3.2 x 3.2 x 3.2 x 3.2 = 104.8576
Answer:
Area of the shaded region = 329.7cm
Explanation:
Area of circle = π r2
Area of smaller circle with radius of 4 cm = 3.14 * 4 * 4 = 50.24cm
Area of bigger circle with radius of 11 cm = 3.14 * 11 * 11 = 379.94cm
To calculate the area of shaded region,
Area of the shaded region = bigger region - smaller region
39.7 - 50.24 = 329.7cm
Area of the shaded region = 
For a 100% yield
761.31 g of <span>2-chloro-2,4-dimethylpentane will be produced.</span>
Answer:
Examples of metals are aluminium, copper, iron, tin, gold, lead, silver, titanium, uranium, and zinc.
Explanation: This is was makes a metal a metal: it needs to be:
<u><em>high electrical and thermal conductivity as well as by malleability, ductility, and high reflectivity of light.</em></u>
Answer:
18 moles of H₂.
Explanation:
The balanced equation for the reaction is given below:
2Al + 6HCl –> 2AlCl₃ + 3H₂
From the balanced equation above,
2 moles of Al reacted to produce 3 moles of H₂.
Finally, we shall determine the number of mole of H₂ produced by the reaction of 12 moles of Al. This can be obtained as follow:
From the balanced equation above,
2 moles of Al reacted to produce 3 moles of H₂.
Therefore, 12 moles of Al will react to produce = (12 × 3)/2 = 18 moles of H₂.
Thus, 18 moles of H₂ were obtained from the reaction.
