A. rifling it helps spin the Projectile when fired for longer range and more accuracy.
Answer:
22.35 g of (NH₄)₃PO₄ will be produced by 7.5 g of ammonia.
Explanation:
H₃PO₄ + 3NH₃ → (NH₄)₃PO₄
H₃PO₄: 98 g/mol
NH₃: 17 g/mol
(NH₄)₃PO₄: 149 g/mol
17 g NH₃ _________ 1 mol
7.5 g NH₃ __________ x
x = 0.44 mol NH₃
3 mol NH₃ __________ 1 mol (NH₄)₃PO₄
0.44 mol NH₃ _________ y
y = 0.15 mol (NH₄)₃PO₄
1 mol (NH₄)₃PO₄ ____________ 149 g
0.15 mol (NH₄)₃PO₄ __________ z
z = 22.35 g (NH₄)₃PO₄
The electron configuration is 1s2 2s2 2p2, then the number of electrons is 2 + 2 + 2 = 6. The number of electrons equals the number of protons and this is the atomic number. So, the atomic number of the element is 6.<span> In a periodic table you can find that the element with atomic number 6 is carbon. So the answer is C.</span>
You should know this I am learning it this year and I am in 8th grade) Hydrogen<span>,</span><span>Carbon ,<span>Nitrogen and </span><span>Oxygen
</span></span>
Its NaHCO3
hope that helps
