Answer:
B
Explanation:
Isotopes have the same number of protons but different number of neutrons.
Krypton is group 8 (or 18 depending on your choice of convention) and period 4.
Not sure what you mean by region, it's not a chemistry term in the context you're presenting. If you're asking for what type of element it is, it's a noble gas.
Answer: molecules of
and 11.06 moles of Flourine
Explanation:
According to avogadro's law, 1 mole of every substance weighs equal to the molecular mass and contains avogadro's number of particles.
1 mole of contains= molecules of
Thus 5.53 moles of contains= molecules of
1 mole of contains= 2 moles of Flourine
5.53 moles of contains= moles of Flourine
Hi, thank you for posting your question here at Brainly.
The acid dissociation constant, Ka, is an equilibrium constant that measure the strength of an acid. It is a ratio of the concentration of the products (salt and water) and the reactants (acid). The higher the Ka, the more tendency it is to favor the product side, which means more tendency to donate H+ ions. This is exactly the definition of a strong acid (high H+ ionized).
Thus, the answer is letter D.