Idk if this is the information you need but the energy level gets higher the farther you move down the Periodic Table. Every element in a vertical line has the same energy level.
Answer:
3-³ x (1/3)^-5 x (1/3)-²
Applying Indices
3^-3 x (3-¹)^-5 x (3-¹)^-2
When the negative signs interact
they become positive
We now have
3^-3 x 3^5 x 3^2
= 3^-3 x 3^7
=3⁴.
Basic copper carbonate is decomposed by acids, such as solutions of hydrochloric acid HCl, into the copper(II) salt and carbon dioxide. In 1794 the French chemist Joseph Louis Proust (1754–1826) thermally decomposed copper carbonate to CO2and CuO, cupric oxide.
Answer:
Explanation:
C₆H₁₂O₆ + 60₂ = 6H₂0 + 6CO₂.
1 mole 6 mole
molecular weight of C₆H₁₂O₆ = 180 g
molecular weight of oxygen = 32 g
1 gram of glucose = 1 / 180 = 5.55 x 10⁻³ moles
1 gram of oxygen = 1 / 32 = 31.25 x 10⁻³ moles
1 mole of glucose reacts with 6 moles of oxygen
5.55 x 10⁻³ moles of glucose will react with 6 x 5.55 x 10⁻³ moles of oxygen
= 33.30 x 10⁻³ moles of oxygen .
But oxygen available = 31.25 x 10⁻³ moles
So available oxygen is less than required .
Hence oxygen is the limiting reagent .
b ) is the right option .
A substance where almost all have the same atomic number of protons