1. Chemistry Review
Created by Educational Technology Network

2. POWERPOINT JEOPARDY
Chemical Bonds
Chemical Reactions
The pH Scale
Acids and Bases
Random Chem 10 10 10 10 10 20 20 20 20 20 30 30 30 30 30 40 40 40 40 40 50 50 50 50 50

3. An ionic bonds forms between what types of atoms?
Metals and nonmetals

4. When an atoms loses an electron is becomes a ______ ion?
positive

5. In which group on the periodic table do you find elements with 5 valence electrons?

6. When two atoms share electrons they are considered what type of bond?
Covalent Bond

7. If an atom had 14 electrons total, what is the number of valence electrons is has?

8. In what type of reaction do the products have more energy than the reactants?
endothermic

9. Is this Endo or Exothermic?
When vinegar and baking soda are mixed, new substances form and the solution becomes cooler.
Is this Endo or Exothermic?
endothermic

10. Law of conservation of mass
What is the name of the law that says matter can never be destroyed or created?
Law of conservation of mass

11. would be considered what type of reaction?
The reaction:
Mg + 2HCl → MgCl2 + H2
would be considered what type of reaction?
Single replacement

12. What is one way to increase the reaction rate of a chemical reaction?
Add a catalyst
Increase temp
Increase concentration
Increase surface area

13. Pure Water is neutral, which means it has a pH of…7

14. A solution has a pH of 1. Would it be considered strong or weak?

15. Use pH strips or litmus Paper
What is one way to determine if a solution is acidic or basic in the lab?
Use pH strips or litmus Paper

16. Which of the numbers below would be considered the strongest acid? 2

17. Which pH value indicates the highest concentration of hydroxide ions on the pH scale?14

18. Lemon juice is sour. This tells you lemons must be…
Acidic

19. What ion is released when acids are dissolved in solution?

20. A base is different from an acid because a base releases what kind of ion?
OH-

21. When an acid and base mix, what two products result?
Water and Salt

22. The following equation would be classified as what?
Neutralization

23. An electron dot diagram tells us what about the atom?
How many valence electrons it has

24. Compare a tomato and soap using the scale below.
Tomato is an acid and soap is a base.

25. Balance the equation:
H2 + O2 → H2O
2H2 + O2 → 2H2O

26. A neutral atom will have the same number of….?
Protons and Electrons

27. How is a metallic bond different from an Ionic or Covalent Bond?
Has free floating electrons or between 2 metals