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3 years ago

Is a corroding metal a chemical and physical change

Chemistry

2 answers:

Firdavs [7]3 years ago

6 0

Yes, it's changing the appearance of the metal caused by rain, salt, or acid

Vika [28.1K]3 years ago

5 0

Not both but it would be considered just a chemical change

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The solution you identified in question (1) acts as a buffer due to reactions that occur within the solution when an acid or a b

weeeeeb [17]

Answer:

The answer is " $\bold{CH_3COO^{-} \ (aq) + H^{+}\ (aq) \longrightarrow CH_3COOH \ (aq)}$ "

Explanation:

When $HCI$ is added in the chemical equation it reacts with sodium acetate so, it will give the following chemical equation:

$CH_3COONa\ (aq) + HCl\ (aq)\longrightarrow CH_3COOH\ (aq) + NaCl\ (aq)\\\\$

In this, the $CH_3COOH$ is a weak acid so, it not completely dissociated.

$CH_3COONa \ (aq) \ \ and \ NaCl$ were strong electrolytes they are completely dissociated.

The $HCl$ is a strong acid so, it is completely dissociated So, the net ionic equation is:

$CH_3COO^{-} \ (aq) + H^{+}\ (aq) \longrightarrow CH_3COOH \ (aq)$

8 0

3 years ago

Of these non-metals which one is likely to be least reactive

natulia [17]

Answer:

the answer is the swecond option

Explanation:

Its b ur well come

7 0

3 years ago

6. Explain why there is no base unit for the dimension of volume.

weqwewe [10]

Because in SI, the expectation is that area and volume will be expressed in terms of a linear dimension( the metre) or its multiples.

5 0

3 years ago

Which of the following is a mixture?

Ne4ueva [31]

It’s water vapor, does this help?

4 0

3 years ago

what is the order of decreasing bond length for a C-C bond composed of the following molecular orbitals?I. sp^3 - sp^3II. sp^2 -

skelet666 [1.2K]

Answer:

The decreasing order of bond length in the carbon - carbon bonds will be:

$C-C>C=C>C\equiv C$

Explanation:

Bond length is defined as average distance between two nuclei of bonded atoms in a molecule.Bond length is inversely proportional to the number of bonds present between two atoms.

$\text{Bond length} \propto \frac{1}{\text{Number of bonds}}$ ...[1]

Bond energy is defied as amount of energy required to break apart the bond of 1 mole of molecule into their individual atom. Bond energy is directly proportional to the number of bonds present between two atoms.

$\text{Bond Energy} \propto \text{Number of bonds}$ ..[2]