What physical property identify a substance?
a. corrosion
b. density
c. re...
Answers: 2
Chemistry, 22.06.2019 16:10
Given the following equation: 2a1 + 3mgcl2 --> 2alcl3 + 3mg how many moles of aluminum chloride are produced from 2.5 moles of magnesium chloride?
Answers: 1
Chemistry, 22.06.2019 22:30
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
Answers: 1
Chemistry, 23.06.2019 11:20
The chemical composition of soil varies with depth. an article in communications in soil science and plant analysis describes chemical analyses of soil taken from a farm in western australia. fifty specimens were each taken at depths 50 and 250 cm. at a depth of 50 cm, the average no3 concentration (in mg/l) was 88.5 with a standard deviation of 49.4. at a depth of 250 cm, the average concentration was 110.6 with a standard deviation of 51.5. find a 95% confidence interval for the difference in no3 concentrations at the two depths.
Answers: 1
Social Studies, 09.03.2022 15:20
Chemistry, 09.03.2022 15:20
Mathematics, 09.03.2022 15:20
Mathematics, 09.03.2022 15:30
Mathematics, 09.03.2022 15:30
Mathematics, 09.03.2022 15:30
Mathematics, 09.03.2022 15:30
Mathematics, 09.03.2022 15:30
Mathematics, 09.03.2022 15:30