A cold air mass moves into an area of warm air
Answer:
a cold front
Explanation:
A warm front brings fog, but a cold front brings clouds that form from dry air. A warm front brings thunderstorms, but a cold front brings widespread snowfall.
Covalent Bonding
Ionic bonds are characterized by a transfer of electrons between elements to form a stable compound. These bonds typically form in compounds consisting of a metal and a nonmetal, which are positively and negatively charged respectively.
Covalent bonds are characterized by a sharing of electrons between the elements in the compound. Covalent bonds are formed between nonmetals and in many inorganic compounds as well.
Metallic bonding, as the name suggests, is formed between metals.
Since phosphorus pentoxide consists of 4 phosphorus atoms and 10 oxygen atoms, and both of which are categorized as nonmetals, phosphorus pentoxide is therefore, bonded covalently.
Answer:
In the lab, students were encouraged to look at different types of rocks and minerals. They were also told to observe the physical properties of the rocks and minerals. Based on these physical properties, the children were able to distinguish the different types of rocks and minerals. The major differences which the children will focus on will be the color, shape, hardness, luster, streak, fracture and cleavage of the rocks and minerals.
SO4 -2, or Sulfate
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