Balance the following DOUBLE REPLACEMENT chemical reaction: The correct coefficients are: FeCl3 (aq) + NaOH (aq)--> Fe(OH)3 (s) + NaCl (aq)

a
3, 1, 3, 1
b
1, 3, 1, 3
c
3, 3, 1, 1
d
1, 1, 3, 3

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.

Stage in which a star’s outer layers have started to cool and grow outward?