If a stufent dropped their copper on the floor,they could carefully pick it up and place it on the balance to obtain an accurate result true or false?

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: Identify each physical property as extensive or intensive.a. melting point c. densityb. mass d.…

A: An intensive property is the physical properties that depend upon the amount of the matter. The…

Q: A small beaker was found to have a mass of 27.847 g. A 10.00 mL sample of an unknown liquidwas…

A: Answer :- 1.225 (g.mL-1)  Density of unknown liquid (solution) = 1.225 g.mL-1…

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: Perform the following calculations and record your final answer with the correct number of…

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

Q: graduated cylinder weighs 35.825 g. When 10 mL of water is measured in it, the weight of the…

A: Given: Weight of the graduated cylinder = 35.825 g. The weight of the graduate and water= 45.835 g…

Q: 2. Complete the blanks in each row as in the first: a) underscore the last significant figure in the…

A: Solution: We have three rules for significant figures 1.Non-zero digits are always significant. 2.…

Q: Round off 0.007807 to three significant figures. Enter your answer in the provided box.

A:

Q: Based on the measurement uncertainty of the below instruments, which instruments would yield the…

A: The apparatus that gives more accurate values, would yield the lowest percentage error.

Q: which balance is more precise one that weight cg or one that weighs mg

A: Centigram(cg): a unit of mass equal to 0.01 of a gram. milligram (mg): a unit of mass equal to 0.001…

Q: Round off or add zeros to calculate answers to give a final answer with three significant figure…

A: The rules for significant figures are: 1)  Zeros between two non-zero digits ARE significant. 2) All…

Q: combined mass of ten raindrops in grams?

A: Given : The mass of a raindrop = 8 milligrams or 8 mg

Q: an object hass a mass of exacty 5g on an analytical balance that has an accurary of 0.1 mg , to how…

A: Accuracy of analytical balance is 0.1 mg. Conversion of unit from mg to g is,

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: Enter all measured data, and certain final answers to the correct number of significant figures as…

A: In this question, the values of the following are given with the correct number of significant…

Q: 4. Three different people weigh a standard mass of 2.00 g on the same balance. Each person obtains a…

A: Accuracy - It is the virtue of obtained measurements to match the actual value of the any given…

Q: dimensional analysis: 2feet 9inches to meters

A: The given number is = 2 feet 9 inches The value in meter is =?

Q: Define significant figures with examples?

A: In chemistry due to the uncertainty in measurements, to get a real data precision and accuracy is…

Q: One cubic meter 1 m³ of aluminum has a mass of 2.70×10³ kg.and 1 m³ of iron has a mass of 7.86×10³…

A:

Q: Carry out the following mathematical operations and answer the questions that follow. 33.916 x 95.7…

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

Q: Which of the following is a good practice in weighing solid samples? A Do not return the mass…

A: For accurate and pure weighing of solid samples Use weighing paper, a watch glass, a beaker, or some…

Q: Convert 2.00mm to meter A) 0.00200m B) 0.0200m C) 0.200m D) 0.000200m E) none

A:

Q: 1- Which statement is not a good practice during weighing in Chemicals should never be placed…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

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

A: Ordinary bathroom scale has a range – 1 kg to 140 kg

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

A: Precision can either be the number of decimal places to which you are sure, or the consistency of…

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: For each box, examine the blocks attached to the balances. Based on their positions and sizes,…

A: Density is calculated by two things – Density = MassVolumeDensity α MassDensity α1Volume

Q: Celsius and 73

A: According to the ideal gas equation pressure is directly proportional to the number of moles,…

Q: How much would be 20.Mg in lbs and how would I put the answer into sig figs and scientific notation?

A:

Q: Can you help me please? If it includes these in the question, can you solve it using significant…

A: Arsenic trifluoride has 26 valence electrons and As is the central atom. There are four regions of…

Q: of significant figures in

A:

Q: Which of the following is a best practice in weighing solid samples? (A Do not return the mass…

A: To identify: The best practice in weighing solid samples.

Q: 36 ounces of beer is equivalent to how many standard drinks?

A: For a standard drink, a 5% alcohol beer bottle of 341 mL is equivalent to 12 ounces.

Q: Determine a single factor that can be used as a multiplier to 1.5 oz to grams

A: The term conversion factor can be termed as the formula or the number which is required for the…

Q: How many grams Fin 650.1 g BrF? Put the answer in the box in regular (non-scientific) notation. Use…

A: Given: Mass of Br2F6 = 650.1 g  and we know that the molar mass of Br2F6 is 273.7984 g/mol

Q: A volumetric buret should always be read to _______ decimal places.

A: Volumetric buret is a measuring glassware which is used in labs for the accurate dispensing of a…

Q: How many grams F in 511.9 g Br2F6?    Put the answer in the box in regular (non-scientific)…

A: Given: Mass of Br2F6 is 511.9 g and we know that the molar mass of Br2F6 is 273.7984 g/mol

Q: How many grams Fin 584.8 g Br2F6? Put the answer in the box in regular (non-scientific) notation.…

A:

Q: Which of the following is a best practice in weighing solid samples? A Place chemicals directly on…

A: For the majority of everyday objects, a balance is used to determine an object's mass. The balance…

Q: Use the References to access important values if needed for this question. When 52.7 and 84.3 are…

A:

Q: The agreement between the tested values is known as O A. Precision B. Certainty OC. Significant…

A: Given: Agreement between the tested values.  To find: what is this agreement between the tested…

Q: Convert 2.3miles/hour to ft/sec. Express you answer with the proper significant digits.

A: 1 mile is equal to 5280 feet 1 hour  is equal to 3600 sec

Q: Why does 120 only contain 2 significant figures?

A: We can understand this by knowing the rules for writing significant figures.

Q: 2. Complete the blanks in each row, as in the first: a) Find and underscore the last significant…

A:

Q: Please help use proper significant figure

A: Entropy of vaporization = 87.30 J/Kmole Enthalpy of vaporization = 33.30 KJ/mole

Q: Sampiz Exeraise A A 6.0Ft Person weighs 16816. Express this Ferson's height in meters and weight in…

A: Given: The height of the person = 6 ft The mass of the person = 168 lbs.

Q: Consider the operation below. (0.523) (1.2161 -0.99) + (2.648) (84 - 81.98) 0.87 How many…

A: The given operation has both addition/subtraction and multiplication/division. In…

Q: 25.0 ml of a liquid with a density of 1.20 g/mL weighs,

A: given, volume = 25 ml, density = 1.20 gm/ml As we know that, density = mass / 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.