chuẩn sinh nhiệt của ozon (O3) bằng 142,3 kJ / mol. to create 0,5 mol khí oxi từ ozon ở trạng thái chuẩn điều kiện, nhiệt lượng trao đổi là bao nhiêu

Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5

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.

Which substance has non polar covalent bonds