12.00 - V4.32+4(0.29) (d) .x where 4 is an exact number = 1005.7 (6.022 x 10)(129.58 X 10) (e) x = 4.5 x 1016

Q: Convert 7500 ft to km Write your answer on the blank below, with the correct number of significant…

A:

Q: 5. The following are three different scales. Determine the correct reading indicated by the arrow.…

A: Accuracy is the term used for the measurements taken near to the original value. Precision is the…

Q: Part A 3.10 cm x 0.9 cm Express your answer to one significant figure and include the appropriate…

A: If you have any questions let me know in comment box thankyou for your question.

Q: 56. Round the number on the left to the number of significant figures indicated by the example in…

A: Significant figures of a number are those which are absolutely necessary to explain the numbers…

Q: Measure the diameter of the circle using Ruler A and Ruler B.Given that the actual diameter of the…

A: Given : Ruler A and Ruler B and some statements are given .  To find : To match the statements…

Q: Ban as Foster is an example of a dessert that is flambéed. One chef claims their Bananas Foster…

A:

Q: Ammonia (NH,) chemically reacts with oxygen gas (o,) to produce nitric oxide (NO) and water (H,0).…

A: Given data is as follows: The mass of ammonia given = 1.2 g The mass of oxygen gas consumed = ?

Q: I have to have the correct number of significant figures

A:

Q: All nonzero digits are significant. State a rule that tells which zeros are significant.

A: Significant figures can be defined as the total number of digits that are present in a number…

Q: Calculate the following and express your answer in scientific notation with the correct units and…

A: The significant figures of a number written in positional notation are digits that carry meaningful…

Q: Rewrite this number in nonscientific notation, to the correct number of significant figures. 5.15 x…

A: The nonscientific notation of the above number is given below

Q: Determine the precision of the graduated cylinders, and get the volume with the right significant…

A: Significant figures are the digits of numbers that are the accurate and more reliable value of data.…

Q: 1. Evaluate the following and give the answer in the correct number of significant figures. d. Q = 1…

A:

Q: hange the following measurement to the appropriate SI unit. The final unit required is shown to the…

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.

Q: Please provide the correct number of significant digits. (aleks is saying significant figures is…

A: Here, in a question tabular data is given. We need to find the missing values. Ka = Dissociation…

Q: Measured values are written to the correct number of significant figures O to match the significant…

A: We will answer the above question by using basic concepts of chemistry.

Q: When 0.0005760 is written in proper scientific notation with the correct number of significant…

A: Rules for determining significant figures,All non-zero digits are significantThe zeros placed to the…

Q: 4. Express in scientific notation. Include all significant figures. 0.000000738592

A: Answer: When we represent a number in scientific notation, there are two components of it, one is…

Q: Calculate the answer to the following problem. Your answer should be rounded to the correct…

A: Significant figures refer to the number of digits that are involved in the determination of the…

Q: When subtracting or adding two numbers in scientific notation, why do the exponents need to be the…

A: To find: The reason for exponent to be same when adding or subtracting two numbers in scientific…

Q: When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 16.8 g of carbon…

A: Balanced chemical equation for the reaction is given below.

Q: for this question, what would the correct number of significant figures be?

A: Concentration of KOH = 0.626 M The mas of MOBS=  5.00 g  pKa=7.48 and formula mass is 223.29 g/mol)…

Q: How many moles of water were lost if the amount of water lost was 0.378 grams?  Do not include units…

A: The moles of water that were lost if the amount of water lost was 0.378 grams are to be calculated.

Q: Convert 4.30x105. ng dg to Express your answer in proper scientific notation. In m mm3

A:

Q: Carry out each calculation and report the answer using the proper number of significant figures. d.…

A: -> In addition and subtraction answer contains lowest number of decimal places. -> In…

Q: Convert 32.898lbs to kg. Use the correct significant figures.

A: Answer:This question is based on unit conversion where given physical quantity needs to be converted…

Q: This question is about expressing numbers in standard form. a Express the following numbers in…

A: The numbers given are,

Q: b Write out the following numbers in ordinary form. i 2.01 x 103 i ii 5.2 x 10-2 iii 8.41 x 10² iv…

A: In ordinary form 10x and 10-x is not represented instead of it if it is 10x the decimal is increase…

Q: I dont quite understand the significant figures. Need some examples

A: Rules for Determination of Significant Figures:[i] All non-zero digits are significant.For example:…

Q: Ammonia chemically reacts with oxygen gas to produce nitric oxide and water. What mass of ammonia is…

A: Moles of oxygen can be calculated as:

Q: Express the answers to the following operations with the proper number of significant figures. A.…

A: In addition and subtraction, the answer should be in the significant figures that are minimum for…

Q: D Question 4 Consider an object that is in the shape of a cube with a mass of 45.8 grams. If the…

A: Answer:Density of an object is the ratio of its mass and volume as shown below:Here:

Q: Subtraction - express all answers in the correct significant figures - be sure to include units…

A: Significant Figures -  They indicate the reliability of a number that tells us how many digits are…

Q: Convert 70.2 miles/hour to m/s

A: In unit conversion one unit is changed to another unit by multiplicative conversion factor .

Q: Select the single most accurate method for measuring the volume of an irregularly shaped unknown…

A: The density of an object is the mass of the object present per unit of the volume. The units of…

Q: When adding or subtracting measured quantities, what determines the number of significant figures in…

A: The result of an addition or subtraction should be reported to the same number of decimal places as…

Q: [Review Topics] [References] CHEMWORK Change the following measurement to the appropriate SI unit.…

A:

Q: The number 158.70 in normal scientific notation, showing proper significant figures is:

A: Given number= 158.70 In scientific notation, Decimal will be placed after first number , so

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.