In the final chemical equation, hf and o2 are the products that are formed through the reaction between h2o and f2. before you can add these intermediate chemical equations, you need to alter them by multiplying the
a. second equation by 2 and reversing the first equation.
b. first equation by 2 and reversing it.
c. first equation by (1/2) and reversing the second equation.
d. second equation by 2 and reversing it.

A

Explanation:

edge 2021

-be a crystalline solid

- be soluble in water

-conduct electricity

hope this : )

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.