12 OXYGEN ATOMS IN THE FORMULA.
Answer:
There are four phases of matter.
Explanation:
There are the three phases you normally hear about: solid, liquid and gas.
However, there is also a fourth named plasma.
PLS GIVE BRAINLIEST
Helium has an atomic number 2 and an atomic weight of 4 grams per mole. It is one of the noble gas (which means that it is stable) and also a nonmetal. Its electron configuration is 1s2. There are energy levels and they are s, p, d and f. The s level means that its maximum number of electrons is only 2.
1 it reacts with oxygen to form water.
21) it reacts with oxygen to form water
2) it is a solid at room temperature
3)54.3g
hope this helps :)
Answer: 3.5 moles
Explanation:
For every 2 moles of sulfur consumed, there are 3 moles of oxygen consumed.
This means that sulfur is the limiting reactant, meaning that 2(3)=6 moles of oxygen will be consumed.
Thus, 9.5-6=3.5 moles of oxygen will remain.