The totally crystalline and totally amorphous densities of a polyvinyl chloride (PVC) are 2.30 g/cm³ and 1.70 g/cm³ respectively. What is its density when PVC is 30% crystalline? a) 2.20 g/cm³ b) 2.10 g/cm³ c) 1.90 g/cm? d) 1.84 g/cm³

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Convert each of the following into scientific notation and into engineering notation:     Scientific notation Engineering notation SI unit with prefix Example: 36,800W 3.68 × 104 W 36.8 ×103 W 36.8 kW a)     3427m       b)     0.00456A       c)     0.000984N       d)     3100.0 × 102N       e)     0.0114 × 104m       f)      2205.2m       g)     30.0 ×10-2s       h)     0.0473s       i)      650,502Pa       j)      3.03 ×10-1A       k)     1000 × 10-3N