Answer:
Lithium oxide, Li₂O.
Explanation:
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In this case, according to the given amounts, it is possible to write down the chemical reaction as shown below:
Which means that the metallic oxide has the following formula: M₂O. Next, we can set up the following proportional factors according to the chemical reaction:
Thus, we perform the operations in order to obtain:
So we solve for x as shown below:
Whose molar mass corresponds to lithium, and therefore, the metallic oxide is lithium oxide, Li₂O.
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Answer:
Explanation:
Data provided:
Charge on the glass rod, Q = 0.680 μC = 0.680 × 10⁻⁶ C
Charge on the silk cloth, q = 0.590 μC = - 0.590 × 10⁻⁶ C
Distance between glass rod and the silk cloth, r = 11.0 cm = 0.11 m
now,
The force between (F) the charges is given as:
where,
k is the Coulomb's constant = 9 × 10⁹ N.m²/C²
on substituting the respective values, we get
or
Answer:
0.6moles
Explanation:
Check attachment
