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3 years ago

1. A piece of pure gold (Au) has a volume of 50 cmWhat is its mass?

Biology

1 answer:

krok68 [10]3 years ago

7 0

Answer:

96.5g

Explanation:

Given parameters:

Volume of Au = 50cm³

Density of Au = 19.3 g/cm³

Unknown:

Mass of the gold = ?

Solution:

Density is the mass per unit volume of a compound.

Density = $\frac{mass}{volume}$

Mass = density x volume

Insert the parameters and solve;

Mass = 19.3 g/cm³ x 50cm³ = 96.5g

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3 years ago

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Answer:

When analyzing data on the nitrogenous base content of the DNA of various species, the claims are supported by the data:

In any one species, the amount of adenine closely approximates that of thymine.
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Explanation:

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DNA is the molecule that contains the genetic information of each species, formed by sequences of nitrogenous bases Adenine, Thymine, Cytosine and Guanine.

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3 years ago

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mrs_skeptik [129]

Answer:

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