VBr2+MgO—>MgBr2+ VO 5 grams of verz react in the above reaction to produce 0.96 grams of VO. What is the percent yield

Which is true of a liquid? it has a definite volume but not a definite mass.it has a definite mass but not a definite volume.it has a definite volume but not a definite shape.it has a definite shape but not a definite volume.

How does water evaporating from a glass show that matter is made up of particles? a. the heat energy from the air causes the glass to fill up with water particles. b. the liquid water particles turn into water vapor that spreads in the air. c. the particles of the glass dissolve in water and cause it to evaporate. d. the tiny particles of the glass evaporate and seem to disappear.

Based on the law of superposition, which layer of sedimentary rock is the oldest?