Explanation

A 100% yield means the actual yield equals the theoretical yield, indicating an ideal reaction.

Explanation

To find the moles, divide the mass of NaOH (60g) by its molar mass (40g/mol). 

Moles = 60/40 =1.5 moles

Explanation

The ability of metals to be drawn into thin wires is known as ductility.

This property allows metals to be stretched without breaking.

This making them useful in various applications.

Explanation

Biogas is a type of natural gas produced through the anaerobic digestion of organic matter.

Such as animal manure and food waste.

It primarily consists of methane and carbon dioxide.

Explanation

A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power.

Transistors are one of the basic building blocks of modern electronics.

Explanation

Copper, gold, and silver are named coinage metals.

Because they have historically been used to mint coins.

Due to their malleability and resistance to corrosion.

Explanation

Electrolysis, which uses electricity as a catalyst, is the process of separating water (H2O) into oxygen (O2) and hydrogen (H2).

When an electric current is passed through water, it causes the water molecules to split into their component gases.

Explanation

Chlorine atoms in Chlorofluorocarbons (CFCs) are primarily responsible for the depletion of the ozone layer. 

Explanation

The molar mass of CaCO₃ is approximately 100 g/mol.

The molar mass of calcium (Ca) in CaCO₃ is about 40 g/mol.

The proportion of calcium in CaCO₃ is  40/ 100 = 0.4

Therefore, in 0.1 g of CaCO₃, the amount of calcium is  0.1×0.4=0.04 g.

Explanation

The binding energy per nucleon is highest for intermediate-sized nuclei (e.g., iron).

Both lighter and heavier nuclei have lower binding energies per nucleon compared to these intermediate nuclei.