Water properties Study guides, Class notes & Summaries
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CHEM 120 Exam #1 Questions With Complete Solutions
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define matter correct answer: anything that has mass and takes up space 
 
what is not considered matter? correct answer: light, heat, electricity 
 
definite shape, definite volume correct answer: solid 
 
indefinite shape, definite volume correct answer: liquid 
 
indefinite shape, indefinite volume correct answer: gas 
 
pure substance correct answer: one substance; definite and constant composition; can't be separated into 2 kinds of matter by physical means; single kind of matter 
 
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CSU LIFE 102 FINAL EXAM QUESTIONS & ANSWERS SOLVED 100% CORRECT!
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Phosphorus has an atomic number of 15. This tells us that... - Answer-there must be 15 protons 
True or False: covalent bonds are stronger than ionic and hydrogen bonds because atoms that are joined 
with covalent bonds share electrons - Answer-True 
An e- in a hydrogen atom exists in the first valence shell. The valence e- of Aluminum exist in the 3rd 
shell. Which valence shell e- have higher potential energy and why? - Answer-the valence e- of 
aluminum, bc higher e- shells have higher energy...
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NACE CIP 1 Exam Questions With Verified Answers New Update 2023 | 2024 (Graded A+)
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NACE CIP 1 CBT Exam Questions With Verified Answers New Update 2023 | 2024 (Graded A+) How is the process of steel corrosion ALWAYS described? - Answer - electrochemical 
Based on the galvanic series presented in the NACE CIP Level 1 Manual, which three 
can be used effectively as galvanic anodes for carbon steel? - Answer - zinc, aluminum, 
magnesium 
A decrease in temperature will generally cause the corrosion rate to _____ - Answer - 
decrease 
The electrolyte is a medium which carries the fo...
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BCH4024 Exam 1 Purich Questions & Answers 2023/2024
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BCH4024 Exam 1 Purich Questions & Answers 2023/2024 
 
Basic Structure of water - ANSWER--large dipole moment 
-very polar that interactions between H2O molecules are strong--high heat capacity 
-liquid water=H-bonds are relentlessly made and broken; thus a flickering collection of W5 structures, with extremely little W1 
-each water molecule can form up to 4 H-bonds 
-liquid water has 3.4 H-bonds on average 
-ice has 4 H-bonds 
 
H-bond - ANSWER-stable interaction occurring when 2 EN atoms shar...
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BIOL 1P91 Final Exam Questions And Verified Solutions
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BIOL 1P91 Final Exam Questions And Verified Solutions 
What are the 3 general components that make up an atom? - ANS Protons 
Neutrons 
Electrons 
 
The sum of the atomic number and the number of neutrons is: - ANS A (the atomic number) 
Mass Number 
 
Which of the following is/ are a polar bond? 
A) O-H bond in water * 
B) C-O in CO2 
C) N-N in N2 
D) all of the above 
E) two of the above - ANS A) O-H bond in water 
 
A substance dissolvable in oil is said to be: - ANS Hydrophobic...
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MMBio 221 Final Exam Questions With 100% Verified Answers!!
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Virulence: mycolic acid in cell wall causes slow growth, protection from lysis once bacteria are 
phagocytized, capacity for intracellular growth, resistance to Gram-staining, detergents, many 
antimicrobial drugs, and dessication - Answer-Mycobacterium Tuberculosis 
Unique properties: grows very slowly, can live within macrophages, tuberculin skin test--positive when 
red swelling appears, BCG vaccine is used in countries w/ lots of TB cases, effective on 80% of children 
and 20-50% of adults, ...
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Chemistry Review-Water properties of water Questions and Answers Graded A+
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Chemistry Review-Water properties of water Questions and Answers Graded A+ 
Which statement must be mentioned in explaining why amphipathic molecules line up at a water surface? Polar groups attract one another. 
Dissolving is best described as mingling of molecules and/or ions. 
Water is a source of ______________ for chemical reactions in cells. Oxygen and Hydrogen. 
Which statement is true of water's tensile strength? (a) It results from hydrogen bonding. (b) It helps to pull water through p...
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Texas Department of Agriculture Pesticide Applicator's study guide- Answered 100% Correct
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Define IPM - ANSWER-1. a pest population management system that anticipates and prevents pests from causing damage. 
 
2. an ecological approach to pest control. 
 
Components of IPM - ANSWER-1. Pest identification 
2. Monitoring 
3. Use of natural enemies (biological control) 
4. Pest-resistant plants 
5. Cultural and structural changes 
6. Judicious use of least toxic pesticides 
 
Intent of IPM - ANSWER-To use tactics that include pesticide alternatives that reduce the total amount of pestici...
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LEG2601 Assignment 2 (ANSWERS) Semester 1 2024 - DISTINCTION GUARANTEED
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LEG2601 Assignment 2 (ANSWERS) Semester 1 2024 - DISTINCTION GUARANTEED. Answers, guidelines, workings and references..... .... Question 
1 
Complete 
Marked out of 1.00 
Question 
2 
Complete 
Marked out of 1.00 
QUIZ 
… is an example of a heritage resource protected under the National Heritage Resources Act 25 of 1999. 
a. 
Great-grandmother’s vase. 
b. 
A collection of South African 1 cent coins (no longer in circulation). 
c. 
Any gravesite. 
d. 
A building older than 60 years. 
A number...
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AQA GCSE COMBINED SCIENCE: TRILOGY 8464/C/2H Chemistry Paper 2H Version: 1.0 Final *JUN238464C2H01* IB/M/Jun23/E7 8464/C/2H QUESTION PAPER & MARKING SCHEME/ [MERGED] Marl( scheme June 2023
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GCSE 
COMBINED SCIENCE: TRILOGY 
8464/C/2H 
Chemistry Paper 2H 
Version: 1.0 Final 
*JUN238464C2H01* 
IB/M/Jun23/E7 8464/C/2H 
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 t...
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