The formula for nickel(II) nitrate would be ______________
Fill in the blank(s) with correct word
Ni(NO3)2
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A 50.00 ml sample of mercury at room temperature (293.0 K) is cooled. What is the volume of the sample when the mercury reaches 273.0 K? The coefficient of volume expansion of mercury is 182.0 x 
A. 49.39 ml B. 49.94 ml C. 49.82 ml D. 48.18 ml E. 49.96 ml
A runner runs 10 m from the origin toward the WEST to point A. He then runs from point A 20 m more toward the EAST to point B. He then runs from point B 30 m more toward the WEST to point C. The runner's total displacement from the origin to point C is
A. 60 m toward the WEST. B. 50 m toward the WEST. C. 20 m toward the WEST. D. 10 m toward the WEST. E. 0 m.
Process of Science: Why is it important to understand the Sun in order to understand the Earth's radiation belts and space weather?
What will be an ideal response?
If a 2100-kg car was moving at 30 m/s, what would be its kinetic energy expressed in the unusual (for kinetic energy) units of calories? (1 cal = 4.186 J)
a. 3.0 × 10^4 c. 3.8 × 10^6 b. 2.3 × 10^5 d. 1.1 × 10^5