Answer:
Stinging cell, nematocysts.
Explanation:
Corals have tentacles present near the oral opening. The tentacles comprise cells called stinging cells. These cells contain nematocysts used by corals to sting the prey and stun them using the tentacles. These stinging cells present near the mouth which contains nematocysts that is an organelle that produces toxic substances used by the coral to catch their prey.
One mole of CuSO4 contains one mole of Cu2+.
One mole of any substance contains Avogadro's number of ions.
Therefore, number of ions of Cu2+ can be calculated as follows:
number of ions = number of moles * Avogadro's number
number of ions = 1 * 6.02 * 10^23 = 6.02 * 10^23 ions
Answer:
the acid strength is the order of > >
Explanation:
Given that :
a .
b.
c.
Acid strength is the ability of an acid to dissociate into a proton and an anion. Take for instance.
HA ↔ H⁺ + A⁻
The acid strength of the following compounds above are:
= 1.00 × 10⁻¹⁰
= 6.6 × 10⁻⁴
= 6.3 × 10⁻⁵
As the acid dissociation constant increases the relative acid strength also increases.
From above, the acid strength is the order of > >
, and F⁻ are Bronsted- Lowry acid
Bronsted- Lowry acid are molecule or ion that have the ability to donate a proton.
Answer: Metalloids
Explanation:
The dark “stair step” line on the right side of the periodic table is where the metalloids are. Metalloids “touch” the SSL. (Stair step line)
The metals are to the left of the SSL and the non metals are to the right of the SSL.