Chem Review

Question 1

What is the correct formula for phosphoric acid?

Answer 1

H3PO4

Question 2

What type of reaction occurs between sodium and chlorine?

Answer 2

Synthesis

Question 3

What type of reactions occurs between magnesium and hydrochloric acid?

Answer 3

Single displacement

Question 4

What is the name of the compound PCl3?

Answer 4

Phosphorus trichloride

Question 5

In a metallic reaction, a metallic element..?

Answer 5

Loses electrons

Question 6

Ionic bonds are generally formed between?

Answer 6

Alkali metals and halogens

Question 7

What are all properties of acids?

Answer 7

Slipper, sour, conducts

Question 8

Two particles have the following compositions:
1. 10 protons, 9 electrons
2. 11 protons, 10 electrons
What are they both best described as?

Answer 8

Protons w/ an electron deficiency

Question 9

What is the formula for magnesium nitrate?

Answer 9

Mg(NO3)2

Question 10

How many phosphorus atoms are in Mg(PO4)2?

Answer 10

2

Question 11

In a neutralization reaction what is most likely to be produced?

Answer 11

Water and salt

Question 12

A substance with a PH of 8 would best be described as?

Answer 12

Weakly basic

Question 13

Why are acids classified as a strong acid?

Answer 13

More H+ ions and present in the solution

Question 14

In an acidic solution what colour is phenolphthalein?

Answer 14

Colourless

Question 15

What ending goes w/ most bases?

Answer 15

Hydroxide

Question 16

When blue litmus paper is dipped into an acid the blue litmus paper turns to what colour?

Answer 16

Red

Question 17

What is something that describes a physical change?

Answer 17

Sugar dissolving when water is added

Question 18

What is a product of incomplete combustion but not a product of complete combustion?

Answer 18

Carbon monoxide

Question 19

What is the PH of pure water?

Answer 19

7

Question 20

What would form a diatomic molecule?

Answer 20

Iodine and chlorine

Question 21

What is an example of molecular compound?

Answer 21

Water

Question 22

What is an Ionic compound composed of?

Answer 22

1 metal and 1 non-metal

Question 23

What is a molecular compound composed of?

Answer 23

2 non-metals

Question 24

What is an acid composed of?

Answer 24

Hydrogen and a polyatomic atom

Question 25

What is a polyatomic compound composed of?

Answer 25

1 metal and one polyatomic ion

Question 26

What is a synthesis reaction?

Answer 26

Combination of smaller molecules or elements into one larger compound or molecule

Question 27

What happens as a result of synthesis reaction?

Answer 27

Valence numbers get crossed

Question 28

Example of synthesis reaction?

Answer 28

2Ag + Cl2 = 2AGCl O2 + 2Mg = 2MgO

Question 29

What is a decomposition reaction?

Answer 29

The splitting of larger molecules into elements or smaller molecules

Question 30

What is a single displacement reaction?

Answer 30

When one element replaces another element in a compound, producing a new compound

Question 31

What is the difference between cation vs anion equations?

Answer 31

If the equation is cation hydrogen or metal stays by itself but if it is anion group 17 (halogens) will

Question 32

What are double displacement reactions?

Answer 32

When one element replaces another in a compound producing two new compounds - AB + CD = AD + CB

Question 33

What are the two types of combustion reaction?

Answer 33

1. Complete combustion 2. incomplete combustion

Question 34

Complete combustion?

Answer 34

Reaction between a hydrocarbon w/ an oxygen to produce carbon dioxide and water - Must have fuel, oxygen, and heat for reaction to occur

Question 35

Incomplete combustion?

Answer 35

Reaction between fuel and a limited amount of oxygen - Same reactants - Products include Carbon, carbon monoxide, carbon dioxide and water