Answer:
C. An upward force is created
Explanation:
As an airplane moves forward, the shape of its wing creates lower pressure above the wing than below, yielding a net upward force known as lift.
Hope this helps!
The moles of any substance are equal to the substance's mass divided by its molar mass. Therefore, in order to calculate the moles of copper, you would divide the reacted mass by 63.55
Answer:
the molecular formula of Ozone is O_3.
In the reaction,
Cr3+(aq) + 6H2O -------> [Cr(H2O)6]3+(aq)
Cr3+ IS THE LEWIS ACID H2O is the Lewis base.
A Lewis acid is a compound or chemical that accepts a lone pair of electrons. In the above equation, Cr3+ is accepting the lone pair of electrons.
In science, physical quantities like length, weights etc are measured in units of metric or International System of units.
Some importance units are as follows:
1. Meter (m) for length.
2. Liter (L) for volume.
3. Gram (g) and kilogram (kg) for mass.
4. Degree Celsius (oC) for temperature.
5. Second for (s) time.
Given that the length of an object = 45.2 cm
SI unit of length is m
100 cm = 1.0 m
Therefore
45.2 cm * 1 .0 m/100 cm
= 0.452 m
