For the reaction:
3A +5B--->12C
Here 3 moles of A are reacting with 5 moles of B to produce 12 moles of C.
so, 1 mole of A will produce = 12÷3 moles of C
= 4 moles of C
so 2 moles of A will produce = 4×2 moles of C
= 8 moles of C
so, 2 moles of A are reacting with excess of B to produce 8 moles of C.
so , the answer is 2 moles of A are reacting with excess of B to produce 8 moles of C.
Answer:
becuz they are. I hope this helps! ;D
Explanation:
Have a good day!
Answer : The molar mass of unknown substance is, 39.7 g/mol
Explanation : Given,
Mass of unknown substance = 9.56 g
Volume of solution = 100.0 mL
Molarity = 2.41 M
Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.
Formula used :
Now put all the given values in this formula, we get:
Therefore, the molar mass of unknown substance is, 39.7 g/mol
7=cells
9= The Central Nervous system
10= not sure
Answer:
5 electrons
Explanation:
When an atom loses are gain the electrons ions are formed.
There are two types of ions.
Anion
Cation
1 = Anion
It is formed when an atom gain the electrons. when atom gain electron negative charge is created on atom. For example.
X + e⁻ → X⁻
2= Cation
It is formed when an atom loses the electrons. when atom lose electron positive charge is created on atom. For example.
X → X⁺ + e⁻
When an atom loses three electrons +3 charge is created. If this atom have 8 protons it means there were 8 electrons too. When it lost three electrons then remaining number of electrons are 5.
X → X³⁺ + 3e⁻
