The table shows the melting point of an unknown compound Unknown Compound Melting Point (°C)
А
801
А
Kayla knows that compounds can be either ionic or covalent. She thinks this unknown compound must be ionic. Is she correct, and why or why not?
Yes, because the unknown compound has a high melting point caused by a weak ionic bond,
Yes, because the unknown compound has a high melting point caused by a strong ionic bond.
No, because the unknown compound has a high melting point caused by a weak covalent bond.
No, because the unknown compound has a high melting point caused by a strong covalent bond.
B
С
D

In meteorology, a  cloud  is an aerosol consisting of a visible mass of minute liquid droplets, frozen crystals, or other particles suspended in the atmosphere of a planetary body. nephology is the science of  clouds, which is undertaken in the  cloud  physics branch of meteorology.cirrus clouds  usually describe clouds high in the atmosphere that can include wispy clouds, typically with ice crystals. variations include cirrus, cirrocumulus and cirrostratus as defined by the cloud's position in the atmosphere.layered stratus clouds  have both flat tops and bases, and can appear as if they take up the whole sky, stretching from horizon to horizon. other combinations and variations include stratus, stratocumulus, nimbostratus and altostratus.cumulus clouds  often pile up in multiple layers of the atmosphere, representing clouds that develop vertically. cumulus clouds often look like pillars with anvil-type tops or columns of clouds stacked vertically. variations include cumulus, cumulus-congestus, cumulonimbus and altocumulus.

Do u have the n? or maybe the m?

Alpha particles have positive charge, beta particles have negative charge, and answer 4 just doesn’t make sense. thus, you are left with only one possible answer.

Hello.the answer is  hydrosphere, geosphere, and biosphere  have a nice day