Answer:
If all the objects are placed at the same angle.
Explanation:
If all the objects are placed at the same angle so all the light from the flashlight shine comes back to the flashlight. If the A object is placed at the specific location at which the mirror X reflects the light after hitting it, then the other E object is placed at the location where the light comes after reflecting the A object then the light comes back to the flashlight if the angle between objects placement is right.
Answer:
Al(s) ⇄ Al³⁺(aq) + 3e⁻ (oxidation)
Mg⁺²(aq) + 2e⁻ ⇄ Mg(s) (reduction)
Explanation:
In the cell notation, first is placed the anode and then the cathode, so Al(s) is in the anode, where an oxidation reaction is taking place, and Mg²⁺ is in the cathode, where a reduction reaction is taking place. The half-reactions are:
Al(s) ⇄ Al³⁺(aq) + 3e⁻ (oxidation)
Mg⁺²(aq) + 2e⁻ ⇄ Mg(s) (reduction)
For the global reaction, it'll be necessary that the number of electrons (e⁻) is equal in the half-reactions, so the first one is multiplied by 2 and the second by three and the global reaction is:
2Al(s) + 3Mg⁺²(aq) ⇄ 2Al³⁺(aq) + 3Mg(s)
Answer: obey the law of conservation of mass.
Explanation:
The law of conservation of mass states that matter can not be created nor be destroyed but can be transformed from one form to another. Whenever one balance an equation, if the equation is not balance it means something has be destroyed or created, this we give an ideal that the equation is not balance or wrong.
Answer:
Water, air, and food.
Explanation:
All living things need air water and food to live.
They cant hold the pressure
