What piece of lab equipment is pictured?
What piece of lab equipment is pictured?
Which of the following are considered safe in the lab? (Mark all that apply)
What piece of lab equipment is pictured?
The table shows repeated measurements by laboratory partners of the volume of oxygen released by a plant. Using a more advanced technique, their teacher measured the true volume of oxygen released by the plant as 0.311 mL. Which statement BEST describes the data?
Which of the following are physical properties? (Mark all that apply)
Sugar dissolves in warm water
A nail rusts
Students measured and recorded the density of 4 samples. Using the density column and data table shown above, which of the samples will most likely sink below the corn syrup?
A marble has a mass of 10 g and a volume of 20 mL. What is the density of the marble?
The ring in the image has a mass of 12 g. What is the density of the ring? (You have to measure the volume in the graduated cylinder before calculating the density)
The density of aluminum is 2.7 g/mL. A researcher finds a sample of aluminum with a volume of 20. mL. What mass of aluminum did he find?
Which of the following is NOT an element?
Which of the following correctly describes Iron (II) Oxide (FeO)?
One difference between a mixture and a compound is that
Which of the following is an example of a mixture?
Which of the following mixtures are homogeneous? (Mark all that apply)
To two significant figures, the measurement “0.0258 g” should be reported as
Which measurement has been expressed to three significant figures?
What is the measurement “0.000065 cm” written in scientific notation?
The measurement “2.0 x 10-2 L” is the same as which of the following?
Perform the indicated operations. Be sure to include the correct number of significant figures and units in your answer.
45.68 g + 3.2 g = _____________________
Perform the indicated operations. Be sure to include the correct number of significant figures and units in your answer.
(1.142 x 10-8 mm) x (8.5 x 10-4 mm) _____________________
Metric Conversions:
1000 mg = _______________ g
Metric Conversions:
60 cm = _______________ mm
Temperature Conversions:
Convert 154 K to °C ______________________
Temperature Conversions:
Convert -25 °C to K ______________________
Supporting Claims: Answer the question using the CER method. Be sure to clearly state your claim and justify your answer with evidence and reasoning. Please include a particle diagram(s) in your answer. (8 pts)
Question: Is burning a candle an example of a chemical change, physical change, or is it both?
