which number is most precise and accurate among the following numbers? a/ 25, b/25.00, c/2.5 X10, d/ 0.25 X 1010

Q: A.1.36 × 10% B. 1.36 x 10 Q3. Precision refers to how a measured number is close to A. Other…

A: Precision is a method to check the validity of the measured values of an experiment.

Q: Complete the follwing table.  Decimal notation           scientific notation 300,000,000 0.00091…

A: In scientific notation method when number is too large or too small and it is expressed in decimal…

Q: 4.0 x 10^-10 m to nm

A: 1 m=109nmor  1nm=10-9mGiven:- 4.0×10-10m

Q: 3. Perform the following calculation and report the answer to the proper numbers of significant…

A: a) 14.5 + 0.023 = = 14.523         b) 13.265 -2.065 = = 11.2

Q: Complete the table below relating the values. Each value is =0, >0, or <0

A: We have knowledge about two equations: One is Nernst Equation according to this, Second is…

Q: In which one of the following measured numbers are all of the zeros significant?   a. 60800   b.…

A: Any zeros between two significant digit are significant and A final zero or trailing zeros in the…

Q: Q1. The correct conversion expression between degrees °C to K is? A. T(K)=t(°C) + 273.15 C. T(K)=…

A: Temperature T in Kelvin (K) is equal to the temperature T in degrees Celsius (°C)  + 273.15.

Q: 144X 6= The recommended value for vitamin C is 65.0 mg per day. There are 7.0 mg of vitamin C m…

A: Given: Mass of vitamin C required per day = 65.0 mg. Concentration of vitamin C in grapefruit = 7.0…

Q: Indicate the number of significant figures in each number. If thenumber is an exact number, indicate…

A: a) 305,435,087 (2008 U.S. population) - unlimited number of significant figures This is the…

Q: g/cm')? 2. Three students use a meterstick to measure a length of wire. One student records a…

A: As per our guidelines, I can only answer first question because you have posted multiple questions.…

Q: Use scientific notation to express each quantity with only base units: 35 μL, 225 Mm, 133 Tg, 1.5cg

A:

Q: Write 0.00293 in scientific notation with two significant digits. 2.9 x 10-3 2.9 x 103 2.93 x 10-3…

A: In scientific notation, we write a number with only one digit before the decimal. 10 raised to power…

Q: An object measuring 25.0 inches will have a length of___centimeters round your answer to the correct…

A:

Q: Which number is most precise and accurate among the following? A/ 5.00 B/0.005 C/5.0

A: Precision in a measurement is defined as how close are two or three measurement and it is not…

Q: (OH] = 3.1x10-10 M Express your answer using two significant figures. ? [H3O*] = M %3D

A: Given  [ OH- ]      =  3.1 × 10-10 M  [ H3O+ ]    = ?

Q: A cube of plastic 1.3x10^-5 km on a side has a mass of 2.1 g. What is its density in g/cm^3

A: Given: Side of Cube = 1.3×10-5 km Mass of cube = 2.1 g

Q: The density of lead is 11.0g/cc at 4 degrees Celsius. What is the density of lead in pounds per…

A: We know that1 Pound lb=453.59 g1 foot=30.48 cm⇒ 1 g=1453.5 glb⇒1 cm=130.48ft

Q: Carry out each calculation and report the answer according to the correct number of significant…

A: Carry out each calculation and report the answer according to the correct number of significant…

Q: A thermometer is taken from an inside room to the outside, where the air temperature is 10° F. After…

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

Q: Decide which of the earlier measurements was the most accurate, and which was the most precise.

A: Accuracy determines that how close a measurement to the accepted value or true value. Precision is…

Q: Convert the following numbers from Scientific Notation to Regular Notation. a. 5.7x106®

A:

Q: Determine whether the zeros in each number are significant(A) 2050(B) 9.00 x 10^2(C) 0.0530(D)…

A: Dear student, you have not mentioned the parts for which you need answer. I am answering the first…

Q: How many significant figures in each term : 0.001048 and 3032 ?   a. 7 and 7 b. 6 and 6 c. 4 and 7…

A: Significant number is very important to represent the result. Significant number of given terms is…

Q: Perform the following calculations and report the answer with the correct number of significant…

A: Addition and subtraction Here, in this case we round the answer to the same number of decimal places…

Q: Carry out the following conversions: (a) 1.42 lightyears to miles (a light-year is an astronomical…

A: a) We need to convert a distance from light-year to miles.

