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kipiarov [429]
3 years ago
11

Jill is doing an experiment on the movement of pill bugs. She will place the pill bugs on flat surfaces covered with diffirent m

aterials to see how the texture of each material affects the bugs movement.
How can JIll use her imagination in this experiment?

A.To follow steps of the procedure precisely
B.To think of different kinds of materials used
C.To carefully record the results as they happen
D.To replicate another student's procedure exactly
Chemistry
1 answer:
Ostrovityanka [42]3 years ago
6 0

Answer:D

Explanation:

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If body fats has a density of 0.94 g/mL and 3.0 liters of fat are removed, how many pounds of fat were removed from the patient?
-Dominant- [34]

Answer:

6.217 pounds

Explanation:

We are given;

  • Density of body fats 0.94 g/mL
  • Volume of fats removed = 3.0 L

We are required to determine the mass of fats removed in pounds.

We need to know that;

Density = Mass ÷ volume

1 L = 1000 mL, thus, volume is 3000 mL

Rearranging the formula;

Mass = Density × Volume

         = 0.94 g/mL × 3000 mL

         = 2,820 g

but, 1 pound = 453.592 g

Therefore;

Mass = 2,820 g ÷ 453.592 g per pound

         = 6.217 pounds

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4 0
3 years ago
3.25 x 10+8 nm2 divide by 6.5 x 10+6 nm =
Vesnalui [34]

Answer:  50 nm

Explanation:  Two steps:

1.  Divide 3.25/6.5 = 0.5

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nm^2/nm = nm

Combine:  0.5x10^2 nm

or 50 nm

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3 years ago
What is called mother liquor in a chemistry lab?
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Answer:

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2. Molecules cannot be created or destroyed in a chemical reaction.

3. Compounds cannot be created or destroyed in a chemical reaction.

4. Heat cannot be created or destroyed in a chemical reaction.

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