Explanation

IRON:

Symbol: Fe

Atomic mass: 55.845 u

Atomic number: 26

Electron configuration: [Ar] 3d64s2

Density: 7.874 g/cm³ (near room temperature)

Electrons per shell: 2, 8, 14, 2

Melting point: 1,538 °C

Explanation

Explanation

IRON:

• Symbol: Fe
• Atomic mass: 55.845 u
• Atomic number: 26
• Electron configuration: [Ar] 3d64s2
• Density: 7.874 g/cm³ (near room temperature)
• Electrons per shell: 2, 8, 14, 2
• Melting point: 1,538 °C

Explanation

Citric acid occurs naturally in:

• Lemons,
• Limes,
• Pineapples,
• Grapefruits,
• Berries (not blueberries),
• Tomatoes,
• Broccoli,
• Carrots,
• and some varieties of Peppers.

Explanation

Explanation

Acetylene reacts with one molecule of HCl to form vinyl chloride.

However, when excess HCl is added, the second molecule of HCl also reacts with the vinyl chloride, attaching both chlorine atoms to the same carbon atom, resulting in 1,1-dichloroethane. 

Explanation

Glucose (C6H12O6) is a type of carbohydrate, specifically a simple sugar or monosaccharide.

It is a vital source of energy for many living organisms, including humans.

Glucose is a primary component of many carbohydrates, such as starch, cellulose, and glycogen.

Explanation

Blood has a pH level of around 7.3, which is closest to neutral (pH 7).

Explanation

The assumption that is NOT made: "No external forces acting on the fluid"

• Bernoulli's equation requires gravity to be present and acting on the fluid.
• The height/head term ($\rho gh$) in the equation is derived from the work done by gravity. Without gravity, this term would not exist.

Additional information

• Steady flow — Properties at any point stay constant over time.
• Incompressible fluid — Density (ρ) is constant.
• Negligible viscosity — The fluid is inviscid/frictionless, so no shear forces or turbulence along the streamline.

Explanation

• The Clausius–Clapeyron equation relates vapor pressure and temperature.
• It describes how vapor pressure changes with temperature.
• It is commonly used for liquid–vapor equilibrium.
• It involves the enthalpy of vaporization.
• As temperature increases, vapor pressure generally increases.