If the temperature changes in a chemical reaction, what has occured?
a)energy was destroyed
b)energy was created
c)there was no energy transfer
d)energy was transferred

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.

[ou.03jthe pictures below show the wavelengths and intensities of electromagnetic radiations emitted by three stars, star 1, star 2, and star 3. intensity intensity- intensity- 1000 3500 6000 8500 11000 wavelength (a) star 1 1000 3500 6000 8500 11000 1000 3500 6000 8500 11000 wavelength (a) wavelength (a) star 2 star 3 which of these statements is correct about the color of the three stars? star 2 is white in color o star 2 is yellow in color star 1 and star 3 are yellow in color star 1 and star 3 are white in color