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3 years ago

How to write ionic formulas

Chemistry

2 answers:

lianna [129]3 years ago

6 0

Like how to spell it or what the meaning is?

il63 [147K]3 years ago

4 0

You have to identify the charges of your metal and non- metal and then switch the charges for example

Iron(III)Sulfide-> Fe2+S3

The charge iron is 3 and the charge of sulfide is 2, so you just switch

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1). The Kinetic Molecular Theory 5 points

Rus_ich [418]

Answer:

D- Kinetic Molecular Theory

Explanation:

. Gases consist of large numbers of tiny particles that are far apart relative to their size.

.Collision between gas particles and between particles and container walls are elastic collisions.

.Gas particles are in continuous motion. possess kinetic energy.

. Gas molecules have negligible intermolecular forces.

. Gas molecules have an average kinetic energy proportional to the ideal gas's absolute temperature.

7 0

3 years ago

The penguin has a ___ body that helps it to move quickly in water.

Lerok [7]

The penguin has a sleek body that helps it to move quickly in water.

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3 years ago

Read 2 more answers

Calculate the ionization constant for the following acids or bases from the ionization constant of its conjugate base or conjuga

suter [353]

Answer:

7.41 × 10⁻⁵

Explanation:

Let's consider the basic dissociation reaction of trimethylamine (CH₃)N).

(CH₃)N + H₂O = (CH₃)NH⁺ + OH⁻

According to Brönsted-Lowry, in this reaction (CH₃)N is a base and (CH₃)NH⁺ is its conjugate acid. The pKb for (CH₃)N is 9.87. We can calculate the pKa of (CH₃)NH⁺ using the following expression.

pKa + pKb = 14

pKa = 14 - pKb = 14 - 9.87 = 4.13

Then, we can calculate the acid dissociation constant for (CH₃)NH⁺ using the following expression.

pKa = -log Ka

Ka = antilog - pKa = antilog -4.13 = 7.41 × 10⁻⁵

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3 years ago

Is condensation of ethanol a physical change or a chemical change

tigry1 [53]

Answer: Physical change

Explanation: Condensation is the phase change of a gas to the liquid state. There is no formation of new products so it does not undergoes chemical change. Any phase change is considered a physical change.

7 0

4 years ago

In a titration, acetic acid is used as the analyte and sodium hydroxide is the titrant. At the equivalence point, will the ph be

ValentinkaMS [17]

Titration involves acetic acid as the analyte and sodium hydroxide as the titrant. ph is more than 7 at the equivalency point.

The titration's equivalence point is the moment at which adequate titrant has been introduced to react to all of the material being titrated. A strong acid combined with something like a weak base produces a somewhat acidic salt. Similarly, combining a strong base with a mild acid yields a slightly basic salt.

When acetic acid combines with NaOH, it produces the salt sodium acetate and water. When acetic acid, CH3COOH, interacts with sodium hydroxide, sodium acetate, CH3COONa, and water are formed.

CH3COO- + H2O → CH3COOH + OH-

The acetate ion's reaction raises the ph to over 7.

Moles of acetic acid is equivalent to moles of sodium hydroxide at the equivalence point. As additional sodium hydroxide is added, the solution will become pink.