The reduction reaction is the gain of electrons while oxidation reaction is the loss of electrons. For potassium ion(K+), the reaction should be K+ + e- ==> K. So the answer is (1).
46. F the mouth.
Because the mouth works as the food smasher and with the addition of saliva the food will be softer to digest.
47. D The Weight
Because weight is mass times the acceleration of gravity and acceleration of gravity is different on moon 1.620 m/s^2.
48.G Two elements
Because compounds are made of two or more than two elements.
Camouflage adaptation will most likely help a prey avoid a predator . #answerwithquality #BAL
Answer:
Most of the atom is empty space. The rest consists of a positively charged nucleus of protons and neutrons surrounded by a cloud of negatively charged electrons. The nucleus is small and dense compared with the electrons, which are the lightest charged particles in nature.
Answer:
When you have a base, which is reacting with an acid, the products are water and a salt, which is composed by the anion and the cation from the compounds, mentioned before.
Explanation:
Let's see this example.
HCl + NaOH → NaCl + H₂O
The reaction of an acid and a base is called neutralization, where you make water.
The thing is that this reactions are not energetically favorable. In this case, chloride and sodium are weak conjugated base and acid, therefore they do not react in water, to form the corresponding acid and base.
Na⁺ + H₂O ← NaOH + H₃O⁺
Cl⁻ + H₂O ← HCl + OH⁻