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LenaWriter [7]
3 years ago
5

If a chemical change has taken place, which of these is most likely true?

Chemistry
2 answers:
____ [38]3 years ago
5 0
<span>C. A completely new substance is formed.</span>
Paul [167]3 years ago
5 0
C completely new substance
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skad [1K]

Answer:

m = 31.284 grams

Explanation:

Given that,

The dimension of a magnesium block is 2.00 cm  x 3.00 cm x 3.00 cm.

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We need to find the mass of the magnesium block. We know that the density of an object is given by its mass per unit its volume. So,

d=\dfrac{m}{V}\\\\\text{Where m=mass}\\\\m=d\times V\\\\m=1.738\ g/cm^3\times (2\times 3\times 3)\ cm^3\\\\m=31.284\ \text{grams}

So, the mass of the block is 31.284 grams.

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3 years ago
Describe an acid or base in terms of its relationship to protons
motikmotik
Acids are donors of protons (H+) and bases are acceptors of protons.
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2 years ago
The
Marat540 [252]

Answer:

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