There are six protons and eight neutrons present in the carbon atom as shown.
<h3>What is the nucleus?</h3>
The nucleus of an atom consists of its protons and its neutrons. The protons are positively charged while the neutrons have no charge.
From the symbol of the element as shown in the question, we can see that there are six protons and eight neutrons present.
Learn more about nucleus of atoms:brainly.com/question/10658589
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Answer:
6.517.
Explanation:
- It is known that for pure water: [H₃O⁺] = [OH⁻], so water is neutral.
<em>Kw = [H₃O⁺][OH⁻] = 9.25 x 10⁻¹⁴.</em>
∵ [H₃O⁺] = [OH⁻].
∴ [H₃O⁺]² = 9.25 x 10⁻¹⁴.
∴ [H₃O⁺] = √(9.25 x 10⁻¹⁴) = 3.041 x 10⁻⁷ M.
∵ pH = - log[H₃O⁺]
<em>∴ pH</em> = - log(3.041 x 10⁻⁷) = <em>6.517.</em>
Answer:
Yes, Convection can occur in both liquids and gases
Explanation:
The Particle Theory suggests that Particles are always moving. Convection occurs in the breeze you feel, when the warm particles quickly move upwards resulting in cold air quickly sinking and creating a breeze. Convection also occurs when you boil water, the molecules of warm water quickly move to the top and cold water quickly moves to the bottom resulting in a circle the constantly keeps the water circulating, making it boil.
Answer:
Solubility of gases in water: a. decreases with increasing pressure above solution. b. increases with increasing pressure above solution.c. is independent of pressure above solution.d. Gases are not soluble in water.e. none of the above
The answer to the question is option B (increases with increasing pressure above solution).
Explanation:
Solubility is the chemical property of a solute to dissolve into a solvent. The solubility which is the characteristic property of a specific solute–solvent combination of a substance fundamentally depends on the solvent used, as well as temperature and pressure.
Concentration of molecules in the gas phase increases with increasing pressure. At low pressure, a gas has a low solubility, while at at high pressure, a gas has a high solubility. The rate at which gas molecules collide with the surface of the liquid and dissolve depends on the pressure of the gas in relation to the number of molecules of gas per unit volume. The solubility of gases in water, makes an increase in pressure result in a proportional increase in solubility, whereas a decrease in pressure decreases solubility.
This can be expressed in the equation: C= k x Pgas
where C= solubility of gas in solvent, k= proportionality constant and Pgas = partial pressure of the gas above the solution.
Answer:
C
Explanation:
84.6 kJ of energy released when 2.50 moles of nitrogen dioxide is decomposed.
