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3 years ago

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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3 years ago

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Marina86 [1]

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3 years ago

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tiny-mole [99]

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Step 1: Write the balanced "molecular" equation:

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$2HI(aq) + NIS (s) → NiI₂(aq) + H₂S(g)$

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Step 3: Dissociate all soluble salts, strong acids, and strong bases (except calcium hydroxide). Leave together all "not soluble" salts and weak acids or bases:

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${2H₃O}^{ + } (aq) + NiS(s) → { Ni}^{2 + } (aq) + H₂S(g) + 2H₂O(l)$

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