Volume is an unreliable measure of the quantity of matter true or false

Is 9 correct? and can someone me with 10? it’s due tomorrow, you

Draw two cyclic constitutional isomers of cis-1

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy