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Rainbow [258]
3 years ago
14

In a controlled experiment, a scientist is studying how long it takes parachutes of different sizes to fall to the ground. What

is the experimental variable?
Chemistry
1 answer:
Elena L [17]3 years ago
4 0
  • The controlled variable would be the weight and time it'll take for the parachutes to land.
  • The uncontrolled variable is the wind and the amount of resistance.

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Answer:

Measure the volume of water poured into a graduated cylinder, then place the object in the water and remeasure the volume. The difference between the two volume measurements is the volume of the object. Now simply divide the mass by the volume to calculate the density of the object.

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When chlorobenzene reacts with Mg in ether followed by CO2 and neutralization with dilute HCl, __________ will be formed.
allsm [11]

Answer:

c. benzoic acid

Explanation:

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