When this chemical reaction occurs, the product is a) a salt called lithium fluoride. b) a new element is formed c) the replacement of one element by another. d) the decomposition of two elements, lithium and fluorine.

Stion 13 of 20 : select the best answer for the question. 13. if a certain mass of mercury has a volume of 0.002 m3 at a temperature of 20°c, what will be the volume at 50°c? a. 0.002021624 m3 b. 0.004021624 m3 c. 0.000010812 m3 d. 0.002010812 m3

Three point charges, two positive and one negative, each having a magnitude of 20 μc are placed at the vertices of an equilateral triangle (30 cm on a side). what is the magnitude of the electrostatic force on the negative charge

The ability to make things happen is also called a. heat b. force c. matter d. energy