A rectangle measures 87.59 cm by 3.51 cm. Express its area with the proper number of
significant figures.

Solar energy is energy from the sun that is converted into thermal or energy. a. nuclear b. mechanical c. electrical d. chemical

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+

Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.