## A community for students. Sign up today

Here's the question you clicked on:

## katlin95 2 years ago __________, which compares an object’s mass to its volume, is an important characteristic property of all substances. A. Volume B. Length C. Density D. Gravity

• This Question is Closed
1. jim_thompson5910

what did you get

2. katlin95

I got density

3. jim_thompson5910

that is correct density = mass/volume

4. katlin95

yaya!!! I have another question

5. katlin95

write 6.3 · 10-5 as a number A. 0.063 B. 0.0063 C. 0.000063 D. 0.00063 Wouldnt it be C??

6. jim_thompson5910

yep, move the decimal 5 spots to the left

7. katlin95

can u try your best to correct my questions?

8. jim_thompson5910

what kind of questions, science?

9. katlin95

yep, easy question

10. jim_thompson5910

ok it'll depend, but i'll give it my best shot

11. katlin95

okay thanks!!:)

12. katlin95

How do an astronaut mass and weight on the earth compare to those on the moon? A. mass and weight are both different B. mass and weight are both the same C. mass is different weight is the same D. mass is the same, weight is different

13. jim_thompson5910

what did you get

14. katlin95

got C

15. jim_thompson5910

you have it flipped, mass would stay the same (they don't lose any particles of mass), but the weight would be different

16. jim_thompson5910

since the force of gravity on the moon is smaller

17. katlin95

oh gotchya!

18. katlin95

which of the following describes the correct way to handle a test tube that is being heated in science lab? A. light a match above the test tube to test wheather the released gas is flammable B. move the test tube below your nose so you can easily observe the released gas C. point the container away from yourself and your lab partners to avoid injury D. point the container toward yourself so that others wont be affected by the chemicals

19. katlin95

I got B

20. jim_thompson5910

hmm unless you know what the gas is (and if it's not toxic), then B would be fine

21. jim_thompson5910

but most of the time you don't know the gas and if it's toxic or not

22. jim_thompson5910

A is just stupid and will most likely lead to a fire

23. katlin95

its C

24. jim_thompson5910

yep, D is just as stupid too when you can do C

25. katlin95

yep lol

26. katlin95

write 7,200,000,000 in scientific notation A. 7.2*10^8 B. 7.2*10^7 C. 7.2*10^10 D. 7.2*10^9

27. jim_thompson5910

you got ???

28. katlin95

I got D

29. jim_thompson5910

me too, it's 7.2 billion

30. katlin95

write 9.4*10^-2 as a number A. 0.094 B.0.94 C. 9.4 D. 0.0094

31. katlin95

I got D

32. jim_thompson5910

move the decimal 2 spots to the left

33. katlin95

oh A right?

34. jim_thompson5910

yep

35. katlin95

if you accidently mixed two different liquids in an expiriment and found that the mixture was bubbling, what should you do? A. observe and record what happens next B. pour the mixture imedietly into a nearby sink C. report it to the teacher immedietly D. write it your loabrotory report under the conclusions section

36. katlin95

wouldnt it be either A or C?

37. jim_thompson5910

probably C since it could be hazardous, but you don't know

38. jim_thompson5910

better be safe than sorry

39. katlin95

yes thats very true lol!

40. jim_thompson5910

it definitely wouldn't be B because you could be pouring toxic chemicals down the drain which would end up in a local river or stream

41. jim_thompson5910

or the ocean

42. katlin95

in significant figures, which zeros are NOT considered significant? A. zeros before a digit, but after a decimal B. zeros between two non-zero numbers C. zeros in a whole number before a stated decimal D. zeros in a whole number before an implied decimal I think its A

43. katlin95

or B

44. jim_thompson5910

either A or D I think

45. katlin95

hmm which one should we choose then?

46. jim_thompson5910

something like 0.000000501 has 3 sig figs (5, 0, 1) because the zeros in front aren't counted

47. jim_thompson5910

something like 7,000,000 has only 1 sig fig

48. jim_thompson5910

but if you said 7,000,000.0, then it would have 7 sig figs

49. katlin95

so then we should pick A right?

