Homework Help: Science

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
10/65
25/40
50/25
75/15

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?

Answer this Question

Related Questions

Science - David has to dissolve salt crystals in the water. What would be the ...
physics - If a bowl of salt water is left in the sun long enough for the water ...
Chemistry - 1. How would using 0.42 g CH3CO2Na * 3H2O instead of the amount ...
Growing salt crystals - What kind of common salt compounds can be found at the ...
organic chem! - when trying to purify aspirin, why would i have to add hot water...
physics - If a bowl of salt water is left in the sun long enough for the water ...
Chemistry - • A student crystallized a compound from benzene and observed ...
Chem - In the previous experiment, you recrystallized salicylic acid. If you ...
6th grade - Which grows faster, salt crystals or sugar crystals?
Chemistry - How might one separate a mixture of water and salt? A solution of ...

For Further Reading

First Name:
School Subject:
Answer: