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faltersainse [42]
2 years ago
7

HELP, THANKS

Chemistry
1 answer:
Natasha_Volkova [10]2 years ago
6 0

The mass of the cube with length of 2cm is 320g

  • We were given length of cube as 2cm

<em>To know the volume of cube we can use the expression</em>

<em />

Volume of cube = a^{3}

Where a= length of cube=2cm

Then volume of the cube 2^{3}   = 8 cm.

  • Density was given as (  \frac{40g}{  cm^{3} } )

But we know that density is the ratio of mass to the volume of a substance.

  • ThenDensity=   \frac{ mass     }{  volume    }

But we are looking for mass of the object, the we can make Mass as subject of the formula

  • Mass= density * volume

Them substitute the values

  • Mass = (40 * 8)

= 320g

<em>Therefore mass of the cube is</em> 320g

Learn more at: brainly.com/question/18320053?referrer=searchResults

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