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the reactants of two reactions are shown.
reaction 1: c and o2
reaction 2: k2so4 and cacl2
which reaction is likely to be a redox reaction?
a. only reaction 2, because potassium and calcium ions will interchange their positions

b. both, because the electrostatic charge on cations will change during each reaction

c. both, because the electrostatic charge on anions will change during each reaction

d. only reaction 1, because the charge of carbon changes during the reaction

Why is the bond angle in a water molecule less than the bond angle of methane? a. the central oxygen atom in water has two lone pairs of electrons, whereas the central carbon atom in methane has no lone pairs. b. the central hydrogen atom in water has one lone pair of electrons, whereas the central carbon atom in methane has two lone pairs. c. the central oxygen atom in water has four lone pairs of electrons, whereas the central carbon atom in methane has only one lone pair. d. the central oxygen atom exerts more repulsive force on surrounding atoms than the central carbon atom in methane does. reset next

Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.

What if it is did darwin used to support his theory of evolution