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3 years ago

5

Ethan is investigating a snails response to stimuli. He put the following substances on each corner of a paper towel; syrup,lemo

n juice, vinegar,and water. Then he put a snail in the center of the paper towel to see how it would respond. Which observation is evidence of the snails response to stimuli?
A.the snail likes the water
B.the snail preferred the vinegar
C.the snail moved toward the syrup
D.the snail does not like lemon juice

2 answers:

olga nikolaevna [1]3 years ago

4 0

There doesn't seem to be a clear answer, it is placed in the center when it's substances is on the corners it doesn't give anything else

sergij07 [2.7K]3 years ago

4 0

D.......................

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3 years ago

Approximately how many ice cubes must melt to cool 650 milliliters of water from 29°C to 0°C? Assume that each ice cube contains

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Explanation :

First we have to calculate the mass of water.

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Now we have to calculate the heat released on cooling.

Heat released on cooling = $m\times c\times (T_2-T_1)$

where,

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Now put all the given values in the above expression, we get:

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Heat released on cooling = 78793 J = 78.793 kJ (1 J = 0.001 kJ)

As, 1 ice cube contains 1 mole of water.

The heat required for 1 ice cube to melt = 6.02 kJ

Now we have to calculate the number of ice cubes melted.

Number of ice cubes melted = $\frac{\text{Total heat}}{\text{Heat for 1 ice cube}}$

Number of ice cubes melted = $\frac{78.793kJ}{6.02kJ}$

Number of ice cubes melted = 13.1 ≈ 13

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3 years ago

Compounds X and Y are both C6H13Cl compounds formed in the radical chlorination of 3-methylpentane. Both X and Y undergo base-pr

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