Lavoisier developed a new theory of combustion that overturned the phlogiston theory. What measurements were central to his theory, and what key discovery did he make?

Q: One important observation that supporters of the phlogiston theory had trouble explaining was that…

A: Lavoisier, a French chemist, conducted an experiment in which he decomposed the mercury calx into…

Q: A new model of car is advertised as having a gas mileage of 5.0 km/L. Convert this rating to miles…

A:

Q: The average mass of a female adult brain is 1.198 kg. Convert this mass to cg.

A: Introduction :  We have to convert kg to cg.

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

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

Q: What is the density of aluminum if you have a piece of aluminum that is 10.5 cm x 10.5 cm x 0.1 cm…

A:

Q: 2. Identify as true (T) or false (F): | Scientific method may never prove a theory to be wrong.…

A: Scientific studies involve the basic design of the research work to be carried out, setting the…

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: If the density of water = 1.000 g/mL, determine true volume of water in a 10 mL grad cylinder filled…

A: The volume of water can be calculated from the density and mass of water.  The true volume of water…

Q: Why can two conversion factors be written for an equality such as 1 m = 100 cm?

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

Q: 0.009 hm %3D cm 1.0023 dm = hm 0.2203 daL = µL %3D 515 cm = km

A:

Q: Follow the format used in the image provided and the answer must be in scientific notation. mL to…

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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 are the fundamental SI units of measure for mass, length, and temperature?

A: SI unit is commonly used to determine the standard unit of measurement of a quantity.

Q: What is the importance of using laboratory equipment and apparatus?

A: Given : Laboratory equipment and apparatus To find : Importance of Laboratory equipment and…

Q: 1. What are the basic units of length, mass, volume, and temperature in the SI system?

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Q: Distinguish between accuracy and precision and between systematic and random error (§1.5) (EPs…

A: Accuracy – How close a measurement is to the actual or expected value. Precision – How close a set…

Q: Lead has a density of 11.4 g/cm3. What is the density in kilograms per cubic meter? Write your…

A: The given physical quantities can be converted into other physical quantities by knowing 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: you measure water in two containers: a10-mL graduated cylinder with marks at every mL, and a 1-mL…

A: In case of addition and subtraction, the number of digits in decimal point of the sum or difference…

Q: What is the standard practice for significant digits when recording test data? Why are significant…

A: 1. Most standards for science and technology, led by ASTM E29, use the “five-even” rule. Under this…

Q: 2. There are 365 days per year, 24 hours per day, 12 months per year, and 60 minutes per hour. Using…

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Q: Convert the measuring units as indicated. 1. 10560 ft = mi 2. 21120 ft = mi 3. 8800 yd mi %3D

A: 1 mile (mi) = 5280 feet (ft) 1 mile (mi) = 1760 yard (yd)

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: .Identify the three steps in the scientific method.

A: A scientific method is based upon questioning and reasoning about certain kinds of changes taking…

Q: Differentiate between Precision and Accuracy?

A: Solution :    Accuracy and precision play a very important role in determining the measurement of an…

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: Type the answer derived from the following dimensional analysis setup. Be sure to round your answer…

A: ML =1.5 x 1021 L x 1 ML ÷ 106 ML = 1.5 x 1021-6 ML

Q: Explain the difference between precision and accuracy.

A: The standard unit of measurement is easy to understand by everyone as it gives the measurement ease…

Q: 1. Complete the following statement: Data that have a large systematic error can still be  a.…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: 16.1 cm2 converted to km2

A:

Q: At sea, distances are measured in nautical miles and speeds are expressed in knots.  (1 nautical…

A: 1 nautical mile = 1.151 miles

Q: Be sure to answer all parts. The area of a telescope lens is 6.783 x 10 mm. (a) What is the area in…

A:

Q: Follow the format used in the image provided and the answer must be in scientific notation. a. 35.0…

A: Given,a. 35.0 mLRequired,                     Conversion of mL to hm3 .

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: Assume it takes 7 minutes to fill a 30 gallon gasoline tank. Determine the time interval, in hours,…

A: Rate at which the tank is filled can be expressed in terms of total volume divided by total time.…

Q: How should a 10 mL graduated cylinder be read and why?

A: Graduated cylinders are widely used to measure liquids/solvents. Small graduated cylinders such as…

Q: 3. Why did you classify the properties that you observed as physical, extensive, intensive, or…

A: Since you have posted multiple question, as per our company guidelines we are supposed to answer the…

Q: What are the examples of Quantitative Chemistry?

A: Interpretation: The examples of Quantitative Chemistry are to be provided.

Q: Convert: 24.7 cm to mm 2.5 g/cc to Kg/m^3 60cm/s to m/s 1500 tons to kg

A: Given conversions are : a). 24.7 cm to mm b). 2.5 g/cc to Kg/m^3 c). 60cm/s to m/s d). 1500 tons to…

Q: A slow jogger runs a mile in 13 min. Calculate thespeed in (a) in/s, (b) m/min, (c) km/h (1 mi =…

A: Speed is defined as distance travelled per unit time. Speed = DistanceTime   Now, a jogger runs 1…

Q: 1.0936 yards 1 pound 453.59 grams 16 ounces 1 meter 1 ton 2000 pounds 907.184 kilograms 2.54…

A: Unit conversion can be done using the formula given below:

Q: What is the difference between a qualitative and quantitative measurement?

A: The difference between a qualitative and quantitative measurement it to be explained. Qualitative…

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

A: HERE ARE SOME REASONS:

Q: A car’s rate of fuel consumption is often measured in miles per gallon (mpg). Determine the…

A: Density is defined as the mass per unit volume. It is represented by rho . It’s relation with mass…

Q: Many plastics have a density that is less than 1.0. Could the water displacement method used to…

A: No, water displacement method can not be used to measure the density of the object whose density is…

Q: Iron pyrite (fool's gold, page 11) has a shiny golden metallic appearance. Crystals are often in the…

A: Qualitative property: A property which cannot be measured but can only be observed and tells about…

Q: State the nomenclature for prefixes used to examine large and small measurements in scientific…

A:

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.