З BaCl2 how many atoms

How many oxygen atoms are present in a formula unit of calcium acetate?

ycow [4]

Answer:

⭐✞⭐✞⭐It consists of four atoms of carbon, six atoms of hydrogen, one atom of calcium and four atoms of oxygen.⭐✞⭐✞⭐report my answer⭐✞⭐✞⭐

3 0

3 years ago

At 22 °C, an excess amount of a generic metal hydroxide, M(OH)2, is mixed with pure water. The resulting equilibrium solution ha

brilliants [131]

Answer:

2.29x10⁻¹² is Ksp of the salt

Explanation:

The Ksp of the metal hydroxide is:

M(OH)₂(s) ⇄ M²⁺ + 2OH⁻

Ksp = [M²⁺] [OH⁻]²

As you can see in the reaction, 2 moles of OH⁻ are produced per mole of M²⁺. It is possible to find [OH⁻] with pH, thus:

pOH = 14- pH

pOH = 14 - 10.22

pOH = 3.78

pOH = -log[OH⁻]

1.66x10⁻⁴ = [OH⁻]

And [M²⁺] is the half of [OH⁻], [M²⁺] = 8.30x10⁻⁵

Replacing in Ksp formula:

Ksp = [8.30x10⁻⁵] [1.66x10⁻⁴]²

Ksp = 2.29x10⁻¹² is Ksp of the salt

7 0

3 years ago

Read the given expression.

vovangra [49]

The variable X is the effective nuclear charge, and it remains constant down a group.

Discussion:

The effective nuclear charge is referred to as the actual amount of positive (nuclear) charge experienced by an electron in a polyelectronic atom.

The effective nuclear charge experienced by an electron is otherwise called the core charge.

It is mathematically evaluated as the difference in the atomic number and the core electrons. and since elements in the same group have equal number of Valence electrons, the effective nuclear charge is constant down the group.

Read more on effective nuclear charge:

brainly.com/question/8614020

5 0

3 years ago

The four fundamental forces are arranged in the increasing order of their relative strength.

Sonbull [250]

Answer:

Both weak interaction and strong interaction act only between non-atomic particles.

Explanation:

Arrange the four fundamental forces in increasing strength:

Gravity,
"Weak" interaction,
Electromagnetic interaction, and
Strong interaction.

Thus, this question is about the strong and weak interactions. In particular, the choices are concerned about properties common to both types of interactions.

The ranges of electromagnetic interaction and gravity are infinite. However, the ranges of strong and weak interactions are much smaller. The maximum range of weak interactions is around $\rm 10^{-16}\; m$ . The maximum range of strong interactions is around $\rm 10^{-15}\;m$ .

Weak interaction occurs between left-hand fermions. This class of particles includes neutrinos, which do not carry any charge. The most energetic strong interactions occur between quarks, which are all charged. Some of the weaker residual strong interactions occur between particles that are made of quarks. That includes both protons and neutrons (which do not carry any charge.) This type of strong interaction holds nuclei intact.

Consider the choices:

The range of neither weak nor strong interactions is infinite. This range is smaller than the radius of atomic nuclei.
Strong and weak interactions indeed act between charged particles. However, there are exceptions such as neutrinos and neutrons.
The ranges of strong and weak interactions are so small that they are nearly undetectable outside of atomic nuclei. Both interactions act only between non-atomic particles such as protons and neutrons as well as electrons and quarks.
Atoms are too large to experience weak and strong interactions.

6 0

3 years ago

When discussing discordant and harmonious sound waves, which statement is false?

notka56 [123]

When discussing discordant and harmonious sound waves, the statement tat is false is : if the original waves combine to form irregular displacement of air, the sound will be discordant. The fact is, irregular displacement of air does not guarantee sound discordance

hope this helps

3 0

3 years ago

З BaCl2 how many atoms​

З BaCl2 how many atoms