50. jim_thompson5910

D could be lumped together with C somehow, not sure though

51. jim_thompson5910

so I would think D is partially true, which means we can eliminate it

52. jim_thompson5910

so yeah, A

53. katlin95

which one of the following is true about scientific throry and scientific law? A. a scientific law can be changed, while a theory is absolute B. a scientific theory can be changed, while a scientific law is absolute C. Both scientific law and scientific theory are absolute and cannot be challenged D. both scientific laaw and scientific theory can be challenged

54. katlin95

I got A

55. jim_thompson5910

you sure?

56. katlin95

actually I think they both can be absolute but not chalanged

57. katlin95

what do you think I got C for my answer now

58. jim_thompson5910

I would think that a law is absolute, but a theory can be challenged

59. jim_thompson5910

if it couldn't be challenged, then it would be perfect and there wouldn't be any flaws

60. katlin95

oh alright, so then B would be a reliable answer?

61. jim_thompson5910

yeah B sounds better

62. katlin95

what does a centi represent? A. 10^-3 B. 10^-2 C. 10^2 D. 10^3

63. Grazes

B. 10^-2

64. jim_thompson5910

centi = one-hundredth

65. katlin95

hey jim sorry my computer died

66. katlin95

u still here

67. jim_thompson5910

that's ok

68. katlin95

I got b for the last question about the centi

69. jim_thompson5910

yes that's correct

70. katlin95

how many millimeters are in 1.6 liters?

71. jim_thompson5910

you mean milliliters?

72. katlin95

1,600 right? and yep:)

73. jim_thompson5910

not millimeters

74. jim_thompson5910

yeah 1600 mL

75. katlin95

is the mass of the force if gravity on an object? A. volume C. mass C. matter D. weight

76. jim_thompson5910

what did you get

77. katlin95

I got weight

78. jim_thompson5910

good

79. katlin95

is that correct?

80. jim_thompson5910

yes

81. katlin95

what is the base unit for mass in the international system of units (si) A. gram B. kilogram C. ounce D. pound I got a kilogram

82. jim_thompson5910

right again

83. katlin95

Which of the following is equivalent to 16mL? A.16cm^3 B.16 gallons c.16 liters D. 16m^3

84. katlin95

I got A

85. jim_thompson5910

me too

86. katlin95

which of the following is a temperature represented in metric system scale? A. 4mL B. 30 degree C C. 68 k D. 85 degrees F

87. katlin95

I got B

88. jim_thompson5910

correct

89. katlin95

write 0.72 in scientific notation I got 7.2*10^-1

90. jim_thompson5910

good

91. jim_thompson5910

you're on a roll

92. katlin95

thanks! write 9.4*10^5 as a number A. 940,000 B. 9,400 C. 94,000 D. 9,400,000

93. jim_thompson5910

you got what

94. katlin95

I got C as my answer

95. katlin95

@jim_thompson5910 were did ya g? lol

96. jim_thompson5910

C is wrong

97. jim_thompson5910

sry the site is glitching on me

98. jim_thompson5910

and going slow too

99. katlin95

hey u their?

100. katlin95

@jim_thompson5910

101. jim_thompson5910

yeah

102. katlin95

if cathys height is 66 inches, what is her height in centimeters equality statment 1 in=2.54 cm A. 10.23 cm B. 25.98 cm C. 167.64 cm D. 425.81 cm

103. katlin95

I got B

104. jim_thompson5910

you multiply by 2.54, not divide

105. katlin95

167.64

106. katlin95

in what way does science helps us to catagorize the world? A. chemically B. effortlessly C. emotionally D. physically

107. katlin95

I think its D

108. jim_thompson5910

D sounds right, but it might be A

109. jim_thompson5910

D sounds like a better fit though

110. katlin95

write 9.4*10^5 as a number A. 940,000 B. 9,400 C. 94,000 D. 9,400,000

111. katlin95

is it b?

112. jim_thompson5910

no

113. jim_thompson5910

B would be 9.4*10^3

114. katlin95

D?

115. katlin95

?

116. jim_thompson5910

you would move the decimal point 5 spots to the right

117. katlin95

ohhh lol then A

118. katlin95

right?

119. jim_thompson5910

yes

120. katlin95

thanks fer yer help:)!!

121. jim_thompson5910

yw

#### Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy