Salt water
sand and water
vinegar
this next one is for CEMENT
Concrete is a heterogeneous<span> (composite) material consisting of </span>cement<span>, water, fine aggregates and coarse aggregates. ... Otherwise it is a </span>heterogeneous<span> material.</span>Cement<span> may be called a </span>homogeneous<span> material. But concrete is not.</span>
Answer:
all of the choices are correct
Explanation
Hi,
Take a look at your periodic table. Fluorine is in group 17, and by its electron configuration you can see that its outer electron shell needs only one electron to be complete. For this reason bonding with an element that can donate a single electron is the optimal option.
It could be determined that it is a living thing if it has all of the 6 characteristics of life