Question 5- Calculate the following and express your answer in scientific notation with the correct units and number of significant figures. (please show all of your work so I can understand going forward) 4.090×104 km __________________ 40,600 hr − 33,020 hr

Q: Evaluate the expression and report the answer to the proper number of significant figures. log (9.9…

A:

Q: Express the following in SI base units using scientific notation (e.g., 1.45 mm = 1.45 × 10-3 m):…

A: Given : 432 kg

Q: (1.00866 – 1.00716) d. 6.02205 x 1023 9.875 x 102 – 9.803 x 10? x 100 = |(100 is exact) 9.875 x 102…

A: According to the rule for significant digits in addition and subtraction, the number of significant…

Q: Carry out the following calculations, making sure that your answer has the correct number of…

A: Given that, 8.69 mL ÷ (15.3 mL - 8.94 mL) We have to calculate and result should have correct…

Q: Perform the following calculation and input the answer expressed to the correct number of…

A: Non zero digits are always significant.

Q: Gaseous methane (CH) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (CO, and…

A:

Q: A chemist prepares a solution of iron(III) bromide FeBr3  by measuring out  130.g  of iron(III)…

A: The molarity of a solution can be calculated as given below.

Q: Using significant figure rules, the answer of 213 miles / 4.2 hours is equal to which of the…

A: In Multiplication and Division, The LEAST number of significant figures in any number of the problem…

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: Perform the following calculations and express each answer to the correct number of significant…

A: The solution is as follows :

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A: To solve this problem we will calculate the given measurements .

Q: When 2.61×103 + 11.7 + 0.22 are added, the answer to the correct number of decimal places is…

A: Addition problemHere we have to add,2.61x10^3 + 11.7 + 0.22Add zeros after number to make it of…

Q: Convert the number 0.000127 to scientific notation, then enter the answer using a power of 10.

A: To convert the given number in scientific notation  Given number : 0.000127

Q: You measure the distance between to cities to be 42.0 miles. You need to send this data to Brazil…

A: Convert 42.0 miles to km ?

Q: Convert 2.85×10−5 LL to picoliters.   Express your answer with the appropriate units. Use the…

A: The three dimensional space occupied by a matter is known as volume. It is measured in terms of…

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

A:

Q: How many miles in 1.2 x 104 yards? Along with the conversions from your equation sheet, you will…

A: Number of miles in 1.2 x 104 yards =? 3 ft = 1 yard We know that, 1 yard = 0.000568182 mile

Q: The quadratic formula is used to solve for x in equations taking the form of a quadratic equation,…

A: The given quadratic equation is: 2x2+21x-7.1 =0 ......(1)

Q: Multiply or divide the following measurements. g 502.42 g 0.87 mL = %3D mL mol 0.934 L X 3.40 L…

A:

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.