Answer:
8.95 g
Explanation:
- ZnCl₂ (aq) + 2 KOH (aq) → Zn(OH)₂ (s) + 2 KCl (aq)
First we <u>calculate how many ZnCl₂ moles reacted</u>, using<em> the given concentration and volume</em>:
- 0.360 M * 0.250 L = 0.090 mol ZnCl₂
Then we <u>convert ZnCl₂ moles into Zn(OH)₂ moles</u> [ Zn(OH)₂ is the precipitate, as it is the solid]:
- 0.090 mol ZnCl₂ * = 0.090 mol Zn(OH)₂
Finally we<u> convert 0.090 Zn(OH)₂ moles into grams</u>, using its <em>molar mass</em>:
- 0.090 mol Zn(OH)₂ * 99.424 g/mol = 8.95 g
Answer:
Explanation:
1. A measure of how quickly velocity is changing is the acceleration
Acceleration is the rate of change of velocity with time. The rate at which a body is changing its velocity is known as the acceleration.
It is measured in the unit m/s²
2. Speed in a given direction is the velocity
Velocity is a vector quantity which measures the magnitude of motion in a specific direction. It is simply speed in a given direction.
When we say a motorcycle travels at the rate of 5m/s due east, we are describing the velocity of such body.
3. Force that resists moving one object against another is the friction
Friction is a force that opposes motion. It prevents a body from moving.
4. Measure of the pull of gravity on an object Weight
Weight is a measure of the amount of gravitational force on a body. It is mathematically expressed as;
W = mg
W is the weight, m is the mass and g is the acceleration due to gravity
5 Tendency of an object to resist a change in motion is inertia
Inertia is the tendency of body to resist change in motion. It is the ability of a body to remain in a perpetual state of rest.
6 Size is the magnitude
Answer:
it is usually a restaurant that is located all over a certain country.