Answer:
D. Electrical energy is changed into mechanical energy
Explanation:
When you turn on the fan, the electricity that is given through the power outlet allows the fan to have the available energy to spins the fan blades. By the fan's blades spinning, this is a movement that can be described as mechanical energy.
No, since they are the strongest type of ray only elements that are dense can block them.
Things go sublime when changing automatically into vapor when it is heated, usually forming a solid figure.
Answer: Oxalic Acid is and
Arrhenius Acid.
Explanation: According to
Arrhenius Theory of acid and base, "Acid is any substance which when dissolved in water produces H⁺ Ions".
Therefore, Oxalic Acid is a diprotic substance, which is capable of donating protons in water. This acidity of oxalic acid can be dedicated to the stability of
conjugate base, this stability comes from resonance of the negative charges on
Oxalate ion. Below reaction shows the dissociation of Oxalic Acid into Protons and Oxalate Ion.