Matter either loses or absorbs energy<span> when it </span>changes from one state to another<span>. For example, when matter </span>changes from a<span> liquid to </span>a<span> solid, it loses </span>energy<span>. The opposite </span>happens<span> when matter </span>changes from a<span> solid to </span>a<span> liquid. For </span>a<span> solid to</span>change<span> to </span>a<span> liquid, matter must absorb </span>energy<span> from its surroundings</span>
Kinetic energy of an object is directly connected to the speed object. Like a toy car being used on a table, the toy car will speed up which means the kinetic energy of that toy car will also increase
Answer:
A
Explanation:
The specific heat capacity can be defined as the amount of energy that is required to raise the temperature of 1kg of a body by exactly 1k.
When calculating the amount of heat required, we usually employ the use of the formula that relates the amount of heat, the mass of the body, the specific heat capacity and the temperature change. The amount of heat is represented by H, the mass of the body by m, the heat capacity by C while the temperature difference is represented by delta T
Answer:
H-F> H-O> O-F
while H-H is nonpolar.
Explanation:
The bond is polar when electronegativity difference of both bonded atom is greater than 0.4.
Electronegativity values of O. F and H are
O = 3.4
H = 2.2
F = 3.98
For O-F
3.98 - 3.4 = 0.58
For H-F
3.98 - 2.2 = 1.78
For H-O
3.4 - 2.2 = 1.2
For H-H
2.2 -2.2 = 0
So H-H is nonpolar.
Answer:positive electrode
Explanation:
Anode can also be referred to as positive electrode in a cell
