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Chemistry, 27.05.2021 19:50, babygirl2984
looking at the chemical formula caF2 (calcium fluoride), what do you think this substance is made of. metal, metalloid, non metal
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Chemistry, 22.06.2019 21:30, rondonalba
Electromagnets coils of wire paper clips picked up 10 3 15 6 20 9 25 12 ms. owens' class was studying magnets. ms. owens showed her students how to make an electromagnet using a nail, a d-cell battery, and plastic coated wire. the students wrapped the wire around the nail and then attached the ends to the battery. when they were finished, they tested their magnets by investigating how many paperclips their magnets could pick up. they also tested whether they could increase the strength of their electromagnets by using more coils of wire. they recorded the class average of their results in the data table seen here. ms. owens asked her students to graph their data in a line graph. how should the students label the x-axis on their line graph? a) size of battery b) number of paper clips c) number of coils of wire d) strength of electromagnet
Answers: 2
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Chemistry, 23.06.2019 05:40, MyChannelBruh6896
Convert a speed of 201 cm/s to units of inches per minute. also, show the unit analysis by dragging components into the unitβfactor slots.
Answers: 1
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Chemistry, 23.06.2019 11:20, bobthebattlebot
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
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looking at the chemical formula caF2 (calcium fluoride), what do you think this substance is made of...
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