Answer:
They neutralize each other
Answer:
Se⁻²
Explanation:
Even though the atom is not shown, we can consult the periodic table. Selenium (Se) is in group 6 and period 4, so it has 6 valence electrons. To be stable, the atom must have a noble gas configuration with 8 valence electrons, thus, selenium must gain 2 electrons.
When an atom gain electrons, it is negatively charged, because electrons have a negative charge. So, the ion formed is Se⁻².
Answer:
The number of moles in 80 g of O2 = 3280 = 2.5.
Explanation:
Trust me ._.
Answer:
Glass
Explanation: it has its atoms tightly bonded with each other