Can someone just explain to me what to write! i already have my logo just what do I write

In numbering carbon atoms in the parent chain of a hydrocarbon, why would you number from right to left, rather than left to right

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.