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vladimir1956 [14]

3 years ago

14

Which of the following is an example of a physical property? A. A nail rusting B. Table salt melting C. A camp fire burning D. A

silver spoon tarnishing

2 answers:

Doss [256]3 years ago

6 0

Answer:

a nail rusting

Explanation:

..... .....

galben [10]3 years ago

3 0

A is correct hope this helps

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Is a forward or reverse reaction favored?

Alex Ar [27]

Answer:

(a) $CH_3COOH \rightleftharpoons CH_3COO^-+ H^+$ : reverse reaction is favored.

(b) $AgCl \rightleftharpoons Ag^+ + Cl^-$ : reverse reaction is favored.

(c) $Al(OH)_3 \rightleftharpoons Al^{3+} + 3OH^-$ : reverse reaction is favored.

(d) $A+B\rightleftharpoons C$ : forward reaction is favored.

Explanation:

Hello,

(a) $CH_3COOH \rightleftharpoons CH_3COO^-+ H^+$ :

In this case, since the Ka is lower than 1, we infer the reverse reaction is favored since the reactant (acetic acid) will tend to have a higher concentration.

(b) $AgCl \rightleftharpoons Ag^+ + Cl^-$ :

In this case, since the Ka is lower than 1, we infer the reverse reaction is favored since the reactant (silver chloride) will tend to have a higher concentration.

(c) $Al(OH)_3 \rightleftharpoons Al^{3+} + 3OH^-$

In this case, since the Ka is lower than 1, we infer the reverse reaction is favored since the reactant (aluminium hydroxide) will tend to have a higher concentration.

(d) $A+B\rightleftharpoons C$

In this case, since the Ka is greater than 1, we infer the forward reaction is favored since the product (C) will tend to have a higher concentration.

Regards.

6 0

3 years ago

Which solution when mixed with a drop of bromthymol blue will cause the indicator to change from blue to yellow

Arisa [49]

Hello!

bromothymol blue in aqueous solution gives a yellow color.

<span>I hope I helped you</span>

6 0

3 years ago

What is the difference between a compound and a molecule?

Sergio [31]

A molecule is formed when two or more atoms joined together chemically. A compound is a molecule that contains at least two different elements. All compounds are molecules. Hope I helped

8 0

3 years ago

Read 2 more answers

A radio technician measures the frequency of an AM radio transmitter. The frequency is 11979kHz. What is the frequency in megahe

Murljashka [212]

Answer:

11.979 MHz

Explanation:

$f = \text{11979 kHz} \times \dfrac{\text{1 MHz}}{\text{1000 kHz}} = \textbf{11.979 MHz}$

7 0

3 years ago

1. The electron configuration below represents the ground state of an atom.

Natalka [10]

Answer:

${S}^{16}$

group 16 period 2 of the periodic table

note: that is not the electronic configuration, that is the Bohr model.

4 0

2 years ago