Salim added 1 g of salt to each of four beakers filled with water. He stirred the water at different speeds and recorded how long it took for the salt to dissolve.
Stirring Time (sec)
No stirring
25
Slow stirring
18
Medium stirring
10
Fast stirring
6
Based on evidence in the table, what claim should Salim make?
Group of answer choices
Salt will not dissolve in water unless the water is stirred.
Stirring water increases the rate at which a salt dissolves.
Stirring has no effect on the rate at which a salt dissolves.
Stirring water decreases the rate at which a salt dissolves.
Salim added 1 g of salt to each of four beakers filled with water. He stirred the water at different speeds and recorded how long it took for the salt to dissolve.
Stirring Time (sec)
No stirring
25
Slow stirring
18
Medium stirring
10
Fast stirring
6
Based on evidence in the table, what claim should Salim make?
Group of answer choices
1.Salt will not dissolve in water unless the water is stirred.
2.Stirring water increases the rate at which a salt dissolves.
3.Stirring has no effect on the rate at which a salt dissolves.
4.Stirring water decreases the rate at which a salt dissolves.
this is pretty simple. Read it, and make choices based on the evidence.
2. I would think the answer is obvious. You KNOW it can't be 1 because it does dissolve in 25 sec. You KNOW it can't be 3 because stirring at different speeds does have an effect. You KNOW it can't be 4 because faster speeds of stirring gives less time for the salt to dissolve.
stirring watter increases the rate at which a salt dissolves
thats thaee anwasrersa
Based on the evidence in the table, Salim should make the claim that "Stirring water increases the rate at which a salt dissolves."
To arrive at this conclusion, Salim added 1g of salt to four different beakers filled with water and observed the time it took for the salt to dissolve under different stirring conditions. Salim found that with no stirring, it took 25 seconds for the salt to dissolve. However, when the water was stirred at different speeds, the time to dissolve the salt decreased. With slow stirring, it took 18 seconds, with medium stirring it took 10 seconds, and with fast stirring it took only 6 seconds.
This indicates that as the water is stirred at different speeds, the salt dissolves faster. Therefore, based on this evidence, Salim should claim that stirring water increases the rate at which a salt dissolves.