Answer: The Correct answer that can be said is ( Sedimentary Rock )
that being said there may be other types of rocks to use as an answer but without option choices this is my best guess
Explanation:
Sedimentary rock You find a rock in which the grains are arranged in parallel bands of white and black crystals. The rock is probably a Metamorphic rock Cooling & crystallization produce
i would appreciate brainliest have a great day
It will cause damage to your eyes, organs, and central nervous system.
Answer:
The vinegar is not enough to neutralize the pool.
Explanation:
The [OH⁻] in the pool is 1.0x10⁻¹mol / L. To know how many moles of OH⁻ are in the solution, you must calculate volume of the pool thus:
V(pool) = πr²h
<em>Where r, radius is d/2 = 12m/2 = 6m and h is deep of the pool = 10m
</em>
V(pool) = π(6m)²*10
V(pool) = 1131m³
As 1m³ = 1000L:
1131m³ × (1000L / 1m³) = 1131000L in the pool.
And moles of OH⁻ are:
1.0x10⁻¹mol / L ₓ 1131000L = 131100 moles of OH⁻ are in the pool
The neutralization of OH⁻ with H⁺ is:
OH⁻ + H⁺ → H₂O
<em>That means to neutralize the pool you must add 131100 moles of H⁺.
</em>
The H⁺ concentration in a vinegar pH = 2 is:
pH = -log [H⁺]
2 = -log [H⁺]
1x10⁻²M = [H⁺]
4L are just 4x10⁻² moles of [H⁺]. As you need 131100 moles of H⁺:
<h3>The vinegar is not enough to neutralize the pool.</h3>
Answer:
0.00079
When you round 0.000789 to 2 significant figures you would get
0.00079
because the zeros are just place holders if they are right after the decimal and don't have other numbers between them
then 789 rounds up to 790, which is 79
Explanation: