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Chapter 8 and 9 Review.

Published byNathan Ramsey Modified over 6 years ago

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Presentation on theme: "Chapter 8 and 9 Review."— Presentation transcript:

1 Chapter 8 and 9 Review

2 Why is water a covalent bond?

3 Why is water a covalent bond?
It consists of two nonmetal atoms that share electrons to form a molecule (one end has a partial positive charge and the other end has a partial negative charge)

4 What is a common example of an ionic bond?

5 What is a common example of an ionic bond?
Salt

6 Why do the noble gases found in group 18 NOT form compounds readily?

7 Why do the noble gases found in group 18 NOT form compounds readily?
Noble gases have 8 electrons in their valence shells, therefore, they have no need to gain or lose electrons.

8 What happens to the electrons during a covalent bond?

9 What happens to the electrons during a covalent bond?
The atoms SHARE ELECTRONS

10 Where are electrons located?

11 Where are electrons located?
In the energy levels of an atom outside of the nucleus

12 Most nonmetals are gases at room temperature

13 How many dots would be on an electron dot diagram for an element in group 2?

14 How many dots would be on an electron dot diagram for an element in group 2?

15 Know definition for mixtures and pH

16 High solubility means that ______ of that substance can be dissolved
More or less?

17 High solubility means that ______ of that substance can be dissolved
More

18 Where is the positive and negative end? What type of molecule is this?

19 What is the formula for concentration?

20 What is the formula for concentration?
Dividing the mass of the solute by the volume of the solution

21 Does pH increase or decrease as hydronium concentrations increase?

22 Does pH increase or decrease as hydronium concentrations increase?
Decreases - acid

23 How can you increase the solubility of sugar in water?

24 How can you increase the solubility of sugar in water?
Heat up the solution

25 How does a solution with a pH of 2 compare to a solution with a pH of 1?

26 How does a solution with a pH of 2 compare to a solution with a pH of 1?
The pH 1 solution is ten times more acidic than that with a pH of 2

27 Acid base solution solute solvent indicator dilute concentrated OH-

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