Posted by Mary Helpppppp on Wednesday, October 26, 2011 at 11:23am.
Four students each added salt crystals to water and measured the time it took for all the crystals to disolve. The following table shows their results.
A three-column table, with column headers 'Student, 'Temperature (°C), 'and 'Time (sec).' For Marcus, the values are '10'and '65,' respectively. For Tyra, the values are '25' and '40,' respectively, For Luis, the values are '50' and '25,' respectively.' For Andrew the values are '75' and '15,' respectively.
Athena repeated the investigation using water heated to 40°C. Which is the time MOST LIKELY measured by Athena?
a) 10 sec
b) 20 sec
c) 30 sec
d) 50 sec
Science - bobpursley, Wednesday, October 26, 2011 at 11:41am
temps recorded/ times
Now at a temp of 40, time should be between 40 and 25 seconds, right?
Science - Sally, Wednesday, October 26, 2011 at 11:43am
So the answer would be C (30 sec), right?
Science - l, Monday, February 3, 2014 at 5:32pm
Answer This Question
More Related Questions
- Science - David has to dissolve salt crystals in the water. What would be the ...
- Scienece - A student crystallized a compound from benzene and observed only a ...
- Chemistry - • A student crystallized a compound from benzene and observed only a...
- science - kendra was looking at recipes in a cookbook. she divided some of the ...
- keybording and word processing - 7. to adjust a column's width in a table, you ...
- English Expression - There is a time table for the students. This activity is to...
- Chemistry - 1. How would using 0.42 g CH3CO2Na * 3H2O instead of the amount ...
- Science - why does all the information available state that the maximum amount ...
- math - three students took part in an after-school science club. Each student ...
- Material balance - A dilute salt solution containing 6% salt is fed to an ...