Empirical formula Study guides, Class notes & Summaries
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Straighterline Chemistry Final Exam Questions with Complete Solutions Latest
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Straighterline Chemistry Final Exam Questions with Complete Solutions Latest 
 
 
The 80Br- ion has 
 
Select one: 
a. 45 protons, 35 neutrons, 45 electrons. 
b. 35 protons, 45 neutrons, 34 electrons. 
c. 35 protons, 45 neutrons, 36 electrons. 
d. 45 protons, 35 neutrons, 46 electrons. 
e. 35 protons, 45 neutrons, 46 electrons. - Answer-e. 35 protons, 45 neutrons, 46 electrons. 
 
The formula for sodium sulfide is 
Select one: 
a. NaS 
b. K2S 
c. NaS2 
d. Na2S 
e. SeS - Answer-d. Na2S 
 
Which...
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Chem 103 Module 1 to 6 Exam with Verified answers (100 OUT OF 100) Portage learning (Latest Update)
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Chem 103 Module 1 to 6 Exam with Verified answers (100 OUT OF 100) Portage learning (Latest Update) 
 
 
MODULE 1 EXAM 
Question 1	 Click this link to access the Periodic Table. This may be helpful throughout the exam. 
1.	Convert 845.3 to exponential form and explain your answer. 
2.	Convert 3.21 x 10-5 to ordinary form and explain your answer. 
 
 
1.	Convert 845.3 = larger than 1 = positive exponent, move decimal 2 places 
= 8.453 x 102 
2.	Convert 3.21 x 10-5 = negative exponent = smalle...
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Straighterline Chemistry Final - deck 4 Questions with 100% Correct Answers | Latest Version 2024 | Expert Verified | Ace the Test
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The empirical formula is the simplest whole number ratio of atoms representing a 
chemical formula of a molecule. 
Select one: 
True 
False True 
Many compounds can be represented with the same empirical formula. 
Select one: 
True 
False False 
The molecular formula is a whole number multiple of the empirical formula. 
Select one:
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MCAT entrance exam all subjects combined questions & answers latest update
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m 
 
 
 
 
 
 
1.	Which of the following is the mRNA start codon in most cases? 
 
A.	UAA	B. AGU	C. AUG	D. UGA 
 
 
 
2.	Which of the types of RNA is the smallest? 
 
A.	mRNA	B. tRNA	C. rRNA	D. 
 
 
 
3.	Which of the following is not considered a pyrimidine? 
 
A.	C	B. T	C. U	D. G 
 
 
 
4.	Which of the following is paired correctly? 
 
A.	A-G	B. C-G	C. A-U	D. G-T 
 
 
 
5.	Which of the following characterizes a Western blot? 
 
A.	Antibody/protein hybridization	B. DNA/RNA combination	C. RNA ...
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CHEM 210 EXAMS 1-8 and FINAL EXAM LATEST UPDATED 2023/2024 | Complete Guide Graded A+
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CHEM 210 EXAMS 1-8 and FINAL EXAM LATEST. 
According to the Module, a compound with a molecular mass of 1,000 g/mol is 
considered a macromolecule. 
 
True 
Correct! 
 
False 
Question 2 
3 / 3 pts 
True or False: Biomolecules can have only two functional groups. 
 
True 
Correct! 
 
False 
Question 3 
3 / 3 pts 
True or False: The following functional group is an alcohol. 
 
True 
Correct! 
 
False 
Question 4 
3 / 3 pts 
True or False: In a eukaryotic cell, the organelles called peroxisomes se...
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IB Chemistry Topic 10 Questions and Answers Graded A+
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IB Chemistry Topic 10 Questions and 
 
Answers Graded A+ 
 
All ________ compounds contain carbon, but ____ ____ carbon containing compounds are 
_______. organic, not all, organic 
 
Catenation Carbon can form long chains and rings, linked by single, double, or triple bonds. 
 
Hydrocarbon composed of only C and H atoms, the simplest organic compounds 
 
Empirical Formula simplest whole number ratio of atoms in the compound 
 
Molecular formula shows the actual number and types of atoms (multip...
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Straighterline Chemistry Final- deck 4 Questions and Answers Already Passed
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Straighterline Chemistry Final- deck 4 
Questions and Answers Already Passed 
 
The empirical formula is the simplest whole number ratio of atoms representing a chemical 
formula of a molecule. 
 
Select one: 
 
True 
 
False True 
 
Many compounds can be represented with the same empirical formula. 
 
Select one: 
 
True 
 
False False 
 
The molecular formula is a whole number multiple of the empirical formula. 
 
Select one: 
 
True 
 
False True 
 
There is only one distinct empirical formul...
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PORTAGE LEARNING CHEM 210 exams 1-8 and final exam
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Portage Learning CHEM 210 exams 1-8 and final exam 
 
Question 1 
3 / 3 pts 
 
True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is considered a macromolecule. 
 
 
 
True Correct! 
False Question 2 
3 / 3 pts 
True or False: Biomolecules can have only two functional groups. 
 
True Correct! 
False Question 3 
3 / 3 pts 
 
True or False: The following functional group is an alcohol. 
 
 
 
 
 
True Correct! 
False Question 4 
3 / 3 pts 
 
True or False: In ...
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Edexcel iGCSE Chemistry, question and answer with rated solution
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Edexcel iGCSE Chemistry, question and answer with rated solution 
Experiment for Diffusion? 
1) HCl placed at one end of the test tube, ammonia solution at the other. 
2) Where they meet, a ring of Ammonium Chloride appears. 
3) The diagram shows that the ammonia is closer to the ring, showing that ammonia must have travelled faster, showing it's a lighter gas. 
 
 
 
Experiment for Dilution? 
1) Put a coloured substance in a solvent e.g food colouring in water. 
2) Over the time, the colour le...
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ISDS 361A FINAL EXAM 2024 WITH 100% CORRECT ANSWERS
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ISDS 361A FINAL EXAM 2024 WITH 100% CORRECT ANSWERS 
 
 
uses all the data (the most efficient) - correct answer Standard deviation 
 
Probability - correct answer likelihood that a particular event will occurlikelihood that the random variable takes values within a particular range. 
 
coefficient of variation formula - correct answer standard deviation/mean 
 
coefficient of variation - correct answer A measure of relative variability computed by dividing the standard deviation by the mean an...