Sig fig Study guides, Class notes & Summaries
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CWEA Lab Analyst Grade 1, questions and answers with rated solutions
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CWEA Lab Analyst Grade 1, questions and answers with rated solutions 
Celcius 
(F-32)5/9 
 
 
 
HPC media water bath 
45`C, 3hr 
 
 
 
Precision 
a measure of how close a series of measurements are to one another 
 
 
 
Accuracy 
how close a measurement is to the true value 
 
 
 
Electrical Fire 
unplug & sodium bicarbonate 
 
 
 
analytical balance 
a device for determining mass that gives highly accurate measurements 
 
 
 
top loading balance 
used to determine mass; not as precise as an ana...
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PRAXIS CRAM - BIOLOGY 5236 LATEST UPDATE GRADED A+
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PRAXIS CRAM - BIOLOGY 5236 LATEST 
 
UPDATE GRADED A+ 
 
Pros of stem cell research Curing genetic diseases 
Growing skin for burn victims 
Growing new organs 
 
Cons of stem cell research Harvesting embryonic stem cells kills the embryo, what 
constitutes a viable embryo? 
 
Cons of genetically modified foods Man should not interfere, allergens, modifications not 
contained-could pass in to wild species 
 
Cons of cloning - reduced gene pool 
- animals less healthy 
- worries that humans could ...
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IRSC Chem test 1 questions & answers 2024/2025
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IRSC Chem test 1 questions & answers 2024/2025 
 
 
All digits 1-9 are - ANSWERSsignificant 
 
leading zeros are - ANSWERSnot significant 
 
Captive zeros (0's between digits) are - ANSWERSsignificant 
 
trailing 0's - ANSWERSare significant at the end of a # only if the # contains a decimal point 
 
.03070 How many Sig fig ? - ANSWERS4 
 
500 
how many sig figs? - ANSWERS1 
 
500.01 sig fig ? - ANSWERS4 
 
1 meter = ____ mm - ANSWERS1000 mm 
 
1 meter = ____ centimeters - ANSWERS100 centimete...
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Chem 111 Study Guide Questions With Complete Solutions
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sig fig zeros Correct Answer-1. zeros at beginning NOT signif 
2. zeros between ARE SIGNIF 
3. zeros at end of number are signif if number contains a decimal point 
 
3.489 x (5.67-2.3) Correct Answer-3.489 x 3.(3)7 
11.75793 
12 
 
matter Correct Answer-composed of mass and must occupy space 
 
scales of matter Correct Answer-macroscopic, microscopic, particulate. scientists think on a particulate scale, observe macroscopically 
 
states of matter Correct Answer-1. change from solid to liquid t...
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A level Physics Edexcel Paper 3 (EXAM) ELABORATION
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g by free-fall method 
 ANSWER : - Drop object using electromagnet 
- Measure time and distance 
- Use suvat to get g 
mnemonic for exam questions 
 ANSWER : Syllables of experiment 
e = equation 
p = procedures 
i = improvements 
m = math analysis 
g by free-fall light gate vs stopwatch 
 ANSWER : light gate prevents human reaction time random errors stop watches rely on human reaction 
time 
Light gates will have a smaller percentage uncertainty 
g by free-fall problems with air resistance 
 A...
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Accel Chemistry Final Exam 2023 with 100% correct answers
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pico nano micro milli centi deci deka hecta kilo mega giga - correct answer List the metric unit prefixes from smallest to biggest 
 
1 - correct answer 1 ml = __ cm3 
 
Accuracy - correct answer describes a set of values within 1% of the predicted value 
 
Precision - correct answer describes a set of values that have all of the same numbers up until the last sig fig 
 
Percent error - correct answer Measured - Accepted / Accepted 
 
Boiling point 
Freezing point 
Solubility - correct...
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ALEKS Modules 1-7 (A+ Guaranteed)
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Fahrenheit Equation correct answers Tf=(Tc x 9℉/5℃) + 32℉ 
 
Celsius Equation correct answers Tc= 5℃/9℉ (Tf - 32℉) 
 
More Equations correct answers Ep=h x v 
c=weird symbol x v 
 
Average Velocity of a Gas Particle correct answers Vrms = square root (3RT/MM) 
 
R= gas law constant 
T= temperature 
MM= molar mass of gas particles 
 
Base for log correct answers It is 10 
10^5 
log10(100,000)=5 
 
Base for ln correct answers e 
Euler's number 
 
Rules for Counting Significant Figure...
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CHEM 207 REVIEW EXAMS QUESTIONS AND ANSWERS
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CHEM 207 
REVIEW EXAMS QUESTIONS AND ANSWERS 
 
Practice questions for the exam with solutions. For you to do well on the exam, please work on the questions before looking at the solutions. If you find an error, let me know so I can let everyone know. REMEMBER THE EXAM IS ON Monday, Sept 28th on Top Hat. The exam will have 20 questions and only one hour. Studying the lecture ppts and lecture questions would also be helpful. 
Lecture 1A questions: Density and stat analysis, Q and T tables, % Tole...
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Chem 120 Exam 1| 64 Questions| With Complete Solutions
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SI unit for Temperature correct answer: C 
 
F correct answer: (9/5 C) + 32 
 
C correct answer: 5/9 (F -32) 
 
K correct answer: C+273.15 
 
density correct answer: mass/volume 
 
1 mL correct answer: =1cm^3 = 1cc 
 
percent error correct answer: difference from known value/known value x 100 
 
sig fig for Addition/Subtraction correct answer: answer has the same number of decimal places as the factor with the least amount of decimal places 
 
sig fig rules for multiplication/ division c...
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General Chemistry Exam 1 Review With 100% Correct Answers 2023
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General Chemistry Exam 1 Review With 100% Correct Answers 2023 
Chemical properties 
Chemical properties describe the characteristic ability of a substance to react to form new substances. 
 
 
 
Physical properties 
Physical properties are characteristics that can be measured without changing the composition of the sample under study 
 
 
 
Elements 
contain only one type of atom 
 
 
 
Mixtures 
contain more than one type of molecule 
 
 
 
Compounds 
Contain more than one type of atom, but on...