Answer:
A and E
Explanation:
A and E are the answers! usa test prep told me. :L
Answer: This was because the experiment showed that a substance could emit radiation even while it was not exposed to light.
A) It decreases because the distance between the nucleus and outermost shell increases
Water combines with carbon dioxide to produce slightly acidic groundwater
that dissolves limestone and forms caves.
This is because the reaction between water and carbondioxide to form
bicarbonate ions( HCO₃⁻). The bicarbonate ions dissociate into Hydrogen
atoms thereby increasing the acidity.
The acidic environment results in the formation of acidic groundwater that
dissolves limestone and forms caves.
Read more on brainly.com/question/25385913
Na and Cl together form the compound
NaCl2
