Question 4 (16 points) A reaction was performed by adding 2.15-g of calcium fluoride, CaF2, into 50.0-mL of a 0.75-M sodium
hydoxide solution. As a result, 1.50-g of calcium hydroxide, Ca(OH)2, was produced.
1 CaF2 (s) + 2NaOH(aq) - 2 Naf (aq) + 1 Ca(OH)2 (s)
a. Calculate the number of moles of CaF2
Molar Mass of CaF2 = 78.074 grams/mole

Which of the following statements about hybrid orbitals is or are true? choose all that apply. choose all that apply. under sp2 hybridization, the large lobes point to the vertices of an equilateral triangle. after an atom undergoes sp hybridization there is one unhybridized p orbital on the atom. the angle between the large lobes of sp3 hybrids is 109.5∘

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.

Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg