<span>Welding in confined spaces or on stainless steel generates (B) Hexavalent Chromium a very toxic chemical. Hexavalent chromium are chemical compounds that has a chromium with an oxidation state of +6. It is commonly used in textile dyes and wood preservation to avoid corrosion and conversion coatings.</span>
The correct answer is B) they operate at a higher efficiency. sorry hope the answers not to late :(
Electron is negative
Proton is positive
Neutron is just nothing really
Smooth, rough, hard or soft are common descriptions
