Prefixes for si units Study guides, Class notes & Summaries

Compound - Matter which cannot be futher seperated by physical means but which can be seperated by chemical means Element - Cannot be seperated into a simpler substance by chemical means Theory - Unifying principle that explains a body of experimental observations Hypothesis - Defined as tentative explanantion for observations that guides experimentation Law - Term used for findings that are summarized based on a pattern or trend as a concise verbal or mathematical sta...

What does a measurement consist of? A number and a unit What are the frequent measurements used in Chem 120-1? Temperature, Mass, Time, Volume, and Density What are the three main units for Temperature? Fahrenheit (*F), Celsius (*C), and Kelvin (K) What temperature unit is the absolute temperature scale? The Kelvin unit What is the lowest temperature available in theory? 0 Kelvin (There are no negative units of Kelvin) What formula is used to convert Celsius to Kelvin? K= *C + 273...

Chemistry, 8e (Robinson/McMurry/Fay) Chapter 1 Chemical Tools: Experimentation and Measurement 1.1 Multiple-Choice Questions 1) A consistent explanation of known observations is called A) an experiment. B) a hypothesis. C) a prediction. D) a theory. Answer: D Diff: 1 Var: 1 Topic: Section 1.1 The Scientific Method: Nanoparticle Catalysts For Fuel Cells Learning Obj: LO 1.1 Identify the steps in the scientific method. Global Obj: G1 Demonstrate an understanding of the principles of s...

AFOQT Study Guide Questions with Correct Answers Types of analogies - Answer-synonym, antonym, action, function, size, degree, amount, part to whole, member to group, units of measurement, mathematical Types of numbers - Answer-natural: greater than 0 and has no decimal or fraction Whole: natural numbers and 0 Integer: positive/negative numbers and 0 Rational: can be represented as fraction or decimal , must terminate or resolve into repeating pattern Irrational: cannot be represented...

Chapter 1—The Foundations of Chemistry MULTIPLE CHOICE 1. Which of the following statements is incorrect? a. A body in motion possesses kinetic energy because of its motion. b. An object possesses potential energy because of its position or composition. c. Nuclear energy is an important kind of potential energy. d. Chemical reactions and physical changes that release energy to their surroundings are endothermic. e. The Law of Conservation of Matter and Energy states that the combined ...

1. 1.1 Physical quantities b)(1) make reasonable estimate of Fre- quency Of Audible Sound Wave: 2. 1.1 Physical quantities b)(2) make reasonable estimate of The Wavelength, in nm, of Ultraviolet Radia- tion: 3. 1.1 Physical quantities b)(3) make reasonable estimate of The Mass Of The Plastic 30cm Ruler: 4. 1.1 Physical quantities b)(4) make reasonable estimate of Den- sity Of Air At Atmospheric 5. 1.1 Physical quantities b)(5) make reasonable estimate...

What are the standard units of mass, length and time? - Answer Kilograms, metres and seconds What are the SI prefixes for 10^3, 10^6 and 10^9? - Answer kilo, mega, giga What are the SI prefixes for 10^-3, 10^-6 and 10^-9? - Answer milli, micro, nano What is work done? - Answer The energy transferred in moving something What is power? - Answer the rate at which work is done What happens to a gas when it is compressed? - Answer Particles get closer together Gas pressure...

BTEC Applied Science Unit 5 physicsWhat are the standard units of mass, length and time? - Correct answer-Kilograms, metres and seconds What are the SI prefixes for 10^3, 10^6 and 10^9? - Correct answer-kilo, mega, giga What are the SI prefixes for 10^-3, 10^-6 and 10^-9? - Correct answer-milli, micro, nano What is work done? - Correct answer-The energy transferred in moving something What is power? - Correct answer-the rate at which work is done What happens to a gas when it is compressed...

Select the correct conversion factor for each step in the following roadmap for a substance with a density of 1 g/mL. volume (L) ----> volume (mL) ----> mass (g) x 1000mL / 1L x 1g / 1mL Label each step in the Scientific Method and then place the step in the correct order 1. Observations: Natural phenomena and measured events; can be stated as a natural law if universally consistent. 2. Hypothesis: Tentative proposal that explains observations. 3. Experiment: Procedure to te...

ACS GEN CHEM 1 FINAL Exam 166 Questions with Verified Answers The physical material of the universe. It is anything that has mass and occupies space. - CORRECT ANSWER Matter is made up of relatively few elements. - CORRECT ANSWER Matter The smallest building block of matter. Smallest particle that retains the chemical property of the element (O, He, S). - CORRECT ANSWER Atom Each _______ is made of the same kind of atom - CORRECT ANSWER Element Combination of atoms held together i...