Actually, that does not happen until the protostar becomes a star when nuclear ignition starts and is maintained. It takes awhile for new star to go through its T-Tauri stage and settle down on the main sequence.
<span>A STAR does not reach hydrostatic equilibrium until it on the main sequence. Otherwise, it would remain a brown dwarf with not enough mass to to maintain nuclear fusion for more than 3,000 to 10,00 years. </span>
Answer:
B protons determine indentity and valence electrons determine chemical properties.
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Explanation:
Hey there!
Exothermic reactions release heat, causing its temperature to fall. If the reaction is lessening the temperature of the object while releasing all the heat, then you know that the reaction is indeed exothermic. Hope this helps!
#2. Percent error (or deviation) is calculated as ((TV-EV)/EV))*100
Answer:
Double bond
Chemical compounds with double bonds.
Ethylene Carbon-carbon double bond.
Acetone Carbon-oxygen double bond.
Dimethyl sulfoxide Sulfur-oxygen double bond.
Diazene Nitrogen-nitrogen double bond.
Explanation:
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