A very high powered microscope would allow us to see the smallest unit of a bar of gold as shown below. What is the smallest unit found in the bar of gold?

cell

O atom

element

O nucleus

 Atom

Step-by-step explanation:

The atom is the smallest unit that can be found of an element so the atom is the correct answer. Atoms are the smallest because the atom retains the properties of the element. Anything smaller than an atom will not retain those qualities.

Atoms have electrons, protons, and neutrons with the last two existing in the nucleus of the atom but these cannot be said to be the smallest units because they do not have gold properties individually.

step-by-step explanation:

if x = 2 you have to find x to finish the problem

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)