According to becquerel, what created the image on photographic film when it was placed in a drawer with uranium salt crystals?
the crystals emitted something that affected the film the same way light did.
the film caused a chemical change in the crystals.
the film exposed spontaneously, even when it was not exposed to light.
the uranium spontaneously emitted radioactive particles that exposed the film.

How many moles are in 250 grams of tungsten (w)? * 4.4x10^23 moles 4.2x10^23 moles 0.7 moles 1.4 moles

What happened in 2012 and how does it illustrate the importance of understanding the sun and how it works?

Someone offer some answers to this, i will give 98 coins and mark as brainliest! i will put the rest of the lab down in the comments,solutions pre-lab questions: in this lab, you will make fruit drinks with powdered drink mix. complete the pre-lab questions to get the values you need for your drink solutions. calculate the molar mass of powered fruit drink mix, made from sucrose (c12h22o11).using stoichiometry, determine the mass of powdered drink mix needed to make a 1.0 m solution of 100 ml. (hint: use molarity = to find the moles of drink mix, then convert moles to grams using a mole conversion.)what mass of powdered drink mix is needed to make a 0.5 m solution of 100 ml?