurement. It is numerical…

Q: write UNITS OF MEASUREMENT

A: The SI system, also called the metric system, which is used around the world.

Q: Why is it important to always include units when recording measurements?

A: It is important to always include units when recording measurements.

Q: The number 18.01937 rounded to 3 significant figures is

A: Rounding a number to three significant figures in the same way ,rounding to three decimal places.…

Q: What kind of situation in which you might need to convert the units of a measurement ?

A: when describing size of macro units we use units like grams, kilograms.When describing size of micro…

Q: Can a set of data be accurate but not precise?

A: Yes, to some extent. This direction is more involved. Let’s use the example of direction (1) but…

Q: Write the two conversion factors that can be written forthe relationship between cm and in.

A: Units of measurement are defined as the fixed magnitude or quantity that can be defined and adopted…

Q: When the calculation (2.31)(4.9795x10^3)(1.9971x10^4) is preformed, how many significant digits…

A: The significant figure refers to particular digits in a number. According to the measurement rule,…

Q: Is it possible for measured data to be precise but inaccurate?

A: Here we have to explainIs it possible for measured data to be precise but inaccurate-

Q: What is measuremen

A: Thermometer : It is a instrument used to measure the temperature . A glass thermometer works on the…

Q: why it is important to use significant figures in measurement? What is an example of significant…

A: Significant figures/significant digits form an important part of mathematical and scientific…

Q: How is the metric unit of L defined?

A: The SI unit is known as the International system of units known for its standard method for…

Q: Lavoisier developed a new theory of combustion that over-turned the phlogiston theory. What…

A: Lavoisier developed a new theory of combustion and disproved the phlogiston theory. Lavoisier…

Q: How would I write 97,820 in standard scientific notation?

A: Scientific notations are used to express the very large or very small numbers in more convenient…

Q: Which weight would you expect to be suitable for weighing on an ordinary bathroom scale

A: An ordinary bathroom scale can be measured in kg.

Q: At what temperatures are the readings on the Fahrenheit and Celsius thermometers the same?

A: The intensity or the degree of heat that is experienced in a substance is called its temperature. A…

Q: Conversions: include the correct number of significant digits  a. 1.2 g to ug (micrograms) b. 10.0…

A:

Q: What is the estimated digit? A measurement done with no tools A digit added by the operator beyond…

A: in a measurement, the last digit is called an estimated digit.

Q: Write a brief explanation about importance of measurements in chemistry.

A: Accurate, precise measurement is a fundamental component of good science. For this reason,…

Q: Arrange the measurements from longest length to shortest length.

A: 1 km > 1000 inch > 10 yard > 250 cm Explanation All the values are at first converted into…

Q: write UNCERTAINTY IN MEASUREMENT

A: Uncertainty as used here means the range of possible values within which the true value of the…

Q: What Is Derived units?

A: A derived unit is a unit that results from a mathematical combination of SI base units.

Q: The number 1.00430 has ________ significant figures.

A: The given number is 1.00430

Q: Which instrument, the beaker or the graduated cylinder, provides the more precise measurement?…

A:

Q: O MEASUREMENT Multiplication and division of measurements

A: General Rules: For addition and subtraction, the same quantities or the quantities which can be…

Q: An unknown sphere that weights 5g is carefully placed in a graduated cylinder with 20 mL of water.…

A: The density of a substance is the ratio of its mass to volume. It is labelled in equation (1) in…

Q: e) 248 cm to millimeters

A: We have to predict the value in millimeters.

Q: Why is it incorrect to say that the results of the measurement were accurate but not precise

A: While measuring any unit we work to meet the accuracy that means how close the measurements done to…

Q: Distinguish between the terms accuracy and precision.In general, explain why a precise measurement…

A: To find: Difference between the terms accuracy and precision. Explanation for why a precise…

Q: What is the measurement of water in the graduated cylinder (without units)?   How many significant…

A: Graduated cylinder is also known as measuring cylinder. It is a laboratory equipment which is used…

Q: me symbol of a simple unprefixed SI unit has been left off of each measurement in the table below.…

A: SI unit for length, height , width , breath is meter ( m ). SI unit for mass is kilogram ( Kg). SI…

Q: What are the two unit factors that relate meters and millimeters?

A: Two equivalent quantity’s ratio is unit factor. So the quantity in the numerator and denominator…

Q: Indicate what property each of the following measurements describe:

A: 1) 5.6 ns.     time     Explanation: ns = nano seconds.   Seconds is the measure of time.  2) 3.2…

Q: n kilograms is

A:

Q: Measurements are said to be precise. Explain why?

A: The precision of a measurement is defined as the degree of closeness of the multiple set of readings…

Q: Question is attached

A: Measurement: It is the process of assigning the numbers to the characteristic of any substance that…

Q: The density of a substance relative to the density of water.  It is one of the few measured values…

A: The density of any substance is mass by volume. Density=massvolume The unit of mass is Kg and the…

Q: What are the metric prefixes from largest to smallest?

A: The metric prefixes  are shown below from the largest to smallest  Mega = 106 Kilo = 103 hecto = 100…

Q: Converting units of measurements

A: The measurement units can be converted to each other with the help of dimension analysis method.

Q: Explain why standard units of measurement are particularly important to scientists.

A: HERE ARE SOME REASONS:

Q: Which is a more accurate volume-measuring instrument, a graduated pipet or a graduated cylinder?…

A: Liquid volume is usually measured using either a graduated cylinder or a buret. As the name implies,…

Q: When a measuring scale is used properly to the limit of precision, the least significant digit…

A: Note - There is a word error in your question, i.e., least should be replaced by last. Taking it…

Q: What are the apparatus used to measure objects? What are they measuring (ex. Ruler measures the…

A: There are many apparatus used for measuring objects like for measuring length of an object,…

Q: What value of a measurement must be available if the accuracy of a measurement is to be determined

A: The physical dimensions of a substance are calculated by observing and taking down the measurements.…

Q: Decide whether each proposed multiplication or division of measurements is possible. If it is…

A:

Q: Calculate the mass of ethanol in 1.83 qt of ethanol. The density of ethanol is?

A: Calculate the volume of ethanol:

Q: What is the volume and density of aluminum? what is the volume and density of granite? what is the…

A: Volume depends upon the object we take. We can take any volume of the object. Since Aluminium,…

Q: What are the key features of the metric system of measurement?

A:

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.