An actual measurement of a sample is 3.5 m. The measured value is 2.5 m. What is the percent error in the measurement?
a 27 percent
b 29 percent
C 10 percent
d 40 percent

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt

Rank the four gases (air, exhaled air, gas produced from from decomposition of h2o2, gas from decomposition of nahco3) in order of increasing concentration of co2

In which region is the substance in both the solid phase and the liquid phase? 1 2. 3 4 mark this and return save and exit next