How many molecules, formula units or atoms are in 68.55 g of Sr(ClO4)2? Question 5 options:

3.26 x 10−20 formula units

1.44 x 1023 formula units

3.01 x 1023 formula units

1.10 x 1023 formula units

Llama have 74 chromosomes how many chromosomes will they be found in their gametes explain how you know

What is the value of keq for the reaction expressed in scientific notation?

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.