Q: The density of bromine is 3.1g/cm^3. What is the mass of 17.20cm^3 of bromine with the correct…

A:

Q: Perform the following calculations and be sure to report your answer using correct number of…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Answer the expression below with the appropriate number of significant figures. 2.4 x 10-4 + 3.1 x…

A: Significant figures are used to express the result in a more precise manner

Q: Which of the following numbers have four significant figures?  A. 12045 B. 5500 C. 5500. D. 0.010210

A: The question is based on the concept of significant figures. we have to identify which of the given…

Q: 6. Calculate, giving the correct number of significant figures: (39.45)(16.008) 3.1416+ 2.323 (22.4…

A:

Q: How many significant figures do the following quantities have? a. 6.420 x 106 mm b. 0.00043210 kg…

A:

Q: A chemistry student needs 35.0g of acetone for an experiment. By consulting the CRC Handbook of…

A: Density of a particular substance is the compactness of atoms present in it. It represents the…

Q: milk of magnesia with [H3O+] = 2.0 × 10-M X Express your answer using two significant figures.

A: Given data : [H3O+] = 2.0 × 10-9 M

Q: Part A Use scientific notation to express each quantity with only the base units (i.e., with no…

A:

Q: Answering to the correct number of significant figures, what is 5.80 x 120? A) 696 B) 700 C) 7.0 x…

A: The given equation is, 5.80 × 120 = 696

Q: Q1. The correct conversion expression between degrees °C to K is? A. T(K)=t(°C) + 273.15 C. T(K)=…

A: Given,  The combination of formula/name is correct for the compound is:

Q: If gasoline costs $3.90 per gallon, what was the fuel cost for this trip?

A: Yes, conceptually your answer and colculations are correct. But here from the economy,final answer…

Q: CONVERT DEGREES CELSIUS TO FAHRENHEIT 1- Fórmula: °F = (°C · 1.8) + 32 To calculate how many degrees…

A: here the calculation of temperature given,  The temperature has three units, Fahrenheit, Celsius,…

Q: Write each of the following numbers in standard scientific notation. a. 1/1033 b. 1/105 c. 1/10-7 d.…

A:

Q: How many significant figures should be retained in the result of the following calculation? 12.00000…

A: The given expression has been simplified below.

Q: f) 0.0000010 1x10^-6 h) 7.00

A:

Q: The product of 2.35 x 10 and 6.435 x 103 (multiplied together) to the correct number of significant…

A: The given values are - 2.35×105  6.435×10-3   On multiplying above values - Thus, after rounding it…

Q: 1) The number with the most significant zeros is A) 250000001 B) 0.00002510 C) 2.5100000 D)…

A: solution

Q: Carry out each calculation and give the answer using the proper number of signifi cant fi gures. a.…

A: We are authorized to answer three subparts at a time since you have not mentioned which part you are…

Q: (0.714000) / (2.80 x 10^-15)     (This is 10 to the  -15th power) Espress in scientific notation…

A: Significant figures of a numbe are digits in the number that are necessary to indicate the quantity…

Q: Which of the following numbers conforms to the scientific notation conventions? A. 0.123 x 109 B.…

A: In scientific notation, the number is written as a decimal with only 1 digit before decimal (which…

Q: Write the numbers in scientific notation. 1099 =      x 10^a                        a=     0.00095=…

A: Write the numbers in scientific notation-

Q: 1.a What temperature in Kelvin is -145°C   (b)What temp in Celsius is 91 °F?     (c) Which of the…

A: 1. The given temperature is = -145oC The value of this temperature in kelvin is =?

Q: For Questions #6 through #14, perform all of the following for each question: 1. calculate the…

A:

Q: 23. 2 x 75.33333 = ____________ (significant figures).   A. 100   B. 200   C. 150.6   D.…

A:

Q: Decide whether each proposed multiplication or division of measurements is possible. If it is…

A: Introduction :- We can always multiply or divide measurements having same unit or different units.…

Q: An infant acetaminophen suspension contains 80.0mg/0.80 mL suspension. The recommended dose is 15…

A: The weight of infant in kg:

Q: A chemistry student needs 90.0 mL of pentane for an experiment. The student discovers the density of…

A:

Q: 16.0 x10-5 3. 4.0 x 10-5 K[0.200]m[0.100]" K(0.100]m[0.100]n m=?

A: Given

Q: metal has a density of 3.47 g/mL. What is the volume in mL of 15.0 grams of this metal?

A: Since you have posted multiple questions as per guidelines we can answer only one per session . If…

Q: 9. Express the number 0.000053 in scientific notation. A) 5.3×10² B) 5.3x10³ C) 5.3×10+ D) 5.3x10-5…

A: 9. We have to predict the number in scientific notation. 10. We have to predict the number of Sig…

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.