Properties
Water freezes.
What is a physical reaction?
Sugar and cream dissolved in coffee
What is a homogenous mixture?
What is 3?
A student took a calibrated 200.0 gram mass, weighed it on a laboratory balance, and found it read 196.5 g. What was the student’s percent error?
The following measurements were made to determine the density of a material whose value was, according to the Handbook of Chemistry and Physics, 1.24 g/mL
Trial #1 1.20 g/mL, Trial #2 1.22 g/mL, Trial #3 1.22 g/mL
What is accurate and precise?
Two colorless solutions mix to produce a solid yellow precipitate.
What is a chemical and intensive property?
iron filings (Fe)
What is pure element?
Write in scientific notation: 638200000
What is 6.382 x 108
Convert 96 kilograms(kg) to megagrams(Mg)
What is 0.096?
Three values that have been thrown with high precision and high accuracy
Answers will vary.
The mass of a sample of sulfur is 14.3 grams.
What is a physical and extensive property?
soil
What is heterogeneous mixture?
Write in scientific notation: 1654
What is 1.654 x 103
A student measured the specific heat of water to be 4.29 J/g · Co . The literature value of the specific heat of water is 4.18 J/g · Co . What was the student’s percent error?
What is 2.63%?
The following measurements were made to determine the density of a material whose value was, according to the handbook of Chemistry and Physics, 1.15 g/mL Trial #1 0.95 g/mL Trial #2 1.16 g/mL Trial #3 1.26 g/mL
What is neither?
Milk curdles.
benzene(C6H6)
What is pure compound?
Write in scientific notation: 0.000000912
What is 9.12 x 10-7
Convert 1.27 grams(g) to kilograms(kg)
What is 0.00127 kg?
The following measurements were made to determine the density of a material whose value was, according to the handbook of Chemistry and Physics, 3.75 g/mL Trial #1 4.75 g/mL Trial #2 4.76 g/mL Trial #3 4.74 g/mL
What is precise?
The amount of energy required to burn a sample of cellulose is 164 kJ.
brass horn
What is homogenous mixture?
Amount of sig figs in the number 20.0000607
What is 9?
While doing a lab, a student found the density of a piece of pure aluminum to be 2.85 g/cm3 . The accepted value for the density of aluminum is 2.70 g/cm3 . What was the student's percent error?
What is 5.56%?
Draw three arrows that have been thrown with low precision and high accuracy.
Answers will vary