Conversions: follow the same format in the image provided and answers must be in scientific notation.  a. 9.90 cm to pm b. 7.50 cm to km

Q: Perform the following calculation. Show the answer in scientific notation. Round the coefficient to…

A: Option C. 2.97×103 is correct Given that,  (8.9 x 109 ) / ( 3 x 106 ) = ??

Q: For the electrochemical cell 2 AI(s) + 3 Mn2*(aq) – 2 Al3*(aq) + 3 Mn(s) (E° = 0.48 V, [A]³*] = 1.0…

A:

Q: Select the correct answer. The length of a spring when it’s at rest is measured to be 0.56…

A: Significant figure represent all the digits of a number that are significant with respect to…

Q: 2. Significant Figures Record the number of significant figures in each of the following numbers. a.…

A: Significant figures in a number are the digits which are meaningful in terms of precision.

Q: 1.Add 43.8 lbs and 56.8923 lbs. write the correct significant figures. 2. Convert the from 1 answer…

A: 1) we have given two weights 43.8 lbs and 56.8923 lbs Significant digits in 43.8 lbs is 3 and in…

Q: The Boston Marathon is the oldest annual foot race, in which those that finish complete a distance…

A: We are given  a marathon of distance 26 miles, 385 yards. We need to convert this distance into…

Q: 11. Write each of the following numbers in standard sci- entific notation. a. 97,820 d. 0.0003914 b.…

A: Note : Dear student since you have posted multiple questions, we will solve only first question for…

Q: Measure the line and answer the following. 0 cm 1 2 3 4 a. What is your measurement? 5 6 110 TV 7 8…

A:

Q: I need help with these question please

A: 1 inch = 2.54 cm 1 cm = 10 mm 1 mm = 10-3 m

Q: A racetrack measures 1.0000 x 103 meters. A racecar completes a lap of this track in 20.4 seconds.…

A: Given: Distance = 1.0000×103 meters Time = 20.4 seconds

Q: #4

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: Express the following numbers in scientific notation.a. 34,500            d. 789b. 2665…

A:

Q: 6. Convert 6.015km to the following units. Round your answer to 4 sig. a. meters b. miles c.…

A: Given: measurement = 6.015 km a) since 1 km = 1000 m => 6.015 km will be = (1000 m / 1 km) *…

Q: 6. Use dimensional analysis to convert the following values. Remember this is a calculation work…

A: Given, 250 days ; 15.45 lbs ; 75.0 mm We know that, 1 day = 24 hours ; 1 hour = 60 minutes ; 1…

Q: Determine the number of significant figures in each measurement. Then, choose the representation of…

A: Digits that shows contribution for the accuracy in value we count it as significant figure. There…

Q: How much volume (in cm^3) is gained by the person

A: Density = mass/volume  So, volume = mass/density

Q: Round each number to four significant figures, and write the answer in scientific notation.a.…

A: The quantities which come across during the scientific studies are named as physical quantities. The…

Q: 908 oz to 12.8 L tc 125 mL 2.89 gal e. 4.48 lb to F. 550 mL Ise the foll a. b. c. d.

A: a) 908 oz b) 12.8 Lc) 125  mLd) 2.89 gale) 4.48 lbf) 550 mL

Q: Length of foil Width of foil 13.10 cm 9.50 cm 9.745 g Mass of foil Use the data in the table to…

A: Given the mass of foil, m = 9.745 g density of foil, d = 2.6989 g/mL Conversion factors: 2.6989 g =…

Q: Round the following to three sig figs.  Express your answers as either whole or decimal values; do…

A: Significant Figures: Defined as  by saying that  the numbers which gives meaningful contribution to…

Q: Q18. Convert 1.400x 10-8 liters to nanoliters and express the answer in fixed notation using the…

A: The conversion of quantity from one unit system to another unit system is known as unit conversion.…

Q: Review the rules for significant figures in calculations. Perform the following mathematical…

A: Significant figures are used for expressing the uncertainty in the experiment or in the calculated…

Q: Choose the answer with the correct number of significant figures.  An unknown sample of…

A: The digits/numerals part of any number contributing essentially in its measurement/calculation is…

Q: 1.Express the following numbers in scientific notation. a) 234000 b) 0.009190 c) 19500 d) 0.0124

A: Scientific notation for :  a) 234000 = ?  b) 0.009190 = ?  c) 19500 = ?  d) 0.0124 = ?

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.