A student measures the mass of a piece of copper three times and records the results in the following table: The actual mass of the copper is 28.7g. Which of the following is demonstrated in the student's data?
Trial
1
Mass
(grams)
26.5
26.4
28.5
2.
3
accuracy
reliability
continuity
precision

Perform the following mathematical operations and report the answer to the appropriate number of significant figures 5.87998 + 3.100

What are the spectator ions in 2h+ + so42- + ca2+ + 2r → caso4 + 2h+ + 21?

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants