Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

chemistry finals

chemistry finals first simetry

QuestionAnswer
1. The creation mandate is given in the book of _ Genesis
2. Who was the Nobel prize-winning physicist who said, "what I cannot create, I cannot understand" and created models to represent what reality might be like? Richard Feynman
3. Physical, descriptive, or mathematical representations that characterize a system or explain a phenomenon are called scientific _________. models
4. All scientific approach their work with a certain _______, which is the perspective from which they see and interpret all of life. world view
5. An idea assumed to be true without proof is _____ a presupposition
6. Which of the following is a type of qualitative data? color
7. Which of the following is not a type of qualitative data? mass
8. The mass of a crystal as measured on a balance would be an example of ________ data. quantitative
9. The data or conclusions that result from careful experimentation can be described as ______. empirical
10. What is the name given to an inductive process scientists use to form and test hypotheses by collecting data to arrive at a conclusion? scientific method
11. Which of these would be most like a scientific model? theory
12. Which of these would be most like a scientific laws? they reveal a pattern in nature
13. What is the main reason chemistry developed over time? to meet people's needs
14. What is a scientific hypothesis? a suggested explanation for an observation to test
15. What term means that the physical universe was created out of nothing by God? ex nihilo
16. Which of these is a physical property? a metal being hammered into a sheet
17. The amount of matter packed into a given volume determines its __________. density
18. A rock weighs more than a piece of foam, even if the foam is twice the volume of the rock. what property of matter does this illustrate? density
19. A material that has a high level of malleability will probably have a high level of _________. ductility
20. All of matter can be divided into two categories, pure substances and ________. mixtures
21. Iron (Fe) is a monatomic element
22. Oxygen (O2) is a diatomic element
23. Hydrogen peroxide (H2O2) is a compound
24. Phosphorus (p4) is a polyatomic element
25. A charged atom is called a(n) ion
26. Pure water is a compound
27. In a formula Mg(OH)2, the numeral 2 is called a _______. subscript
28. How many atoms of sulfur are present in 2Al (SO4) ? 2 3 6
29. How many atoms of oxygen are present in 2Al (SO4) ? 2 3 24
30. In the chemical formular 10Al(C H O ) , the numeral 10 is a 2 3 2 3 ___________. coefficient
31. Which of the following is not one of the six common forms of energy?(mechanical, dynamic, nuclear, chemical) dynamic
32. What unit is used to measure both energy and work? joule
33. The purpose of a toaster is to convert _____________ energy to ___________ energy. electromagnetic/thermal
34. The measure of the dispersal of energy in a system is known as ______. entropy
35. When entropy __________, the energy in a system becomes less usable. increases
36. The temperature outside is 87°F. what is the temperature in degrees Celsius? 31° C
37. The freezing point of Nitrogen is -210°C. What is the temperature in kelvins? 63k
38. Dry Ice has a temperature of 196K. What is the temperature of dry ice on the Celsius scale? -77°C
39. Which of the following is not a characteristic of solids? (fixed volume, particles rigidly held in a fixed volume, ease of compressibility, relatively little kinetic energy) ease of compressibility
40. Which of these states of matter displays the greatest amount of kinetic energy?(solid, liquid, gas, plasma) plasma
41. which form of matter best describes molten lead? liquid
42.which form of matter best describes dust? solid
43. which state of matter exists in a lit neon sign? plasma
44. If the bathroom mirror fogs up while you are in the shower, _________ has occurred. condensation
45. When water vapor forms dew on the grass, ________ has occurred. condensation
46. A(n) _________ system is any system of measurement based on a decimal scale. metric
47. The scale of a measuring instrument is _______, or accurately subdivided into measuring units. graduated
48. what is the only Sl base unit that is still defined by a man-made object? kilogram
49. A chemist wants to measure the mass of a lump of coal. what Sl base unit will he use? kilogram
50. Units of measurement that comes from basic Sl units are called _____________ units. derived
51. The square meter is a derived Sl unit for __________. area
52. What is the correct way to abbreviate milliliter mL
53. What prefix means "billionth"? nano------
54. The human eye can defect wavelengths of light as short as short as 0.000037 cm. what is this wavelength in nanometers? 370mm
55. 25500 grams equal __________ kilograms. 25.5
56. Using bridge notation, convert 463 kg to milligrams. (4.62)(10)8th power mg
57. Using bridge notation, convert 342 mm to decimeters 3.42 dm
58.to calculate the percent error, you must take the absolute value of the _________ value minus the _________ value, divide by the __________ value, and multiply by 100%. observe/ accepted/ accepted
59.the smaller the percent error of a measurement is, the more ___________ the measurement is. accurate
60. You measure the mass of a product in a chemical reaction to be 1.87g. Theoretical calculations predict that you should have obtained 1.95g. Using the correct number of significant digits, calculate the percent error. 4.10%
61. you measure the products of a chemical reaction three times and get 6.15g, 6.16g, and 6.13g. The actual mass is 6.14g. Your measurements are both accurate and precise
62. You measure products of a chemical reaction three times and get 4.12g, 3.25g and 4.79g. The actual mass is 2.25g. Your measurements are neither accurate nor precise
63. Significant digits apply only to _______ data. measured
64. All ________ digits are considered significant in a measurement. nonzero
65. what indicates the precision of an instrument and helps scientists report measurements honestly?
Created by: brpa8501
Popular Chemistry sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards