In order to determine the concentration of a sodium hydroxide solution, a student is provided with two solutions labelled X and Y
X is aqueous Hydrochloric acid with a mass concentration of 19.6 g dm-3.
Y is a sodium hydroxide solution of unknown concentration

Which statement is true about the part of the electromagnetic spectrum that human eyes can detect? it contains only the colors of the rainbow and television waves. o it is divided into seven ranges of wavelengths. it contains ultraviolet, visible, and infrared light. it is divided into nine ranges of wavelengths.

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7. in the cycle, a virus integrates its dna into the host's dna, and its dna is replicated when the host dna is replicated. a. infectious b. retroviral c. lysogenic d. lytic