2mg + o2--> mgo for this unbalanced chemical equation, what is the coefficient for oxygen when the equation is balanced? a. 1 b. 2 c. 3 d. 4

The first element on the periodic table of elements is carbon. a. true b. false

Naoki's bicycle has a mass of 10 kg. if naoki sits on her bicycle and starts pedaling with a force of 168 n, causing an acceleration of 2.8 m/s2, what is naoki's mass?

Can someone me with 6 to 10 plz this is for masteries test.