Help asap! 1. For a laboratory experiment, the instructions say add 4 grams of calcium chloride (CaCl2) to a 500mL volumetric Flask and dilute to the line with DI water. What is the molarity of this solution.

2. Determine the amount of milliliters needed in a .5M soilution of CuCl2 to provide 35g of pure CuCl2.

Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.

How do you lengthen a pattern piece? (family and consumer science, sewing)

How can you write e method for the experiment of separating sand from water by filtration process? 1-materials 2-steps 3-conclusion also the same for the separating process of water and salt by filtration or distillation. quick because i need to finish my hw