A sample of water with a mass of 622.7g undergoes a temperature change from 90.98°C
to 96.70°C. What is the heat change in Joules? Cwater=4.18J/g°C

A)0251608.10
B)3561.8J
C)14888.5)
D)2.51X105)

A__ is two or more substances that are together in the same place but are not chemically combined

Which of the following is not an assumption that scientists must make about the natural world? a. regularity b. causality c. predictability d. plausibility

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.