A. Petrified fossil should be the answer
Answer:
true
Explanation:
the more energy a wave has the greater the amplitude is
Increase in speed, decrease in speed, and or change in direction.
Answer:
7.28 mol Na2SO4
Explanation:
Since it is already in moles, all we have to do is use a molar ratio
A molar ratio is the proportions of reactants and products using the balanced equation. When writing a mole ratio, the given information must cross out with the right thing.
7.28 mol H2SO4 * 1 mol Na2SO4/1 H2SO4 = 7.28 mol Na2SO4
*notice how the H2SO4 crosses out
It gains or loses electrons to become like the Noble gases having 8 valence electrons to become the most stable.