How is beryllium (be) similar to calcium (ca)?
a. both are rare metals.
b. both react readily with elements in group 1.
c. both are very reactive.
d. both rarely combine with other elements.

One or more substances changing into one or more substances is an example of a

What woukd most likely be the transmittance at a 0.70 m solution of solute a? a) 7.6%b) 1.1%c)4.0%d)4.6%

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter