Answer: 3.5 moles of hydrogen gas will be produced.
Explanation:
The balanced chemical equation is:
As HCl gets completely used up, 
is the limiting reagent.
According to stoichiometry :
6 moles of produces = 3 moles of 
Thus 7.0 moles of produces=
of
Thus 3.5 moles of hydrogen gas will be produced.
Answer:
That means an atom with a neutral charge is one where the number of electrons is equal to the atomic number. Ions are atoms with extra electrons or missing electrons. When you are missing an electron or two, you have a positive charge. When you have an extra electron or two, you have a negative charge.
Answer:
1. light is made up of energy
2. light travels in a straight line
3. the speed of light is exactly 299 792 km per second
4. this is the speed when light is traveling in a vacuum and not obstructed by the atmosphere 5. traveling at the speed of light you could go around the earth seven and a half times in a second
6. light can move super fast super slow and not at all
7. we can use light to weigh Stars
8. we can use light as tweezers
9. bubbles can turn sound into light
10. lasers can make things cold
