Convert to mols first take 47.6 divide by mr of al2... then times 6.2 times 10^3
Answer:
1. Freezing water: The number of hydrogen bonds increase.
2. Heating water: Hydrogen bonds break
Explanation:
In the liquid state, hydrogen bonds are continuously formed and broken and the average amount is 3.4. During freezing, molecule's energy decreases and there is less energy to break hydrogen bonds and for this reason, these bonds are more stable and average hydrogend bonds are close to 4 bonds.
When liquid water is heated, the kinetic energy raises and it causes the hydrogen bonds to break.
The answer is ultraviolet
Answer:
6*10^-3
Hope it helps
Procedure in the attached file
Answer:
20
Explanation:
The acceleration in this problem is 20
Acceleration is defined as the rate of change of velocity with time. When a force is exerted on a body and the net force is greater than zero, it begins to accelerate.
- A golf ball often accelerate from rest when being hit.
- Its initial velocity in this instance is usually zero.
- As it is hit, the acceleration increases to a point where it begins to tend towards zero is momentum decreases.
- From the given problem, the mass of the ball is 0.2kg and the acceleration is 20m/s²