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zysi [14]
2 years ago
13

Samples of this drawing medium have been dated back to 30,000 BCE. Group of answer choices silverpoint charcoal pencil color pen

cil pastel
Chemistry
1 answer:
GuDViN [60]2 years ago
7 0

Charcoal is the sample of this drawing medium have been dated back to 30,000 BCE and is denoted as option B.

<h3>What is Charcoal?</h3>

This is referred to a black carbon residue which is heated in insufficient oxygen to give it a light weight.

It is used for drawing and has been in existence for as long as 30,000 BCE hence the reason why it is the most appropriate choice.

Read more about Charcoal here brainly.com/question/22220547

#SPJ1

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Valence electrons (the electrons on the outermost shell of the atom) are responsible for bonding

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What is the deference between dalton theory and modern atomic theory​
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A perfect cube of aluminum metal was found to weigh 20.00 g. The density of aluminum is 2.7 g/ml. What are the dimensions of the
denis23 [38]

Answer:

             Height  = 1.9493 cm

             Width =  1.9493 cm

             Depth  =  1.9493 cm

Solution:

Data Given:

                  Mass  =  20 g

                  Density  =  2.7 g/mL

Step 1: Calculate the Volume,

As,

                                        Density  =  Mass ÷ Volume

Or,

                                        Volume  =  Mass ÷ Density

Putting values,

                                        Volume  =  20 g ÷ 2.7 g/mL

                                        Volume  =  7.407 mL or 7.407 cm³

Step 2: Calculate Dimensions of the Cube:

As we know,

                                        Volume  =  length × width × depth

So, we will take the cube root of 7.407 cm³ which is 1.9493 cm.

Hence,

                                        Volume  =  1.9493 cm × 1.9493 cm × 1.9493 cm

                                        Volume  =  7.407 cm³

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