Answer:
C
H²O is dissociated in water into H³O+ (hydronium ions) and OH- (hydroxide) given by;
2H²O <-----> H³O+ + OH-
If you notice initially we have 4 hydrogen atoms and 2 oxygen atoms. And similarly after the reaction we have 4 hydrogen atoms and 2 oxygen atoms.
Ratio of H to O is 4:2
or 2:1
This is very intuitive as we have 2 hydrogen atoms and 1 oxygen atom in a water molecule.
Answer:
D
Explanation:
the H2O2 under go reduction to remove O2 and then forms water
Moles of oxygen = 22g / 32 (Mr of O2)
Moles of oxygen = 0.7 moles (1 dp)
Avogadro's constant = 6.02×10^23 particles per mole
0.7 moles×(6.02×10^23) = Answer
This is assuming it wants O2, if it wants pure oxygen then replace 32 with 16.
That statement is true
Momentum is equal to mass times Velocity.
Let's take throwing rocks for example. The force of momentum that created by throwing rocks will creates more damage if the rock is heavier in mass and threw at a faster speed.
I don’t see any pictures of answer choices! Ah i’m sorry! :)
Step by step explanation:
