When you see this number: 0.00000123, how do we mathematically and scientifically see this:  a. it is a must to convert this to scientific notation b. it has 3 significant figures c. it has 7 significant figures d. it has 8 significant figures

Q: You and some friends plan a road trip across country. The total distance is 2105 miles. Your car…

A: Total distance is = 2105 miles The car travel in a gallon is = 33 miles/gallon The cost of fuel is =…

Q: Convert 3.00 yards to to dm (decimeters) dm How many significant figures should the answer be…

A: 1 yard = 9.144 dm

Q: A shipping box has a length of 7.00 in., a width of 6.00 in., anda height of 4.00 in. (2.3)a. What…

A: Since you have posted questions with multiple subparts, we will solve the first three for you. For…

Q: 1. A graduated cylinder is filled with 11.21 mL of water. A student adds 10 coins to the graduated…

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Q: A graduated cylinder contains 32mL of water, A stone with mass of 29g is placed in the cylinder. the…

A: Density can be calculated by dividing mass by volume. Density = MassVolume…

Q: A jogger runs a mile in 8.92 min. Calculate the speed in in/s.

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Q: For each of these problems, set up the calculation as described in your worksheet, using the proper…

A: As we know the conversion factor is  1 inch = 2.54 cm. Using this equation we can easily convert…

Q: Write the numbers in scientific notation. 673.5 673.5 = x 10° 0.034 0.034 = x 10 b =

A: The numbers given are 673.5 and 0.034.

Q: A substance has a known density of 7.81 g/mL. A large piece of it is measured, and the volume is…

A: Here we use the formula   d = m/v.  Where d= density, m= mass,…

Q: An astronaut on the moon places a package on a scale and finds its weight to be 19 N. (a) What…

A: On the moon, acceleration due to gravity is (gmoon)= 1.63m/s2 We know        F= m ×(gmoon)   Given…

Q: How you you convert 5 months to seconds?  what would the conversion equation look like for this?

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Q: A large stone weighs 53.0 kg how many pounds does it weight

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Q: a) Convert 1.50 gal to L. Along with the conversions on your equation sheet, you will need to know…

A: a) Given, 1.50 gal. Convert 150 gal.  into L.

Q: 6. A box contains a mixture of small copper spheres and small lead spheres. The total volume of both…

A: Given,  The total volume = Vt = 427 cm3 Total mass = mT = 4.36 kg = 4360 g.  Assume the volume of…

Q: A metal cylinder weighs 20.050 g. How many pounds (lb.) does it weigh?

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Q: The weight of a rock is measured to be 0.097 lbs. After placing the rock in a graduated cylinder…

A: Weight of rock = 0.097 lbs Volume of water = 19.92 mL Volume with rock = 33.21 mL Density = ?

Q: Osmium has a density of 22.6g/mL. What volume would be occupied by a 13.7g sample of osmium? Report…

A: Given that:  density, d = 22.6 g/ml Mass = 13.7 g V =?

Q: m cm - 4.2 × 10° х 10' ? S

A: For unit conversion, 1 m = 100 cm = 102 cm ( -4.2 × 105 ms) . 102  cm =  -4.2 × 107 cms

Q: When you see this number: 5.00, using these figures to be deducted with 2.25. In seeing again the…

A: Significant figures Precision of a calculation is determined by writing a number in a positional…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Distance is measured in different units such as meters (m) , centimeters (cm) , millimetres (mm) ,…

Q: What is the density of an object of mass 200.00 g and volume 25.0 mL? 1._______ / 2._______ =…

A: Given: Mass of object = 200.00 g And volume of object = 25.0 mL.

Q: A graduated cylinder originally contained 17.2 mL of water. An object weighing 14.1 g was then…

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Q: Very large and very small numbers are easier to write in scientific notation. For example, the…

A: Exponential notation for a number can be written in such a way that large numbers are written in…

Q: How many cubic centimeters are there in 2.11 yards cubed

A: This is a unit conversion problem. Lets go stepwise. 1 yd^3 = 0.7646 m^31 m^3 = 10^6 cm^3

Q: A metal has a mass of 30.000g when it is placed in a graduate cylinder containing 20.0 mL of water…

A: According to Archimedes principle, the volume of solid submerged in the water is equal to the volume…

Q: Celeste's diet restricts her intake of protein to 24 g per day.1lb=16ozIf she eats 0.60 oz of…

A: Diet restriction = 24 g protein per dayConsumed protein = 0.60 ozWe have, 1 lb = 0.16 ozSo, consumed…

Q: 1(a) Convert the number 0.0000735 to scientific notation. (b) Round off the number 24.15725 to the…

A: Applying concept of scientific notation and significant figures.

Q: A small hole in the wing of a space shuttle requires a 16.0 cm ^ 2 (a) What is the patch's area in…

A: Since we know that  1 cm = 10-5 km  1 cm2  = (10-5)2 km2 = 10-10 km2

Q: What is the density of an object of mass 45.00 g and volume 25.0 mL? 1._______ / 2.________ =…

A: Given: Mass of object = 45.00 g And volume of object = 25.0 mL.

Q: in scientific notation with the correct number of significant figures. a. Convert 31.7 feet into…

A: "Since there are multiple sub-parts in this question and it is not mentioned that which one has to…

Q: A block of aluminum has a mass of 675.27 g and a volume of 250. mL. Calculate the density of the…

A: A numerical problem based on density determination, which is to be accomplished.

Q: a) Convert 25.00 mL to qt. Use dimensional analysis b) Convert 66.3 m3 to mL. Use dimensional…

A: see the picture solution

Q: 1. Does heating a cup of water allow it to dissolve more sugar? Temperature of the water is measured…

A: As you nor specified so I am giving answer of first question as per guidlines Yes heating a cup…

Q: MEASUREMENT Setting up a one-step unit conversion A student sets up the following equation to…

A: 1 mL = 0.001 L

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: The given value is = -2.5×105 Ncm The student is going to convert the unit of N/cm into N/mm.

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Since we know that 1 m = 100 cm  hence cubic the above values we get  (1 m)3 = (100 cm)3  => 1 m3…

Q: 1.10 (a) How many significant figures should be reported for thevolume of the metal bar shown here?…

A: Since 2.5 cm has only two significant numbers, the volume is reported in 2 significant figures.…

Q: 14. Which of the following statements use only exact numbers? (a) The temperature in our dorm room…

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Q: 15. An object has a mass of exactly 5 g on an analytical balance that has an 'accuraey of 0.1 m many…

A: The degree of accuracy of the measurement can be calculated by using significant figures. In any…

Q: A marine biologist measures the volume of a seawater sample. The volume is 1211 mL. What is the…

A: We know, 1 Liter(L) = 1000 milliliters(mL)

Q: A metal object has a mass of 8.37 g. When it was placed in a graduated cylinder containing 20.0 mL…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: 20.4 inches to meters

A: given, 20.4 inches

Q: Someone invents a new unit of measurement called a yterg and defines that 14.6 grams is equal to…

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Q: 3. Use exponential notation to express the number 385,500 to (a) one significant figure. (b) two…

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Q: A sample of an unknown metal has a mass of 35.4 g and a volume of 3.11 cm3. Calculate it's density

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Q: 203.77 miles/sec is converted to cm/nsec

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Q: Q.1. A student obtains the number 0.40076 on a balance. 4.00 x10 If this number actually has (3)…

A: Since you have posted multiple questions, we will solve only first question for you. If you want any…

Q: Convert 0.00260 centimeters into nanometers. C. d. Convert 23.1 °F into °C. Convert 48 miles per…

A: " Since you have asked more than 1 question in one question itself, only first three will be…

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.