When welding tool steel using the gas welding method, the rods selected for welding repairs should have .

a. a slightly higher carbon content than the base metal
b. a carbon content matching the base metal
c. a much lower carbon content than the base metal
d. a much higher carbon content than the base metal

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

What is the morality of 2.50 l of solution that contains 1.85 mol of anhydrous sodium tetraborate?