Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Chemisty 1 > Chapter 4 Flashcards > Flashcards

Chapter 4 Flashcards

0
Q

State the law of conservation of energy

A

Energy can be neither created or destroyed

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
1
Q

What is energy

A

The capacity to do work

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How does heat differ from temperature

A

Temperature is the amount of energy in an object where heat is the transfer of energy from a hot object

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Explain how an endothermic process differ from an exothermic process

A

Endothermic process- any change in matter in which energy is absorbed from surroundings

Exothermic process- Chang in matter in which energy is released

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

All physical and chemical changes involve a change in what

A

Energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Define evaporation

A

The change of a substance from liquid to gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Define system

A

Consist of all the components that are being studied at any given time

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Define surrounding

A

All the things around the object that is being studied or everything outside the system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Energy exists in different forms, including what

A 
Chemical 
Heat 
Electrical
Mechinacal
Light
Sound
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Define heat

A

The energy transferred between objects that are at different temperatures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Heat energy is always transferred from what objects to what objects

A

Warmer to cooler

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Energy is also transferred a heat during what

A

Chemical change

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

T(k)-273.15k is = to what

A

to Celsius

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

T(c)+273.15c is = to what

A

Kelvin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Covert 0c to kelvin

A

273.15k

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Covert -50c to Kevin

A

223.15k

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Covert 90c to kelvin

A

363.15k

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Covert -20c to Kevin

A

253.15k

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Covert 100k to Celsius

A

-173.15c

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Covert 200k to Celsius

A

-73.15c

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Convert 273k to Celsius

A

-0.15c

21
Q

Covert 350k to Celsius

A

76.85c

22
Q

Calculate the specific heat if a substance if a 45g sample absorbs 22j as the temperature is raised from 158k to 238k

A

0.006j/gk

23
Q

Give the number of significant figures in 10.0005

A

6

24
Q

Give the number of significant figures in 0.003423

A

4

25
Q

Give the number of significant figures in 2900

A

2

26
Q

Give the number of significant figures in 8.9X 10^5

A

2

27
Q

Determine the answer for each of the following. Be sure to use the correct number of significant figures 27.34+6.90+13.124=

A

47.36

28
Q

Determine the answer for each of the following. Be sure to use the correct number of significant figures 2.8023-4.762=

A

1.960

29
Q

Determine the answer for each of the following. Be sure to use the correct number of significant figures 0.32x14.50x120=

A

560

30
Q

Determine the answer for each of the following. Be sure to use the correct number of significant figures 24.1/0.005=

A

5000

31
Q

Round the number to the 3 significant figure 707.5

A

708

32
Q

Round the number to the 3 significant figure 2,300.2

A

2,300

33
Q

Round the number to the 3 significant figure 0.0003350

A

0.000335

34
Q

Round the number to the 3 significant figure 10.26730

A

10.3

35
Q

Convert to the correct scientific notation 1747

A

1.747x10^3

36
Q

Convert to the correct scientific notation 0.00000984

A

9.84x10^-6

37
Q

Convert to the correct scientific notation 3200.0x10^2

A

3.2x10^5

38
Q

Convert to the correct scientific notation 0.002014x10^2

A

2.56x10^16

39
Q

Convert to the correct scientific notation 25600000000000000

A

2.56x10^16

40
Q

State the number of significant numbers 3218

A

4

41
Q

State the number of significant numbers 60.080

A

5

42
Q

State the number of significant numbers 0.000534

A

3

43
Q

Convert to the correct scientific notation 810,000

A

8.1x10^5

44
Q

Convert to the correct scientific notation 0.000634

A

6.34x10^-4

45
Q

Convert to the correct scientific notation 60,000,000

A

6x10^7

46
Q

Determine the answer for each of the following. Be sure to use the correct number of significant figures 2.34x10^47+ 9.2x10^46

A

3.3x10^47

47
Q

Determine the answer for each of the following. Be sure to use the correct number of significant figures 9132.0-1.6x10^3

A

7532

48
Q

Determine the answer for each of the following. Be sure to use the correct number of significant figures 85.26+4.7

A

90.0

49
Q

Determine the answer for each of the following. Be sure to use the correct number of significant figures 5,108x4.2107

A

21510

Chemisty 1 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions