Chemistry-Chapter 2-Notes 1 Flashcards Preview

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Flashcards in Chemistry-Chapter 2-Notes 1 Deck (51)
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1

What mixture will allow paper to give off flames but not burn?

water and rubbing alcohol

2

Real life values: meter

golf club

3

Real life values: decimeter

diameter of an orange

4

Real life values: centimeter

width of pinky finger

5

Real life values: millimeter

width of dime

6

What are the only truly exact numbers?

Whole things, such as people, which do not come in units less than one

7

Real life values: meter cubed

washing machine

8

Real life values: centimeter cubed

sugar cube

9

How many millimeters cubed are in a meter cubed?

1,000,000,000
one billion

10

Real life values: Liter

half a large soda bottle

11

1 Liter = ? milliliters

1000

12

1 Liter = ?
(hint, think meters)

1 decameter cubed

13

1 milliliter = ?
(hint, think meters)

1 centimeter cubed (or cc)

14

How many drops of water fit in a mL?

about 20

15

Real life values: Room temperature in Celcius

23 degrees

16

Real life values: Body temperature in Celsius

37 degrees

17

Real life values: Hot in Celsius

30 degrees

18

Real life values: Very Cold in Celsius

-20 degrees

19

Real life values: comfortable in Celsius

20 degrees

20

Real life values: Cold in Celsius

-10 degrees

21

Reel life values: Chilly/Cool in Celcius

10 degrees

22

Real life values: gram

large paper clip

23

How much does a penny weigh in grams?

2.5 g

24

Who much does an iPhone 5 weigh in grams?

115 g

25

What is the density of water?

1.00 g/mL (at room temperature)

26

What is water displacement?

A method by which the volume of irregularly shaped objects can be determined
An object (denser than water) is placed into a recorded amount of water. The increase in volume of the water once the object is added is the volume of said object.

27

Name all of the steps of the Scientific Method:

Observations (qualitative and quantitative); Hypothesis; Experiment; Analysis; Conclusion (return to Hypothesis if original was incorrect)

28

system

a specific portion of matter in a given region of space that has been selected for study during an experiment or observation

29

variables

the portion of the experiment that is changed; only one variable should be in each experiment

30

control

the portion of the experiment tjat is held constant throughout the experiment to ensure that you are only testing the variable