Unit 1 chemistry test

What type of solution is formed if 10 g of kclo3 are dissolved in 100g of water at 30

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory

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?