Which is not an indicator for a chemical change? A. Dissolving sugar

B. Unexpected temperature change

C. Unexpected color change

D. Combustion

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).

11 players on a field that has a maximum of 11 players

the answer for sodium is 0.186

the answer for rubidium is 0.251

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

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~ trueboss72