Sodium hydroxide +HCI ➙ sodium chloride +H2O

Is this a:

If i can still dissolve more sugar into the solution at a certain temperature what would i call that solution

In 2002, the rare earth elements mine in mountain pass, california was closed because

Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!