1. observe: the riders have masses of 10 grams (top), 100 grams (middle), and 1 gram
(bottom). drag the 100-gram rider to 300. at this position it balances a 300-gram mass.
what happens to the pointer?

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?

What is a number added in front of a formula in order to balance the equation