Consider the 4 chemical reactions below. I. 2 H2O2(ℓ) → 2 H2O(ℓ) + O2(g)
II. N2(g) + 3 H2(g) → 2 NH3(g)
III. CaCO3(s) → CaO(s) + CO2(g)
IV. SO2(g) + H2O(ℓ) → H2SO3(aq)
For which reaction(s) will ∆S be negative?

1. if you have a gas at 127 degrees c, what is it's absolute temperature (kelvin)? a. 200kb. 300kc. 400kd. 500k2. if you had a gas whose absolute temperature measured 45 k, what is that temperature in celsius? a. -228 cb. -300 cc. 125 cd. 112 c

How is the atomic number of a nucleus changed by alpha decay

Alice did an experiment to find the relationship between the angle at which a ray of light strikes a mirror and the angle at which the mirror reflects the light. she placed a ray box in front of a mirror. she changed the angle at which the light from the ray box struck the mirror and noted the corresponding angle at which the mirror reflected the light. which of the following is the dependent variable in this experiment? the mirror used to reflect the light the ray box used as the source of light angle at which the light from the ray box strikes the mirror angle at which the mirror reflects the light from the ray box