Question 13 of 33 Which element has a smaller atomic radius than strontium (Sr)?
The Periodic Table
O A Francium (F1)
B. Calcium (Ca)
C. Barium (Ba)
D. Rubidium (RD)

Mass of water is smething that you froma drug test or sum girl ya

The answer is true for your question.

Following are the  advantages of the parametric equations: 1) they can be used to graph curves that are not functions, like the unit circle.2) the parameter can be used to represent the quantity that is  useful to  provide us with better information about the graph.3)  it is useful to convert between rectangular equations and parametric equations.with specific reference to chemistry,  parametric equations are employ for solving hydrogen and hydrogen-like ions, quantum mechanically. herein, cartesian coordinates are converted in spherical polar coordinates. the solution obtained, when plotted on spherical polar graph paper, provides visualization of atomic orbital such as s,p,d and f. 

The answer is a. that is an exothermic reaction which means it produces heat