All categories

3 years ago

Which rule is used for writing the name of an ionic base?

Chemistry

2 answers:

Solnce55 [7]3 years ago

7 0

Binary Molecular Compounds

zlopas [31]3 years ago

7 0

When you name ionic compounds, you write the name of the metal first and then the nonmetal. Suppose that you want to name the compound that results from the reaction of lithium and sulfur. You first write the name of the metal, lithium, and then write the name of the nonmetal, adding an -ide ending so that sulfur becomes sulfide.

Ionic compounds involving polyatomic ions follow the same basic rule: Write the name of the metal first, and then simply add the name of the nonmetal (with the polyatomic anions, it is not necessary to add the -ide ending).

You might be interested in

8. Balance the following nuclear equations: ^65/30Ca -> ^65/29Sc +_______

a_sh-v [17]

Explanation:

⁶⁵₃₀Ca → ⁶⁵₂₉Sc + ⁿₓH

The reaction above is nuclear reaction.

In a nuclear reaction, the mass number and atomic number must be conserved.

The mass number is the superscript before the atom

Atomic number is the subscript before the atom

Conserving mass number:

65 = 65 + n

n = 0

conserving atomic number:

30 = 29 + x

x = 1

The unknown atom is a positron i.e a positively charged electron: ⁰₁e

⁶⁵₃₀Ca → ⁶⁵₂₉Sc + ⁰₁e

learn more:

Transmutation brainly.com/question/3433940

#learnwithBrainly

3 0

3 years ago

Which of the following is a cause of a dna mutation

lisov135 [29]

Answer:

Can you please tell us what the following are?

5 0

3 years ago

Which has a higher melting point KF or KI?

NeX [460]

Answer:

Explanation:

5 0

3 years ago

Which statement about protons is false?

Alekssandra [29.7K]

Answer: The correct answer is Option 4.

Explanation:

There are three sub-atomic particles present in an atom. They are: electrons, protons and neutrons.

Protons constitute in each and every atom.

The charge on proton is of equal magnitude as that of electron but having opposite sign. Proton carry a positive charge and electron carry a negative charge.

Protons and neutrons, both determine the mass of an atom.

Mass of 1 proton = 1.007276 u

Mass of 1 neutron = 1.008664 u

Mass of 1 electron = 0.00054858 u

Mass of proton is almost same as that of neutron but is more than the mass of electron.

Hence, the correct answer is Option 4.

6 0

3 years ago

An endergonic reaction with a Δh and Δs can be changed into an exergonic reaction.

zheka24 [161]

Full question:

This question is incomplete, here it is completed:

An endergonic reaction with a ______ ∆H and a ______ ∆S can be changed into an exergonic reaction by decreasing the temperature.

Option A: negative, positive

Option B: negative, negative

Option C: positive, positive

Option D: positive, negative

Answer:

Option B: negative, negative

Explanation:

The change in free energy (ΔG) of a system for a constant-temperature process is

ΔG = ΔH - TΔS

free energy is the energy available to do work. Thus, if a particular reaction is accompanied by a release of usable energy (that is, ΔG is negative), it is said to be exergonic. On the other hand, if a reaction consumes energy (that is, ΔG is positive), it is said to be endergonic.

Looking at the equation, we can see that if ΔH is negative and ΔS is negative, then ΔG will be negative only when TΔS is smaller in magnitude than ΔH. This condition is met when T is small.

ΔG = ΔH - TΔS

- -

This means that the reaction proceeds spontaneously at low temperatures. At high temperatures, the reverse reaction becomes spontaneous. An example of that would be the following reaction:

NH₃(g) + HCl(g) → NH₄Cl(s)

4 0

3 years ago