The answer is C if I’m wrong than I’m sorry
Answer:
Explanation:
I ) Oxide that dissolves in water to give a solution of pH greater than 7 - Na₂O
It is a metallic oxide and therefore basic in nature . It will dissolve in water to give pH more than 7 .
II )
Acidic oxide insoluble in water - SiO₂ . It reacts with CaO to give CaSiO₃
III ) NO₂
Acid anhydride : SiO₂ It is anhydride of H₂SiO₃ ( H₂O + SiO₂ )
IV ) No effect on moist paper - CO . It is neutral oxide .
V ) Peroxide - Ba O₂
VI ) Amphoteric - ZnO
Solar power is extremely expensive and can be even more expensive to maintain.
Answer:
1.332 Molar is the molarity of the glucose solution.
Explanation:
Molarity of the solution is the moles of compound in 1 Liter solutions.
Mass of glucose = 60.00 g
Molar mass of glucose = 180.2 g/mol
Volume of the solution = V = 250.0 mL = 0.250 L
(1 mL = 0.001 L)
1.332 Molar is the molarity of the glucose solution.
142 g ---------------- 6.02 x 10²³ molecules
0.920g g ------------ ( molecules )
molecules = 0.920 x ( 6.02 x 10²³ ) / 142
molecules = 5.53 x 10²³ / 142
= 3.89 x 10²¹ molecules
1 molecule P2O5 -------------------------- 7 atoms
3.89 x 10²¹ molecules -------------------- ( atoms )
atoms = ( 3.89 x 10²¹) x 7 / 1
atoms = <span>2.72 x 10²² atoms of P2O5
Hope this helps!!!
</span>
