What type(s) of bond(s) does carbon have a tendency to form?

As a banana ripens, physical changes cause the peel to change color from green to yellow to brown.

Diano4ka-milaya [45]

true as the banana ripens, physical changes cause the peel to change color from green to yellow to brown.

4 0

3 years ago

Rank the ions in each set in order of decreasing size, and explain your ranking:

iragen [17]

Ranking of the ions in each set in order of decreasing size -

Cs+ > Ba²⁺ > Sr²⁺

Cs+ has the biggest size, because its more downward (compared to Sr2+) and more to the left (compared) ot Ba2+.

Sr2+ has the smallest size because it's more upwords (compared to Cs+ and Ba2+).

For isoelectronic ions, the greater the nuclear charge , the greater is the attraction for electrons and smaller is ionic radius. In other words, size of the isoelectronic ions decreases with increase in atomic number.

Cl3+ has the smallest ion among all.

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5 0

2 years ago

Determine the [H+] or [OH−] for each of a solutions at 25°C.

levacccp [35]

Answer:

Solution B: [OH-] = 1×10^–6 M

Solution C: [OH-] = 1×10^–6 M

Explanation:

Solution B:

Hydronium ion concentration, [H3O+] = 9.99×10^–9 M

Hydroxide ion concentration, [OH-] = ?

The Hydroxide ion concentration, [OH-] can be obtained as follow:

[H3O+] × [OH-] = 1×10^–14

9.99×10^–9 × [OH-] = 1×10^–14

Divide both side by 9.99×10^–9

[OH-] = 1×10^–14 / 9.99×10^–9

[OH-] = 1×10^–6 M

Therefore, the Hydroxide ion concentration, [OH-] is 1×10^–6 M

Solution C:

Hydronium ion concentration, [H3O+] = 0.000777 M

Hydroxide ion concentration, [OH-] = ?

The Hydroxide ion concentration, [OH-] can be obtained as follow:

[H3O+] × [OH-] = 1×10^–14

0.000777 × [OH-] = 1×10^–14

Divide both side by 0.000777

[OH-] = 1×10^–14 / 0.000777

[OH-] = 1.29×10^–11 M

Therefore, the Hydroxide ion concentration, [OH-] is 1.29×10^–11 M

6 0

3 years ago

Volatile organic solvents have been implicated in adverse health effects in industrial workers. Greener methods are phasing thes

Viktor [21]

Volatile organic solvents consists of variety of chemical gases which are emitted in form of solid or liquids.

Everyday household products also emit these compounds which includes wax, paints which are applied on walls of the house.

These compounds are called as volatile substance because they have higher vapour pressure, and lower boiling points than as compared to the other compounds.

Common emissions sources of VOCs include dry cleaners; auto body shops; cars, trucks, and buses etc.

Volatile organic solvents play a vital role in the creation of ground-level ozone. Ground-level ozone can irritate the eyes, nose, and throat, and can aggravate asthma and other lung diseases, including bronchitis.

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3 0

1 year ago

What would happen if the equilibrium of a weak acid dissociation reaction

MrMuchimi

Answer:

Option A. The reaction would shift to balance the change.

Explanation:

According to Le Chatelier's principle, if an external constrain such as change in concentration, temperature or pressure is imposed on a chemical system in equilibrium, the equilibrium will shift in order to neutralize the effect.

If the equilibrium of a weak acid dissociation reaction is upset, the equilibrium will shift to balance the change as explained by Le Chatelier's principle.

7 0

3 years ago