Significant figures Study guides, Class notes & Summaries

If the number 0.5734 is rounded to three significant figures, what will be the new number? 0.573 Write the following in decimal form: 32%. 0.32 If the number 4.37768 is rounded to four significant figures, what will be the new number? 4.378 Write the following in percentage form: 0.15. 15% Solve the following equation using the rules for rounding numbers and significant figures: 0.087 - 0.012 = ? 0.075 If the digit to be dropped is less than 5, then the preceding digit stays the same....

General, Organic and Biological Chemistry, 4e (Smith) Chapter 1 Matter and Measurement 1) Which is NOT an example of a pure substance? A) Sugar B) Air C) Aluminum foil D) Water E) A block of dry ice Answer: B Difficulty: 1 Easy Topic: Study of Chemistry Bloom's: 1. Remember Subtopic: Classification and States of Matter Accessibility: Keyboard Navigation Chapter: 01 2) Which is an example of a physical change? A) The rusting of an iron nail B) The burning of propane in a gas grill C...

OCR 2023 GCE FURTHER MATHEMATICS A Y531/01: PURE CORE AS LEVEL QUESTION PAPER & MARK SCHEME (MERGED) You must have: • the Printed Answer Booklet • the Formulae Booklet for AS Level Further Mathematics A • a scientific or graphical calculator QP Oxford Cambridge and RSA Monday 15 May 2023 – Afternoon AS Level Further Mathematics A Y531/01 Pure Core Time allowed: 1 hour 15 minutes INSTRUCTIONS • Use black ink. You can use an HB pencil, but only for graphs and diagra...

CHEM 103 Module 1 to 6 Exam Questions and Answers (Portage Learning) Show the calculation of the mass of a 18.6 ml sample of freon with density of 1.49 g/ml 2. Show the calculation of the density of crude oil if 26.3 g occupies 30.5 ml. 1. M = D x V = 1.49 x 18.6 = 27.7 g 2. D = M / V = 26.3 / 30.5 = 0.862 g/ml Question 5 Click this link to access the Periodic Table. This may be helpful throughout the exam. 1. 3.0600 contains ? significant figures. 2. 0.0151 contains ? significant figu...

aqa A-level BIOLOGY Paper 3 (7402/3) June 2023 Question Paper. 1. Describe how stimulation of a Pacinian corpuscle produces a generator potential. 2. Use Figure 1 to describe what is meant by the all-or-nothing principle. 3. On Figure 1, from 0.6 ms to 4.0 ms, no new generator potential could be produced. What is this time period called?. 4. A student investigated the effect of different sugars on the rate of respiration in yeast. Yeast normally respires glucose.Figure 2 shows the method she us...

GCSE COMBINED SCIENCE: TRILOGY 8464/C/2F Chemistry Paper 2F Version: 1.0 Final *JUN238464C2F01* IB/M/Jun23/E5 8464/C/2F For Examiner’s Use Question Mark 1 2 3 4 5 6 TOTAL Tuesday 13 June 2023 Morning Time allowed: 1 hour 15 minutes Materials For this paper you must have: • a ruler • a scientific calculator • the periodic table (enclosed). Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at ...

Chapter 01 - Chemistry: The Study of Change Multiple Choice Questions 1. A tentative explanation for a set of observations that can be tested by further experimentation is referred to as A. a hypothesis. B. a law. C. a theory. D. none of the above. Bloom's Level: 2. Understand Difficulty: Easy Gradable: automatic Section: 01.03 Subtopic: Scientific Method Topic: Study of Chemistry 2. A concise verbal or mathematical statement of a relationship between phenomena that is always the sa...

CHEM 103 Module 1 to 6 Exam Questions and Answers (Portage Learning) Using the following information, do the conversions shown below, showing all work: 1 ft = 12 inches 1 pound = 16 oz 1 gallon = 4 quarts 1 mile = 5280 feet 1 ton = 2000 pounds 1 quart = 2 pints kilo (= 1000) milli (= 1/1000) centi (= 1/100) deci (= 1/10) 1. 24.6 grams = ? kg 2. 6.3 ft = ? inches 1. 24.6 grams x 1 kg / 1000 g = 0.0246 kg 2. 6.3 ft x 12 in / 1 ft = 75.6 inches please always use the correct units in your ...

Please check the examination details below before entering your candidate information Candidate surname Other names Centre Number Candidate Number Pearson Edexcel Level 3 GCE Thursday 22 June 2023 Afternoon (Time: 1 hour 30 minutes) Paper reference 9FM0/3A Total Marks Further Mathematics Advanced PAPER 3A: Further Pure Mathematics 1 You must have: Mathematical Formulae and Statistical Tables (Green), calculator Candidates may use any calculator permitted by Pearson regulations. Calcu...

Mark Scheme (Results) Summer 2023 Pearson Edexcel GCE In Statistics (9ST0) Paper 01: Data and ProbabilityEdexcel and BTEC Qualifications Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We provide a wide range of qualifications including academic, vocational, occupational and specific programmes for employers. For further information visit our qualifications websites at or . Alternatively, you can get in touch with us using the details on our con...