The strength <span>of an acid and a base is determined by how completely they dissociate in water.
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Strong acids (like stomach acid) break down or dissociate in water. Weak acids maintains their protons in water.
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there is a chemical reaction because the ionic bond means that the ions are sharing electrons in a covalent bond there has been 2 non metals (or more) sharing pairs of electrons.
It has formed something new unlike a physical change.
Answer:
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Explanation:
You can think like this, Velocity is speed with a direction. When you say, the car was moving at the speed of 20 kilometers per hour, that's speed. But if you say, the car was moving at the speed of 20 kilometer per hour to the east. That's velocity, because you also stated the direction of the car.
A 3 should be placed in front of the H2 to balance it, since the 2 in front of NH3 says there are 6 H atoms. However on the other side, there are only 2. If we add the 3, 3 x 2 = 6. Then it is balanced.