Chemistry, 20.01.2021 07:30 mannablofey23
Question 1: Which of the above electron dot diagrams is WRONG and why?
A) Fluorine F because it is supposed to have 8 Valence electrons
B) Carbon C because it supposed to have 8 valence electrons
C) Nitrogen N because it is supposed to have 6 valence electrons
D) Oxygen O because it is supposed to have 6 Valence electrons
Question 2: How many valence electrons does an atom of Argon have?
A) 8
B) 7
C) 6
D) 5
Question 3: What is the proper value for F in the above table. (Picture of table above..)
A) 28
B) 30
C) 2+
D) 2-
Question 4: What is the proper value for C in the above table. (Use the same picture as the previous question)
A) 28
B) 30
C) 32
D) 65
Answers: 3
Chemistry, 22.06.2019 21:50
What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car
Answers: 2
Chemistry, 22.06.2019 22:00
For a family dinner, jose’s mom baked a loaf of bread. during the meal, his grandmother commented, “this bread is so dense! ” what do you think his grandmother meant by the word dense? you have some ideas regarding density already, but this experiment will enrich your understanding of the relationship between mass, volume and the density of objects. when making measurements in this experiment we will be using si units, the international system of units. the purpose of using si units is to have the ability to communicate and compare data results with other experiments without having to make conversions. measurement symbol si unit length m meter mass kg kilogram volume l liters density kg/l kilograms per liter any calculations that are performed during this experiment will ultimately be reported in scientific notation. recall that scientific notation is extremely important when we have data that is extremely small or large. scientists rely on a standard form of communication to quickly make hypotheses and judgements based on data. what is the density of block a? a0kg/l what is the density of block b? a1kg/l what is the density of block c? a2kg/l what is the density of block d? a3kg/l what is the density of block e? a4kg/l which block is the densest? a5
Answers: 1
Question 1: Which of the above electron dot diagrams is WRONG and why?
A) Fluorine F because it is...
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