5 Which two elements are combined in magnesium oxide?

Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?

1. explain hydrogen peroxide, h 2 o 2 properties and decomposition reaction. 2. describe how each of the following natural cycles plays a part in earth’s climate system. (a) the water cycle (b) the carbon cycle