For each of the following balanced equations, write the oxidation number above the symbol of each atom that changes oxidation state in the course of the reaction. (a) N2O4(g) 1 KCl(s) 88n NOCl(g) 1 KNO3(s) (b) H2S(g) 1 4 O2F2(s) 88n SF6(g) 1 2 HF(g) 1 4 O2(g) (c) 2 POBr3(s) 1 3 Mg(s) 88n 2 PO(s) 1 3 MgBr2(s) (d) 4 BCl3(g) 1 3 SF4(g) 88n 4 BF3(g) 1 3 SCl2(,) 1 3 Cl2(g)

The image shows a process that releases nuclear energy which statement best identifies the process shown the process must be fusion because energy is released the process must be fusion because of have your nucleus formed a smaller nuclei the process must be fission because a large nucleus breaks into smaller nuclei the process must be fission because neutrons are formed

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.