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3 years ago

Which of these descriptions are properties of salts? Check all that apply.

2 answers:

8 0

Below are the answers:

dissociate in water

are electrolytes

are a product of a neutralizing reaction

Sodium chloride, otherwise called basic salt, table salt, or halite, is a synthetic compound with the equation NaCl. Sodium chloride is the salt most in charge of the saltiness of the sea and of the extracellular liquid of numerous multicellular living beings.

Ann [662]3 years ago

7 0

Answer : The options that indicates the properties of salt are written below;

Option C) Dissociate in water - When salts are dissolved in water they form ions namely, cations and anions.

Option D) Are electrolytes - Once the salt forms ions when dissociated in the water it conducts electricity. Hence, salts are good electrolytes.

Option F) Are product of neutralizing reaction - When an acid and base reacts the products obtained are salt and water. This reaction is called as neutralization reaction. Therefore, Salts are the products of neutralizing reactions.

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Using the Rydberg formula, calculate the initial energy level when an electron in a hydrogen atom transitions into n= 2 and emit

EleoNora [17]

Answer:

Explanation:

Using the Rydberg formula as:

$\frac {1}{\lambda}=R_H\times Z^2\times (\frac {1}{n_{1}^2}-\frac {1}{n_{2}^2})$

where,

λ is wavelength of photon

R = Rydberg's constant (1.097 × 10⁷ m⁻¹)

Z = atomic number of atom

n₁ is the initial final level and n₂ is the final energy level

For Hydrogen atom, Z= 1

n₂ = 2

Wavelength = 410.1 nm

Also,

1 nm = 10⁻⁹ m

So,

Wavelength = 410.1 × 10⁻⁹ m

Applying in the formula as:

$\frac {1}{410.1\times 10^{-9}}=1.097\times 10^7\times 1^2\times (\frac {1}{n_{1}^2}-\frac {1}{2^2})$

Solving for n₁ , we get

n₁ ≅ 1

3 0

4 years ago

Read 2 more answers

What does C12 H22 O11 phSO mean

ioda

Those are basically molecular formula. Which is Table sugar or cane sugar. Generally called sucrose.

8 0

3 years ago

Given the reaction: Ca(s) + Cu2+ (aq) - Ca2+(aq) + Cu(s)

Inga [223]

Answer:

Explanation:

Copper 2+ to copper solid is the correct reduction half reaction as it involves electron gain

7 0

4 years ago

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A cell has a standard emf of + 0.135 v at 298 k. part a what is the value of the equilibrium constant for the cell reaction if n

Irina-Kira [14]

To look for the value of the equilibrium constant for the cell where n=1, it is computed by:
Eo = RT / nF * ln(K)
(Eo * nF) /RT = ln(K)
(0.135 * 1mol* e- * 9.65E4C/mol*e) / (8.314J / molK * 298K) = ln(K)
10.52 = lnK
e^10.52 = e ^ lnK
K = e ^263/25
K = 37049.12 is the answer.

4 0

3 years ago

1. How would the loss of tin oxide from the evaporating, due to spattering, etc. affect the empirical formula of your tin oxide?

Burka [1]

Answer:

It will have no effect

Explanation:

The loss of tin oxide to evaporation will have no effect on the empirical formula of a compound.

The empirical formula of any compound is the simplest formula of that compound by which the combining atoms can be represented.

This formula is not affect by physical changes.

According to the law of constant composition "all pure samples of the same compound have the same element in the same proportion by mass".

Regardless of the mass loss or gain of any tin oxide compound, it will have the same empirical and molecular formula. The atoms are still combining in the ratio to give the product.

6 0

4 years ago