The reaction 2 NO(g) + Cl2(g) → 2 NOCl(g)
was studied at −10°C. The following results were obtained, where the rate of the reaction is the following.
rate = − d[Cl2]/dt
What is the value of the rate constant?

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)

All motion is caused by force? true or false

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?