Aluminum is an element. which best describes what makes up a sample of aluminum?
a. one kind of atom
b. two different kinds of atoms
c. all carbon-based atoms
d. a carbon atom and non-carbon atoms

A sample of aluminium element is composed of one kind of atom.

An element is an example of a pure sample. In an element, there is only one type of atom present and that is the atom that composes the element.

So, in a sample of aluminium element, we only expect to see aluminium atoms which compose the element.

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c, liquids evaporate, creating a gas

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml