Which of the following observations are qualitative and which are quantitative? a. I wear a size 73⁄4 hat. b. My favorite shirt is blue. c. Robins like to eat worms after a rainstorm. d. The weather bureau reported that hailstones measuring half an inch in diameter fell during last night’s storm. e. Washington and Baltimore are two very interesting cities to visit. f. Washington and Baltimore are only 40 miles apart.

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A:

Q: A group of five students attempted to estimate 100 g of a substance by balancing the amount of the…

A: Solution It has the average: Mean = (95.8634 + 80.8125 + 106.5078 + 98.2865 + 86.4453) / 5 = 93.5831…

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A:

Q: (b) A sampling plan is necessary to ensure that a laboratory sample is truly a representative of the…

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A:

Q: A student is measuring the density of a liquid and gets the following results: 0.658 g/mL, 0.656g/mL…

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A:

Q: Density is a physical property of a molecule that's measured as mass per unit volume. (a) Given that…

A: Details explanation is given below

Q: You record the following in your lab book: a liquid is thick and has a density of 4.58 g/mL. Which…

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Q: 1.The literature for a pharmaceutical product states that 26 patients of the 2, 103 enrolled in the…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

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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.

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A: The answer will be 69.46°F (rounding the answer to two decimal places)

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A: To solve this problem we have to convert the given distance in centimetres and metres .

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Q: The density of mercury is 13.6 g/mL. Comment on how the density of mercury could cause environmental…

A: Here we have to comment how the density of mercury could cause environmental problems-

Q: In England the price of gasoline averages around $1.59 per liter. Using unit analysis, calculate…

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Q: How is chemistry in our everyday life’s ?

A: The human beings survived by the chemical process includes, respiration, digestion, reproduction…

Q: How would you determine the density of an irregular object? O measure the mass of the object using a…

A: Density :-  The ratio of mass of an object to volume of the object is defined as its density Density…

Q: A D B.

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Q: An individual weighs 81.4 kg and is 1.78 m tall. (a) What is the person's equivalent measurement in…

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Q: a. Convert 3.5 weeks to milliseconds b.Convert 554 m/(day.kg) to cm'/(hr.g) c. Convert 920 lbm/ft'…

A: a. The conversion of weeks into milliseconds is shown below:  3.5 weeks×168 hrs1 week×60 min1 hr×60…

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A: Atomic radius is defined as the distance from the centre of nucleus to the outermost shell.

Q: The first pic are my results the 2nd one is the question

A: a. The mass of 25ml olive oil is calculated as, b. The volume of 25g of a liquid is calculated as,

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.