Excess electrons are placed on a small lead sphere with mass6.80 g so that its net charge is-3.00 Excess electrons are placed on a small lead sphere 10-9 C. (a) Find the number of excess electrons on thesphere.
(b) How many excess electrons are there per lead atom? The atomicnumber of lead is 82, and its atomic mass is 207 g/mol.

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answer and explanation;

composition refers to both the types of minerals within a rock and the overall chemical makeup of the rock while texture refers to the size and arrangement of the minerals or grains that make up a rock. both composition and texture can be used to classify rocks, such as igneous rocks. texture describes how the rock became solid or crystallized from liquid, melted rock. composition of a rock describes the minerals that make up a particular rock.

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