# Buy or lease a vehicle

Part A: Introduction

Part B: Calculating the cost of a Vehicle

Option 1 —— Buying a Vehicle

Option 2 —Leasing a Vehicle

Part C: other costs of operating a Vehicle

To answer the question of whether to buy or lease a car, I started my project of calculating the cost of buying and leasing a car. My conclusion is that buying a car is better than leasing a car if you use the car for three or more years. After calculation, the cost of renting one car is about the same as the cost of leasing the same car if you have it until the third year. To me, buying a car is a better deal because you can decide whether you want to keep it or sell it after three years of use while leasing a car does not give you ownership. Another advantage of owning the car is that there are no limits on how you use and choose parts for your car, as you are the owner.

Working on this assignment made me practice critical thinking. Generally, I would be too lazy to think. This project also changed my perception about leasing a car because I used to think it would be cheaper to lease a car in three years. It also helps me to examine whether I want to buy or lease a car within a certain time period in the future.

# Types of Reaction Practice Lab

Experiment 1

The materials we use:

tongs, steel wool and a Bunsen burner.

we need stretch the steel wool first

Before: the steel wool has metallic luster.

During: With a pair of tongs, place the magnesium into the flame of
a Bunsen burner. The steel wool showed bright orange flame, and drop a piece.

after: the steel wool became dark and dull.

Experiment 2

The materials we use:

a Bunsen burner

we need open it about 5 seconds.

During: The flame tip seems to have water mist

Experiment 3

The materials  we use:

The KI is not part of
the reaction, it simply acts a catalyst.

before: H2O2 is white solid, Kl is clear liquid

during: liquid turn yellow, liquid going up.

after:   The liquid drops back to its original position, and a little liquid remains above.

Experiment 4

The materials  we use:

a watchglass

before of coppers: has metallic luster.

after 5 minutes: A few bubbles form and the liquid turns blue-green.

after: Bubbles and whites crystals surround the heart, the liquid kept blue-green.

Experiment 5

The materials  we use:

a spot plate

before: Potassium iodide is clear, Lead (II) nitrate is clear

after: Potassium iodide and Lead (II) nitrate mixed turn yellow.

Experiment 6

Litmus paper blue:

Acid with litmus is remained blue

Base with litmus is turned red

mixed with litmus is turned red

Red litmus paper

Acid with litmus is remained red

Base with litmus is turned  blue

mixed with litmus is remained red