Presentation is loading. Please wait.

Presentation is loading. Please wait.

Science 8 th Grade Chemical Interactions 100 200 400 300 400 Choice1Choice 2Choice 3Choice 4 300 200 400 200 100 500 100.

Similar presentations


Presentation on theme: "Science 8 th Grade Chemical Interactions 100 200 400 300 400 Choice1Choice 2Choice 3Choice 4 300 200 400 200 100 500 100."— Presentation transcript:

1

2 Science 8 th Grade Chemical Interactions

3 Choice1Choice 2Choice 3Choice

4 Row 1, Col 1 Each family in the periodic table has its own characteristic properties based on the number of ____________ or _________. Valence electrons or protons

5 1,2 The attraction between similarly charged ions is called an ___________ bond. ionic

6 1,3 When 2 atoms share electrons it’s called a ___________ bond. covalent

7 1,4 The principle of conservation of mass states ___________. Matter can not be created or destroyed.

8 2,1 Ions that are made of more than one atom are called__________. Polyatomic ions

9 2,2 A covalent bond in which electrons are shared unequally is called _____________. polar

10 2,3 Which particles of an atom are in the nucleus? Protons and neutrons

11 2,4 In water, bases make ________. Hydroxide ions

12 3,1 The electrons that bond between atoms are called_____________. Valence electrons

13 3,2 The pH scale measures________. Concentration of hydrogen ions

14 3,3 What happens when chemical bonds break and forms new bonds? Chemical reaction

15 3,4 A chemical reaction will always show a ________________. New substance

16 4,1 Neutralization is a reaction between an_____________and a ________. Acid, base

17 4,2 The substances on the left side of a chemical equation are called the ______________. reactants

18 4,3 A chemical reaction that absorbs heat energy is _________________ endothermic

19 4,4 A neutralization reaction will make __________ and a _________. Water and a salt

20 5,1 The number in front of a chemical formula and the number below an element’s symbol are called___________ and _______. Coefficient and subscript

21 5,2 The minimum amount of energy needed to start a reaction is called the _______________ Activation energy

22 5,3 In a water solution, how are acids and bases different? Acids form hydrogen ions/bases hydroxide ions

23 5,4 What happens when an atom loses an electron? It becomes a positive ion


Download ppt "Science 8 th Grade Chemical Interactions 100 200 400 300 400 Choice1Choice 2Choice 3Choice 4 300 200 400 200 100 500 100."

Similar presentations


Ads by Google