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garri49 [273]
3 years ago
10

A block of wood 3.0 cm on each side has a mass of 27 g. What is the density of this block?

Chemistry
2 answers:
insens350 [35]3 years ago
4 0

Answer: 20

Explanation: there you go my freind

Leokris [45]3 years ago
3 0

Answer:

1g/cm^3

Explanation:

So a block (It's a block!) of wood is 3cm on each side so it is a cube.

The volume of a cube is given by s^3. So the volume of this block is 3cm x 3cm x3 cm = 27 cm^3.

density = mass/volume =27 g / 27 cm^3 = 1 g/cm^3.

so the answer is 1 g/cm^3.    

SORRY IF THE ANSWER IS WRONG

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Explanation:

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4 years ago
What is the total amount of matter in an ecosystem doing? always changing always increasing always decreasing remaining the same
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Answer:

Remaining the same

Explanation:

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5 0
3 years ago
The sample of 15.0 g of KCl is dissolved into a solution with a total volume of 250.0 mL. What is the molarity of KCl in the sol
lina2011 [118]

Answer:

0.805 M.

Explanation:

Hello!

In this case, since the molarity of a solution is computing by dividing the moles of solute over the volume of solution in liters (M=n/V), for 15.0 g of potassium chloride (74.55 g/mol) we compute the corresponding moles:

n=15.0gKCl*\frac{1molKCl}{74.55gKCl}=0.201molKCl

Next, since the volume is 0.2500 in liters, the molarity turns out:

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