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Bumek [7]
2 years ago
8

A standard room temperature and pressure, most of the elements on the periodic table are

Chemistry
2 answers:
IgorC [24]2 years ago
6 0
Gasses i’m pretty sure.
VMariaS [17]2 years ago
4 0
It’s gasses I had this question not too long ago
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Ca(OH)2 (s) precipitates when a 1.0 g sample of CaC2(s) is added to 1.0 L of distilled water at room temperature. If a 0.064 g s
borishaifa [10]

Answer:

Ca(OH)2 will not precipitate because Q<Ksp

Explanation:

Ksp for Ca(OH)2 has already been stated in the question as 8.0 x 10-8mol2dm-6

The value of the reaction quotient depends heavily on the concentration of the reactants. As the initial concentration of the calcium carbide decreases considerably, the reaction quotient decreases until Q<Ksp hence the Ca(OH)2 will not precipitate from solution.

The reaction equation is:

CaC₂(s) + H₂O ⇒ Ca(OH)₂ + C₂H₂

From

Ca(OH)2= Ca2+ + 2OH-

Concentration of solution= 0.064×1/64= 1×10-3

Since [Ca2+] = 1×10-3

[OH-]= (2×10-3)^2= 4×10^-6

Hence Q= 4×10^-9

This is less than the Ksp hence the answer.

4 0
2 years ago
Match the following terms:
AURORKA [14]

Answer:

See below ~

Explanation:

<u>A to B</u>

⇒ Solid Phase

==========================================================

<u>B to C</u>

⇒ Melting

==========================================================

<u>C to D</u>

⇒ Liquid Phase

==========================================================

<u>D to E</u>

⇒ Vaporizing

============================================================

<u>E to F and beyond</u>

⇒ Gas Phase

3 0
2 years ago
How many grams of oxygen are needed to react with 4.6 grams of titanium(IV) chloride
velikii [3]
The answer is: 0.78g
6 0
3 years ago
In the periodic table , the elements are organized in order of ________atomic number .
jok3333 [9.3K]
The correct answer is increasing
4 0
3 years ago
Read 2 more answers
On the reaction below, label the BSA, BSB, CA, and CB. CH3COOH + H2O → CH3COO– + H3O+
Ostrovityanka [42]

Answer:

Acid(BSA) = CH₃COOH

Base (BSB) = H₂O

Conjugate base (CB) = CH₃COO⁻

Conjugate acid (CA) = H₃O⁺

Explanation:

Equation of reaction;

CH₃COOH + H₂O → CH₃COO⁻ + H₃O⁺

Hello,

From my understanding of the question, we are required to identify the

1) Acid

2) Base

3) conjugate acid

4) conjugate base in the reaction

Acid (BSA) = CH₃COOH

Base (BSB) = H₂O

CA = conjugate acid = H₃O⁺

CB = conjugate base = CH₃COO⁻

7 0
2 years ago
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