Please make they are corect significant

Q: Which n 15. Carry out the following mathematical ope significant figures. a) 116.3 ст —0.33 ст…

A: 15. Given, a) 116.3 cm - 0.33 cm = b) 137.8 mL + 25 mL =  c) 21 mg + 13.8 mg + 130.36 mg =

Q: Hi I need help with this question please -Of the solids are not dry when added to the graduated…

A: Calculated density will be larger because solids are not dry then Mass of the solid increases and…

Q: a. Estimate the reading from the following ruler to the appropriate precision a. b. Round…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: Which of the following statements is true about the reaction described in the energy diagram below?…

A: GIVEN:-

Q: 29. When a measuring scale is used properly to the limit of preci- sion, the last significant digit…

A: The value which is close the measurement to each other is known as precision.

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: If the volume of a cube was measured in a graduated cylinder to be 5.264 mL. Which digit would have…

A: As we know that ;  With a 50 mL graduated cylinder, we can read and record the volume to the nearest…

Q: four imegular solid is made of lead (Pb) which has a real density (theoretical yield) of 11.34 g/ml.…

A:

Q: 19. 20. 21. 65 25 85 60 20 80

A: The reading given are,

Q: Round 329.2258 to 2 significant digits

A: Significant figures are meaningful digits which are known with certainty. There are certain rules…

Q: Answers must have the correct number of significant figures for full credit. 1. A student in…

A:

Q: EMENT AND MATTER Counting significant digits when measurements are added or... Add or subtract the…

A:

Q: 5. When do zeros count as significant digits, and when don’tthey count?

A: The significance of zeros in a mathematical value has to be given.

Q: The proton has &adius of approximately 1.0 x 10-13 cm and a mass of 1.7 x 10-24 g. Part A Determine…

A: density of a body is defined as mass divided by  total volume .

Q: Give the number of significant figures for 3.8 m. Express your answer as an integer.

A: Significant figures are the number that is used to denote the meaningful digits with respect to…

Q: A sample of mercury has a mass of 581.0 lb and a volume of 0.686 ft'. What is its specific gravity?…

A: In the given question we have to define the unit of specific gravity, we know that, Density = mass /…

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: ow would the accuracy of your determined Kog change if all of your volume measurements were made…

A: A graduated pipette is more accurate than a graduated cylinder. An uncertainity is associated with…

Q: Part C milk, [OH ]= 3.1 x 10-7 M Express your answer using two significant figures. ? ..... [H3O*] =…

A: Part C: [H3O+] = 3.2 × 10-6 M Part D: [H3O+] = 3.4 × 10-10 M

Q: Given W=0.003793258±0.000074295, write Win scientific notation with the correct number of…

A: The objective of the question is to write the given number in scientific notation with the correct…

Q: What is The Real Rule for Significant Figures? The Real Rule for Significant Figures: A. All the…

A: Soln Here both options A and B are true in case of rules for defining significant figures. So option…

Q: Convert 2.0 decades to milliseconds. Use 1 year = 365.25 days. (2 sig fig applies)

A:

Q: CHEMWORK Change the following measurement to the appropriate SI unit. The final unit required is…

A:

Q: I can only have 2 significant digits make sure you are reading the full question.

A: The calculation is correct. The answer is to be rounded to 2 significant digits

Q: * 00 Air DD F7 F8 & * T

A: This question is related to conversion of units.

Q: 55.09 AL Express your answer in moles to three significant Agures.

A: To calculate moles of Al in given mass , we would use molar mass of Al.

Q: The density of mercury is 13.6 g/cm3. The mass of 38.0 cm3 of mercury is ________ g.

A: According to the rules for determining the number of significant digits in answer :  The result of…

Q: The number 24.03687 rounded to significant figures is________

A: The number 24.03687 rounded to significant figures is?

Q: Express the number 0.002316 using scientific notation. Digits to the right of the underlined digit…

A: The given number is 0.002316 and we have to write scientific notation of this number.

Q: 1.7464 x 10° ms Express your answer in scientific notation to three significant figures. | ν ΑΣφ ?…

A: Given that : We have to express our answer in scientific notation to three significant figures for…

Q: number with the lewest sighilicant igures. ecognized to be uncertain. We call nificant figures.…

A: The question is based on the concept of significant figures. we have to follow the rules of…

Q: Super fine 40-gauge copper wire has a diameter of only 0.080 mm and weighs only 44,5 g/km. Suppose a…

A: The weight of wire used to wind the magnet = 603 g. The weight of the 40- gauge wire = 44.5 g/km.…

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

A:

Q: Express 34670000.0003 N in scientific notation

A: Scientific notation=> It is a way to express very large number or very small number. RULES:-  1)…

Q: 1. Identify the type of compound for each of the following. If it is an ionic compound, indicate if…

A: Molecular compound: These are compounds that consist of two or more non-metals elements in a…

Q: How do you get y=40000x+4000

A:

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

A: Question is about the measurements. We have to calculate the multiplication value and division value…

Q: You decide that it is too tedious to kneel or adjust your eye level when trying to read the volume…

A: Random error causes one measurement  to differ slightly from the next. it comes from unpredictable…

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

A: Unit conversion = ?

Q: A 5.0 ft person weighs 172 lb. Express this person's height in meters and weight in kilograms. (1…

A:

Q: 1 answer pls

A: Significant figures of a number that contribute to the degree of accuracy of the value.

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: H 3000 B 2000 HO 1500 mpm 1000

A: Given Compounds:To Identify the structure (from the list of given structures) that corresponds to…

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

A: For a multiplication and division purpose, we keep the least significant figures in the final answer…

Q: . A box is 252.50 cm wide, 18.25 cm tall and 6.50 cm deep. Calculate the volume of the box in…

A: Given=> A box having:-       Length (L) or tall=>18.25 cm         Width (W)=>252.50 cm…

Q: An empty 8 ounces graduated cup weigh 260 grams and filled with water to capacity and has computed…

A: We have to calculate the weight of full cup.

Q: substances. Substance A has a density of 1 g/mL and Substance B has a density 81 3 g/mL. a) What…

A: Let us get to the problem with the help of easy formula and efficient explanation. Weight (Mass)=…

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.